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mobile - wireless communications
(58661 results)-
Whitepapers
Genetic Algorithm Based Frequency Domain Equalization for DS-UWB Systems Without Guard Interval
Apr 2011
In this paper, a Genetic Algorithm (GA) based Frequency Domain Equalization (FDE) scheme referred to as FDE-GA, which does not require any Guard Interval (GI), is proposed for Direct...
Provided by Institute of Electrical & Electronic Engineers
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Whitepapers
Analysis of UE Outage Probability and Macrocellular Traffic Offloading for WCDMA Macro Network With Femto Overlay Under Closed and Open Access
Apr 2011
Downlink coverage issues for macrocellular users (UEs) in a macrocellular network with Closed Subscriber Group (CSG) femto-cellular overlay have so far been investigated almost exclusively via...
Provided by Institute of Electrical & Electronic Engineers
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Whitepapers
Outage Probability Analysis for Collocated Spectrum- Sharing Macrocell and Femtocells
Apr 2011
Femtocells have been considered by the wireless industry as a promising solution not only to improve indoor coverage, but also to unload traffic from already overburdened macrocells. In spite of...
Provided by Institute of Electrical & Electronic Engineers
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Whitepapers
Cognitive Interference Management in Heterogeneous Femto-Macro Cell Networks
Apr 2011
In this paper, the authors propose a cognitive interference management scheme for heterogeneous cellular wireless networks (LTE-A and WiMAX) with macrocells and femtocells (that operate in a...
Provided by Institute of Electrical & Electronic Engineers
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Whitepapers
Analysis of Uplink Inter-Carrier-Interference Observed at Femtocell Networks
Apr 2011
In a typical macrocell network, all macrocell Mobile Stations (mMSs) are synchronized to the Macrocell Base Station (mBS) during the uplink. The mMSs that are closer to the mBS transmit their...
Provided by Institute of Electrical & Electronic Engineers
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Whitepapers
Game-Theoretic CDMA Power Control for Code Acquisition During Network Association
Apr 2011
This paper proposes a game-theoretic approach to the problem of resource allocation for the uplink of a CDMA wireless communication network, in which terminals code-locked to the access point...
Provided by Institute of Electrical & Electronic Engineers
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Whitepapers
Fair and Efficient Resource Sharing for Selfish Cooperative Communication Networks Using Cooperative Game Theory
Apr 2011
This paper proposes a cooperative game to perform a fair and efficient resource allocation for the Time Division Multiple Access (TDMA) based cooperative communication networks. In the considered...
Provided by Institute of Electrical & Electronic Engineers
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Whitepapers
Feedback Control Game for Channel State Information in Wireless Networks
Apr 2011
It has been well recognized that Channel State Information (CSI) feedback is important for downlink transmissions of closed-loop wireless networks. In this paper, the authors investigate the CSI...
Provided by Institute of Electrical & Electronic Engineers
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Whitepapers
Near-Capacity Irregular Convolutional Coded Cooperative Differential Linear Dispersion Codes Using Multiple-Symbol Differential Decoding Aided Non-Coherent Detection
Apr 2011
The authors propose a novel near-capacity Multiple-Symbol Differential Decoding (MSDD) aided cooperative Differential Linear Dispersion Code (DLDC), which exhibits a high grade of system design...
Provided by Institute of Electrical & Electronic Engineers
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Whitepapers
Closed-Loop Space Time Block Coding for High Data Rate With Angle Feedback
Apr 2011
Transmit diversity schemes with multiple streams obtain reliable transmission but suffer from interference when decoding multiple streams simultaneously. In this paper, the authors present...
Provided by Institute of Electrical & Electronic Engineers
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Whitepapers
Ant-Colony Based Near-ML Block Decoder in Asynchronous Cooperative MIMO Systems Using a Linear Dispersion Structure
Apr 2011
The linear dispersion structure is employed to accommodate the dynamic topology of cooperative networks, as well as to achieve higher throughput than conventional space-time codes based on...
Provided by Institute of Electrical & Electronic Engineers
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Whitepapers
Performance Analysis of the Binary Exponential Backoff Algorithm for IEEE 802.11 Based Mobile Ad Hoc Networks
Apr 2011
In an IEEE 802.11 based Mobile Ad hoc NETwork (MANET), a network node accesses a common wireless channel through the Distributed Coordinate Function (DCF), which is provided at the Medium Access...
Provided by Institute of Electrical & Electronic Engineers
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Whitepapers
Analysis of Jamming Effects on IEEE 802.11 Wireless Networks
Apr 2011
IEEE 802.11 wireless transmissions suffer from a big security flaw as they are vulnerable to Denial of Service (DoS) attacks which can degrade severely their performance, especially their achieved...
