- Subscribe to this page:
- RSS
- Email Alert
mobile - wireless communications
(58444 results)-
White Papers
Multihop Diversity in Wideband OFDM Systems: The Impact of Spatial Reuse and Frequency Selectivity
Feb 2008
The goal of this paper is to establish which practical routing schemes for wireless networks are most suitable for wideband systems in the power-limited regime, which is, for example, a...
Provided by University of Notre Dame
-
White Papers
On the Secrecy Capacity of Arbitrary Wiretap Channels
Jan 2009
The authors investigate the fundamental secrecy limits of arbitrary wiretap channels using the information-spectrum approach and they provide a random coding theorem for the secrecy capacity under...
Provided by University of Notre Dame
-
White Papers
Information-Spectrum Methods for Information-Theoretic Security
Feb 2009
The authors investigate the potential of an information-spectrum approach to information-theoretic security. They show how this approach provides conceptually simple yet powerful results that can...
Provided by University of Notre Dame
-
White Papers
An Experimental Framework for the Evaluation of Cooperative Diversity
Feb 2009
Cooperative diversity is the result of relaying among nodes to achieve space diversity in multipath environments that offer limited time and frequency diversity. Although there is now substantial...
Provided by University of Notre Dame
-
White Papers
Adaptive Compress-and-Forward Relaying in Fading Environments With or Without Wyner-Ziv Coding
Feb 2009
Compress-and-Forward is a protocol for transmission over relay networks in which the relay forwards a compressed version of the signal it observes. The compression method used by the relay is...
Provided by University of Notre Dame
-
White Papers
Stability Analysis for Cognitive Radio With Cooperative Enhancements
Jun 2009
This paper deals with protocol design for cognitive cooperative systems with many secondary users. Appropriate relaying improves the throughput of the primary users and can increase the...
Provided by University of Notre Dame
-
White Papers
Multiaccess Channels With State Known to One Encoder: Another Case of Degraded Message Sets
May 2009
The authors consider a two-user state-dependent multi-access channel in which only one of the encoders is informed, non-causally, of the channel states. Two independent messages are transmitted: a...
Provided by University of Notre Dame
-
White Papers
Arbitrary Jamming Can Preclude Secure Communication
Nov 2009
The authors investigate the effect of certain active attacks on the secrecy capacity of wiretap channels by considering arbitrarily varying wiretap channels. They establish a lower bound for the...
Provided by Georgia Institute of Technology
-
White Papers