Provided by Institute of Electrical & Electronic Engineers
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Whitepapers
Channel Assignment and User Association Game in Dense 802.11 Wireless Networks
Apr 2011
In densely deployed IEEE 802.11 wireless networks, the transmission delay experienced by a user depends not only on the traffic load of the associated AP, but also the contention level from other...
Provided by Institute of Electrical & Electronic Engineers
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Whitepapers
Throughput and Delay Analysis of Half-Duplex IEEE 802.11 Mesh Networks
Apr 2011
Emerging technologies for mesh networks can provide users with last-mile service to an access point by forwarding data through wireless relays instead of through expensive wire-line...
Provided by Institute of Electrical & Electronic Engineers
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Whitepapers
Evaluating Uplink Schedulers in LTE in Mixed Traffic Environments
Apr 2011
3GPP's Long Term Evolution is defined by the standardization body's Release 8 and 9, and provides more than a substrate for 3GPP's IMT-Advanced Candidate, namely LTE-Advanced, which is due to be...
Provided by Institute of Electrical & Electronic Engineers
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Whitepapers
Uplink Component Carrier Selection for LTE-Advanced Systems With Carrier Aggregation
Apr 2011
Carrier Aggregation (CA) is one of the key features for LTE-Advanced. By means of CA, two or more Component Carriers (CCs) can be aggregated to form a much wider transmission bandwidth up to 100...
Provided by Institute of Electrical & Electronic Engineers
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Whitepapers
Cost-efficient Deployment of Relays for LTE-Advanced Cellular Networks
Apr 2011
Relay is used in LTE-Advanced cellular networks to assist eNB (evolved Node Base-station) for coverage extension and throughput enhancement. Compared to eNB, relay is advantageous on unit cost....
Provided by Institute of Electrical & Electronic Engineers
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Whitepapers
Small World Based Cooperative Routing Protocol for Large Scale Wireless Ad Hoc Networks
Apr 2011
Scalability of routing protocols is one of the most important open problems in large scale wireless networks. In this paper, a routing protocol for large scale wireless network, called as SCR...
Provided by Institute of Electrical & Electronic Engineers
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Whitepapers
Geo-assisted Multicast Inter-Domain Routing (GMIDR) Protocol for MANETs
Apr 2011
Large military ad hoc networks are often characterized by the interconnection of heterogeneous domains. The same trend is emerging in civilian MANETs (e.g., search and rescue, vehicular networks)....
Provided by Institute of Electrical & Electronic Engineers
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Whitepapers
Impact of Power Control on Capacity of TDM-Scheduled Wireless Mesh Networks
Apr 2011
In this paper, the authors consider power control as network layer problem in wireless mesh networks. The network connectivity between nodes is determined by their communication range which in...
Provided by Institute of Electrical & Electronic Engineers
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Whitepapers
Prolonging Network Lifetime Via Nodal Energy Balancing in Heterogenous Wireless Sensor Networks
Apr 2011
Practical implementation of balanced data routing algorithms in WSNs is challenging because of the heterogeneity among nodes inherited from the physical world in forms of different amount of nodal...
Provided by Institute of Electrical & Electronic Engineers
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Whitepapers
Minimum-Energy-Cost Algorithm Based on Superframe Adaptation Control
Apr 2011
To reduce the energy consumption and prolong wireless sensor networks lifetime, a super-frame adaptation control algorithm is proposed. The objectives are to insert more sleeping time for each...
Provided by Institute of Electrical & Electronic Engineers
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Whitepapers
Adaptive Sleeping Periods in IEEE 802.15.4 for Efficient Energy Savings: Markov-Based Theoretical Analysis
Apr 2011
The strict resource-constrained conditions under which Wireless Sensor Networks (WSNs) operate impose primary restrictions on power consumption. Algorithms implemented on sensor nodes should...
Provided by Institute of Electrical & Electronic Engineers
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Whitepapers
Energy-Aware Adaptive MAC Protocol for Real-Time Sensor Networks
Apr 2011
One of the important objectives in Wireless Sensor Networks (WSNs) is to minimize energy consumption while satisfying delay constraints. Although, several energy-aware MAC layer protocols exist,...
Provided by Institute of Electrical & Electronic Engineers
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Whitepapers
A Dual-Radio Framework for MAC Protocol Implementation in Wireless Sensor Networks
Apr 2011
In this paper, the authors present a dual-radio framework for implementing MAC protocols in wireless sensor networks. The framework is based on the observation that MAC operations can be...
Provided by Institute of Electrical & Electronic Engineers
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Whitepapers
P-MAC: A Cross-Layer Duty Cycle MAC Protocol Towards Pipelining for Wireless Sensor Networks
Apr 2011
Although the conventional duty cycle MAC protocols such as RMAC for Wireless Sensor Networks (WSNs) perform well in terms of saving energy and reducing end-to-end delivery latency, the authors...
Provided by Institute of Electrical & Electronic Engineers
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Whitepapers
Spectrum Allocation Framework for Multiuser Cognitive Radio Systems
Apr 2011
One of the most challenging issues in cognitive radio networks is to dynamically access the radio frequency spectrum in an uninterrupted manner. To achieve this, omniscient allocation of spectrum...
Provided by Institute of Electrical & Electronic Engineers
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Whitepapers
Opportunistic Spectrum Access With Channel Switching Cost for Cognitive Radio Networks
Apr 2011
The authors study the spectrum access problem in cognitive networks consisting of multiple frequency channels, each characterized by a channel availability probability determined by the activity...
Provided by Institute of Electrical & Electronic Engineers
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Whitepapers
Exploiting Heterogeneity Wireless Channels for Opportunistic Routing in Dynamic Spectrum Access Networks
Apr 2011
In this paper, the authors exploit the heterogeneity of wireless channels and propose an efficient Opportunistic Cognitive Routing (OCR) scheme for Dynamic Spectrum Access (DSA) networks. They...
Provided by Institute of Electrical & Electronic Engineers
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Whitepapers
Opportunistic Spectrum Access Protocol for Cognitive Radio Networks
Apr 2011
In this paper, the authors consider the Medium Access Control (MAC) protocol design for cognitive radio networks. An opportunistic spectrum access protocol named Slotted CRALOHA is proposed, and...
Provided by Institute of Electrical & Electronic Engineers
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Whitepapers
From Chaos to Secret Key Agreement
Apr 2011
A chaos-based key generation scheme is proposed and its performance analyzed. The Logistic Map Scheme (LMS) is a new approach for secure communication on wireless networks. The LMS guarantees...
Provided by Institute of Electrical & Electronic Engineers
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Whitepapers
QoE-Driven Sender Bitrate Adaptation Scheme for Video Applications Over IP Multimedia Subsystem
Apr 2011
IP Multimedia Subsystem (IMS) offers a framework which enables the provisioning of multimedia services with Quality of Service (QoS) and mobility support across heterogeneous networks. The aim of...
Provided by Institute of Electrical & Electronic Engineers
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Whitepapers
Channel Coding Over Multiple Coherence Blocks With Queueing Constraints
Apr 2011
This paper investigates the performance of wireless systems that employ finite-blocklength channel codes for transmission and operate under queueing constraints in the form of limitations on...
Provided by Institute of Electrical & Electronic Engineers
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Whitepapers
Design and Analysis of Networks With Large Components in Presence of Region-Based Faults
Apr 2011
Connectivity κ(G) of a network G is traditionally considered to be the primary metric for evaluation of its fault-tolerance capability. However, connectivity as a metric has several limitations -...
Provided by Institute of Electrical & Electronic Engineers
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Whitepapers
Multi-Level Round-Robin Multicast Scheduling With Look-Ahead Mechanism
Apr 2011
In this paper, the authors propose a Multi-Level Round-Robin Multicast Scheduling (MLRRMS) algorithm with Look-Ahead (LA) mechanism for N×N input-queued switches. Fan-out splitting is applied,...
Provided by Institute of Electrical & Electronic Engineers
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Whitepapers
The SAC OCDMA PON With Super Perfect Difference Code
Apr 2011
In this paper, the Super Perfect Difference (SPD) code family is presented and used in the compact Spectral Amplitude Code (SAC) Optical Code-Division Multiple-Access (OCDMA) Passive Optical...
Provided by Institute of Electrical & Electronic Engineers
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Whitepapers
Cloud-over-WOBAN (CoW): An Offloading-Enabled Access Network Design
Apr 2011
Today's access networks are increasingly shaped by the services that they provide to the end users. In a hybrid Wireless-Optical Broadband Access Network (WOBAN), to access any service, the...
Provided by Institute of Electrical & Electronic Engineers
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Whitepapers
A Two-Dimension Opportunistic CSMA/CA Protocol for OFDMA-Based In-Home PLC Networks
Apr 2011
Multichannel systems can benefit from multiuser diversity by assigning channels to users with best channel conditions in different time instants. In this paper, a two-dimension opportunistic...
Provided by Institute of Electrical & Electronic Engineers
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Whitepapers
A Development of Network Topology of Wireless Packet Communications for Disaster Situation With Genetic Algorithms or With Dijkstra's
Apr 2011
This paper discusses the use of Genetic Algorithms (GAs) and Dijkstra's algorithm to optimize load network topologies in distributed packet communication systems. These algorithm is fully...
Provided by Institute of Electrical & Electronic Engineers
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White Papers
Special Issue: Delay Tolerant Networks, Architecture, and Applications
Feb 2010
Delay-Tolerant Networking (DTN) enables communication in sparse mobile ad-hoc networks and other challenged environments where traditional networking fails and new routing and application...
Provided by Academy Publisher
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White Papers
A Longitudinal Study of Non-Voice Mobile Phone Usage by Teens From an Underserved Urban Community
May 2009
The authors report a user study of over four months on the non-voice usage of mobile phones by teens from an underserved urban community in the USA where a community-wide, open-access Wi-Fi...
Provided by Rice University
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White Papers
Usability Evaluation of a Commercial Pocket PC Phone: A Pilot Study
Sep 2007
Advanced mobile phones, such as Smartphones and Pocket PC phones, can potentially provide cost-effective ubiquitous IT access. Towards evaluating their potential and discovering their usability...
Provided by Association for Computing Machinery
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White Papers
LiveLab: Measuring Wireless Networks and Smartphone Users in the Field
Jan 2011
The authors present LiveLab, a methodology to measure real-world smartphone usage and wireless networks with a reprogrammable in-device logger designed for long-term user studies. They discuss the...
Provided by Rice University
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White Papers
Reflex: Managing Sensor Data Processing in Mobile Systems
Mar 2010
Many emerging mobile services leverage sensors available on mobile systems to acquire information regarding the physical world through sensory data processing, in order to serve human users...
Provided by Rice University
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White Papers
Mobile Learning: The Beginning of the End of Classroom Learning
Oct 2008
Mobile learning has evolved from electronic learning, which has evolved from distance learning. Barriers previously available for mobile learning have now all but disappeared, and the number of...
Provided by George Washington University
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White Papers
A Packet Scheduling to Enhance Quality of Service in IEEE 802.16
Oct 2009
Wireless Broadband Network like the standardized IEEE 802.16, popularly referred to as WiMAX is known for its differentiation of Quality-of-Service (QoS) feature based on the traffic requirement....
Provided by San Diego State University
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White Papers
The Mobile Devices and Its Mobile Learning Usage Analysis
Mar 2008
The usage of mobile devices for mobile learning is becoming increasingly popular. There is a new brand of students in the universities now-a-days who are easily connected to technology and...
Provided by International Association of Engineers
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White Papers
Dynamic Traffic Regulation for WiFi Networks
Jul 2007
Multimedia applications require high bandwidth in order to assure certain level of Quality of Service (QoS). It is well known that the characteristics of the traffic for multimedia applications...
Provided by University of Las Palmas de Gran Canaria
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White Papers
A Comparative Analysis of Network Benchmarking Tools
Oct 2009
Nowadays, there is a wide variety of network benchmarking tools, giving researchers and network administrators many choices to work with. However, this variety tends to difficult the selection...
Provided by International Association of Engineers
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Whitepapers
Wireless Networks for the Smart Energy Grid: Application Aware Networks
Mar 2010
Telecommunications operators are well versed in deploying 2G and 3G wireless networks. These networks presently support the mobile business user and/or retail consumer wishing to place...
Provided by IBM
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White Papers
Trusted Wireless Sensor Node Platform
Jul 2010
Security problems related to Wireless Sensor Networks (WSN) has directly influenced the credibility of WSN applications and its services. With the advancement and demand in the WSN applications...
Provided by Universiti Teknologi MARA
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White Papers
Toward Location-Based Services Using GPS-Based Devices
Jul 2008
The authors present here work on developing ePH, which is a framework for building of a dynamic user community that shares public interest information & knowledge, which is accessible through...
Provided by Norwegian University of Science and Technology
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White Papers
Security Through Elliptic Curves for Wireless Network in Mobile Devices
Oct 2010
The basic principle is "A function is easy to evaluate but its invert is infeasible unless a secret key is known". It is mathematically proved that security of cryptographic does not imply its...
Provided by Sri Venkateswara University
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White Papers
RFID Technology: A Review of Its Applications
Oct 2009
Radio Frequency IDentification (RFID) facilitates automatic identification of items using radio-waves. This technology albeit initially introduced in the 1940s and 1950s, has seen a drastic...
Provided by California State University, Fresno
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White Papers
Mobile RFID of Wireless Mesh Network for Intelligent Safety Care System
Oct 2007
This paper presents the Wi-Fi phone with RFID (Radio Frequency IDentification) of student entered the school, via Wireless Access Points (APs) of school will transmit MAC address with RFID of...
Provided by National Kaohsiung University of Applied Sciences
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White Papers
Dynamic Behavior of Bandwidth Control Management in Mobile Ad-Hoc Network
Oct 2009
Quality of Service (QoS) support in Mobile Ad-hoc NETworks (MANETs) is a challenging task. The major challenge in ad hoc networks lies in adapting multicast communication to environments, where...
Provided by International Association of Engineers
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White Papers
An Radio Frequency Identification and Enterprise Resource Planning -Enabled Mobile Asset Management Information System
Mar 2008
While more and more companies plan to implement asset management solutions to control supply chain costs and public sectors strive for effective and timely management of public facilities, there...
Provided by Yuan Ze University
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White Papers
Voice Calls Over Wi-Fi
Oct 2009
The use of Wi-Fi enabled cell phones to access internet away from the PC is increasing day-by-day. The use of Wi-Fi enabled phones as IP phones, and their communication within a local wireless LAN...
Provided by SSN College of Engineering
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White Papers
A Study on Speech-Controlled Real-Time Remote Vehicle On-Board Diagnostic System
Mar 2010
This paper proposed a speech-controlled real-time remote vehicle On-Board Diagnostic (OBD) system for telematics applications. The proposed system contains three main parts. They are OBD embedded...
Provided by Shu-Te University
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White Papers
Performance Analysis of SINEMO: Seamless IP-Diversity Based Network Mobility
Jul 2007
IETF has proposed Mobile IPv6-based NEtwork MObility (NEMO) Basic Support Protocol (BSP) to support network mobility. NEMO BSP inherits all the drawbacks of Mobile IPv6, such as inefficient...
Provided by Institute of Electrical and Electronics Engineers
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White Papers
A Scalable Bluetooth Scatternet Formed by Autonomous Mobile Robots and Cell Phones
Nov 2009
In the present work a novel communication scheme of an autonomous robot swarm via Bluetooth radio is investigated. In the presented solution an autonomous unit is equipped with two independent...
Provided by Kecskemet College
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White Papers
Mobile Message Passing Using a Scatternet Framework
Dec 2007
The Mobile Message Passing Interface is a library which implements MPI functionality on Bluetooth enabled mobile phones. It provides many of the functions available in MPI, including...
Provided by Creative Curriculum Connections
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White Papers
A Bluetooth Scatternet for the Khepera Robot
Oct 2007
Radio-based communication plays a vital role in multi-robot systems. Bluetooth is an energy-efficient communication technology suited for resource limited mini-robots such as the Khepera. However,...
Provided by University of Paderborn
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White Papers
Bluetooth Scatternet Formation Based on Minimum Spanning Tree Algorithm
Sep 2010
Bluetooth standard allows a connection between interpiconet and scatternet using low cost, low power in a short range radio frequency. A Bluetooth ad hoc network has several role components of a...
Provided by WSEAS
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White Papers
New Bluetooth Interconnection Methods: Overlaid Bluetooth Piconets (OBP) and Temporary Scatternets (TS)
May 2007
In a large scale Bluetooth network, the permanent Scatternet is regarded as the only method to interconnect Piconets. But, many Bluetooth devices do not support Scatternet. When they support it,...
Provided by University of California, Los Angeles (Anderson)
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White Papers
Impact of Interfering Bluetooth Piconets on a Collocated p-Persistent CSMA-Based WLAN
Jun 2009
In this paper, the effect of co-channeled BlueTooth (BT) piconets on a Carrier Sense Multiple Access (CSMA)-based Wireless Local Area Network (WLAN) is investigated. Specifically, the p-persistent...
Provided by Bell Labs
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White Papers
Detecting Congestion Within a Bluetooth Piconet: Video Streaming Response
Jun 2007
In a Bluetooth piconet, congestion may arise as multiple flows pass via the master node across the shared wireless channel. While packet loss and delay are common measures of congestion, within a...
Provided by University of Essex
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White Papers
Piconet Interference Modeling and Performance Evaluation of Bluetooth MAC Protocol
Jan 2011
The emergence of Bluetooth as a default radio interface has allowed handheld electronic devices to be instantly interconnected as ad-hoc networks. These short range ad-hoc wireless networks called...
Provided by University of Cincinnati
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White Papers
Lightweight Asymmetric Privacy-Preserving Authentication Protocols Secure Against Active Attack
Oct 2009
As pervasive computing technologies develop fast, the privacy protection becomes a crucial issue and needs to be coped with very carefully. Typically, it is difficult to efficiently identify and...
Provided by Institute of Electrical and Electronics Engineers
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White Papers
Study on Security of Wireless Sensor Network Based on ZigBee Standard
Jul 2009
The security of wireless sensor networks is very important. In order to research the security of wireless sensor networks based on the ZigBee standard, this paper firstly introduces the stack...
Provided by Institute of Electrical and Electronics Engineers
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White Papers
Partial Decentralized Wireless Control Through Distributed Computing for Seismically Excited Civil Structures: Theory and Validation
Jun 2007
This study presents a partially-decentralized control scheme for wireless control of large civil structures. Reducing the seismic response of a structure reduces the likelihood of significant...
Provided by Institute of Electrical and Electronics Engineers
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White Papers
Distributed Model Updating in Smart Wireless Monitoring Systems
Apr 2008
A wireless sensor integrates a radio to facilitate the exchange of data by wireless communications. In recent years, wireless sensors have rapidly matured with current platforms offering...
Provided by University of Michigan
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White Papers
Redundant Kalman Estimation for a Distributed Wireless Structural Control System
Jun 2007
Eliminating the need for extensive wiring between sensors, actuators and a controller could reduce the cost and enhance the attractiveness of control systems for civil structures. In this study,...
Provided by University of Michigan
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White Papers
Automated Modal Parameter Estimation by Parallel Processing Within Wireless Monitoring Systems
Mar 2008
With recent advances in low-cost wireless sensing and data acquisition technology, it has become feasible to instrument a large structure with a dense array of wireless sensors. Furthermore,...
Provided by ISSN
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White Papers
Wireless Sensing and Control
Jul 2007
Wireless technologies can play a significant role in the monitoring and control of civil structures. Structural sensing and control technologies can benefit in terms of installation cost and time...
Provided by University of Michigan
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White Papers
Decentralized H? Controller Design for Large-Scale Wireless Structural Sensing and Control Systems
Sep 2007
Real-time feedback control has been a topic of great interest to the structural engineering community in the last few decades. A feedback structural control system includes a network of sensors,...
Provided by University of Michigan
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White Papers
A Parallel Simulated Annealing Architecture for Model Updating in Wireless Sensor Networks
Nov 2009
In recent years, wireless sensing technologies have provided a much sought-after alternative to expensive cabled monitoring systems. Wireless sensing networks forego the high data transfer rates...
Provided by Institute of Electrical and Electronics Engineers
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White Papers
Wireless Monitoring Techniques for Structural Health Monitoring
Sep 2007
Recently, a variety of wireless structural health monitoring systems has been demonstrated as viable substitutes for traditional high-cost tethered monitoring systems. In this study, a prototype...
Provided by University of Michigan
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White Papers
Information Driven Wireless Sensing and Control for Civil Structures
May 2007
With recent advances in wireless technology, wireless networks can potentially offer a low cost alternative to traditional cable-based systems, while providing flexible and reconfigurable...
Provided by Stanford University
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Whitepapers
Performance Comparison and Analysis of Manycast QoS Routing Algorithm Over Optical Burst Switched Networks
Jun 2011
In network communications, there are many methods to deliver data from sources to destinations. During the past few years, the authors have observed the emergence of new applications that use...
Provided by International Journal on Computer Science and Technology (IJCST)
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Whitepapers
A Comparison Between FCFS and Mixed Scheduling
Jun 2011
When more than one process is run-able, the operating system must decide which one first. Scheduling refers to a set of policies and mechanisms built into the operating system that govern the...
Provided by International Journal on Computer Science and Technology (IJCST)
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Whitepapers
Novel Approach for Improvisation of Medium Access Protocol for Wireless Sensors Networks
Jun 2011
Wireless sensor networks use battery-operated computing and sensing devices. A network of these devices will, collaborate for a common application such as environmental monitoring. The authors...
Provided by International Journal on Computer Science and Technology (IJCST)
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Whitepapers
Ontology for MANET Intrusion Detection
Jun 2011
At present, the security issues on MANET have become one of the primary concerns. The MANET is more vulnerable to attacks as compared to wired networks due to distributed nature and lacks of...
Provided by International Journal on Computer Science and Technology (IJCST)
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Whitepapers
A Framework for Security Enhancement in Mobile-Ad-Hoc Network
Jun 2011
Mobile Ad-hoc NETwork (MANET) is a collection of wireless mobile nodes which dynamically forms a temporary network without the use of any existing network infrastructure or centralized...
Provided by International Journal on Computer Science and Technology (IJCST)
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Whitepapers
The Server Reassignment Problem for Load Balancing in Structured Peer to Peer Systems
Jun 2011
Application-layer Peer-To-Peer (P2P) networks are considered to be the path break in the Internet infrastructure. Load balancing among the peers is critical for these systems to be effective. Most...
Provided by International Journal on Computer Science and Technology (IJCST)
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Whitepapers
Design of Wireless Communication Link Using Transreceiver System
Jun 2011
Modern Optical Wireless Communication (OWC) was an offshoot of the development of laser technologies in the 1960s. The main aim then was to develop communication between satellites and submarines...
Provided by International Journal on Computer Science and Technology (IJCST)
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Whitepapers
Comparative Performance Evaluation of AODV Over CBR and TCP Traffic
Jun 2011
Mobile ad hoc network is a collection of wireless mobile nodes dynamically forming a network topology without the use of any existing network infrastructure. The purpose of this paper is to...
Provided by International Journal on Computer Science and Technology (IJCST)
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Whitepapers
AELB: Adaptive and Efficient Load Balancing Schemes to Achieve Fair Routing in Mobile Ad Hoc Networks (MANETs)
Sep 2011
Currently, Mobile Ad hoc NETworks (MANETs) can be deployed in various scenarios but the presence of varying degree of resources, mobility of nodes and the lack of load-balancing capabilities in...
Provided by International Journal on Computer Science and Technology (IJCST)
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Whitepapers
Chain Based Energy Proficient Data Gathering Protocol for Wireless Sensor Networks
Sep 2011
Wireless network is composed of sensor nodes. Sensor nodes are deployed in harsh physical environment to gather data and deliver the data to the remote base station. Since sensor nodes have energy...
Provided by International Journal on Computer Science and Technology (IJCST)
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Whitepapers
Direction of Arrival Estimation Using Sparse Ruler Array Design
Apr 2012
In this paper, a new Direction Of Arrival (DOA) estimation approach is addressed for the case of more sources than physical receiving antennas by considering a novel non-uniform array design. The...
Provided by Delft University of Technology
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Whitepapers
Out-of-Band Signaling Scheme for High Speed Wireless LANs
Sep 2007
In recent years, the physical layer data rate provided by 802.11 Wireless LANs has dramatically increased thanks to significant advances in the modulation and coding techniques employed. However,...
Provided by Institute of Electrical & Electronic Engineers
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Whitepapers
Retry Limit Based ULP for Scalable Video Transmission Over IEEE 802.11e WLANs
Jun 2007
The authors investigate the packet loss behavior in the IEEE 802.11e Wireless Local Area Networks (WLANs) under various retry limit settings. Considering scalable video traffic delivery over the...
Provided by Institute of Electrical & Electronic Engineers
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Whitepapers
Optimized Cross-Layer Design for Scalable Video Transmission Over the IEEE 802.11e Networks
Dec 2007
A cross-layer design for optimizing 3-D wavelet scalable video transmission over the IEEE 802.11e networks is proposed. A thorough study on the behavior of the IEEE 802.11e protocol is conducted....
Provided by Institute of Electrical & Electronic Engineers
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Whitepapers
Applying Spring-Relaxation Technique in Cellular Network Localization
Jul 2010
This paper presents a simple solution suitable for the mandatory localization function for E-911 services specified by FCC. The authors' solution introduces zero-length spring technique to compute...
Provided by Institute of Electrical & Electronic Engineers
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Whitepapers
A Sender-Side TCP Enhancement for Startup Performance in High-Speed Long-Delay Networks
Jul 2010
Many previous studies have shown that traditional TCP slow-start algorithm suffers performance degradation in high-speed and long-delay networks. This paper presents a sender-side enhancement,...
Provided by Institute of Electrical & Electronic Engineers
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Whitepapers
Controlling Route Discovery for Efficient Routing in Resource-Constrained Sensor Networks
Dec 2009
Existing ad-hoc network routing strategies base their operations on flooding route requests throughout the network and choosing the shortest path thereafter. However, this typically results in a...
Provided by Institute of Electrical & Electronic Engineers
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Whitepapers
A Network Lifetime Aware Cooperative MAC Scheme for 802.11b Wireless Networks
Dec 2009
Cooperative communication techniques have earlier been applied to design of the IEEE 802.11 Medium Access Control (MAC) and shown to perform better. High rate stations can help relay packets from...
Provided by Institute of Electrical & Electronic Engineers
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Whitepapers
Collision Codes: Decoding Superimposed BPSK Modulated Wireless Transmissions
Dec 2009
The introduction of physical layer network coding gives rise to the concept of turning a collision of transmissions on a wireless channel useful. In the idea of physical layer network coding, two...
Provided by Institute of Electrical & Electronic Engineers
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Whitepapers
Fluid-Based Modeling of TCP Veno
May 2009
This paper makes use of the fluid-based approach to model the throughput of TCP Veno flow over wired/wireless networks. A generalized formula is derived between Veno's throughput and its window...
Provided by Institute of Electrical & Electronic Engineers
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Whitepapers
Improving Videophone Transmission Over Multi-Rate IEEE 802.11e Networks
Apr 2009
In this paper, the authors propose an adaptive system for improving videophone transmission over EDCA. They consider that a videophone contains a Constant Bit Rate (CBR) voice source and a...
Provided by Institute of Electrical & Electronic Engineers
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Whitepapers
An On-Off Queue Control Mechanism for Scalable Video Streaming Over the IEEE 802.11e WLAN
Apr 2009
In this paper, the authors study the issue of scalable video streaming over IEEE 802.11e EDCA WLANs. Their basic idea is to control the number of "Active" nodes on the channel in order to reduce...
Provided by Institute of Electrical & Electronic Engineers
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Whitepapers
A Practical Path Loss Model for Indoor WiFi Positioning Enhancement
Feb 2008
Positioning within a local area refers to technology whereby each node is self-aware of its position. Based on empirical study, this paper proposes an enhancement to the path loss model in the...
Provided by Institute of Electrical & Electronic Engineers
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Whitepapers
Semi-Markov Modeling for Bandwidth Sharing of TCP Connections With Asymmetric AIMD Congestion Control
Dec 2007
This paper presents a semi-Markov model that evaluates the performance of TCP connections with asymmetric Additive Increase and Multiplicative Decrease (AIMD) congestion control settings involved...
Provided by Institute of Electrical & Electronic Engineers
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Whitepapers
Wireless Indoor Positioning System With Enhanced Nearest Neighbors in Signal Space Algorithm
Feb 2007
With the rapid development and wide deployment of wireless Local Area Networks (WLANs), WLAN-based positioning system employing signal-strength-based technique has become an attractive solution...
Provided by Institute of Electrical & Electronic Engineers
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Whitepapers
Cooperative Localization in Partially Connected Mobile Wireless Sensor Networks Using Geometric Link Reconstruction
May 2012
The authors extend one of their recently proposed anchorless mobile network localization algorithms (called PEST) to operate in a partially connected network. To this aim, they propose a geometric...
Provided by Institute of Electrical & Electronic Engineers
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Whitepapers
Localization and Tracking of a Mobile Target for an Isogradient Sound Speed Profile
Feb 2012
In this paper, the authors analyze the problem of localizing and tracking a mobile node in an underwater environment with an iso-gradient Sound Speed Profile (SSP). They will show that range-based...
Provided by Delft University of Technology
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Whitepapers
Sparse Multi-Target Localization Using Cooperative Access Points
Mar 2012
In this paper, a novel multi-target Sparse Localization (SL) algorithm based on Compressive Sampling (CS) is proposed. Different from the existing literature for target counting and localization...
Provided by Delft University of Technology
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Whitepapers
Compressive Sampling Based Differential Detection for UWB Impulse Radio Signals
Oct 2011
Non-coherent detectors significantly contribute to the practical realization of the UltraWide-Band (UWB) Impulse-Radio (IR) concept, in that they allow avoiding channel estimation and provide...
Provided by Reed Elsevier
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Whitepapers
Dynamic Multidimensional Scaling for Low-Complexity Mobile Network Tracking
May 2012
Cooperative localization of mobile sensor networks is a fundamental problem which becomes challenging for anchor-less networks where there is no pre-existing infrastructure to rely on. Two...
Provided by Institute of Electrical & Electronic Engineers
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Whitepapers
Compressive Wideband Power Spectrum Estimation
May 2012
In several applications, such as wideband spectrum sensing for cognitive radio, only the power spectrum (a.k.a. the power spectral density) is of interest and there is no need to recover the...
Provided by Institute of Electrical & Electronic Engineers
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Whitepapers
Minimizing Slowdown in Heterogeneous Size-Aware Dispatching Systems
Mar 2012
The authors consider a system of parallel queues where tasks are assigned (dispatched) to one of the available servers upon arrival. The dispatching decision is based on the full state...
Provided by Aalto University
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Whitepapers
Optimal Degree Distribution for LT Codes With Small Message Length
May 2007
In this paper, the authors have focused on optimizing the degree distribution of LT codes when the message length N is small. They have specifically considered two optimization criteria, called...
Provided by Helsinki University of Technology
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Whitepapers
Continuum Percolation Threshold for Permeable Aligned Cylinders and Opportunistic Networking
May 2012
In the continuum percolation problem, objects of given shape are placed according to a k-dimensional Poisson process. Two objects are neighbors if they overlap. The percolation is said to occur if...
Provided by Aalto University
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Whitepapers
Wavelet-Based Real Time Detection of Network Traffic Anomalies
Jan 2012
Real time network monitoring for intrusions is offered by various host and network based intrusion detection systems. These systems largely use signature or pattern matching techniques at the core...
Provided by University of South Carolina
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Whitepapers
Containing Hitlist-Based Worms With Polymorphic Signatures
May 2007
Worms are a significant threat to network systems, both through resource consumption and malicious activity. This paper examines the spread of a class of hitlist-based worms that attempt to...
Provided by Towson University
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Whitepapers
Securing VoIP Services in Multi-Hop Wireless Mesh Networks
Aug 2007
Voice over Internet Protocol (VoIP) service has been a very popular and important application over the Internet. Wireless VoIP also becomes more and more popular due to its features of low cost...
Provided by University of South Carolina
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Whitepapers
Improving Availability With Adaptive Roaming Replicas in Presence of Determined DoS Attacks
Jan 2012
Static replicas have been proven useful in providing fault tolerance and load balancing, but they may not provide enough assurance on the continuous availability of mission-critical data in face...
Provided by University of South Carolina
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Whitepapers
Modeling and Analysis of IEEE 802.16 PKM Protocols Using CasperFDR
Aug 2009
IEEE 802.16 is the standard for broadband wireless access. The security sub-layer is provided within IEEE 802.16 MAC layer for privacy and access control, in which the Privacy and Key Management...
Provided by Institute of Electrical & Electronic Engineers
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Whitepapers
Efficient and Secure Multicast in WirelessMAN: A Cross-Layer Design
Oct 2007
Effectively adding security measures to a multicast service is an intriguing problem, especially when the service is deployed in a wireless setting. Next generation IEEE 802.16 standard...
Provided by Iowa State University
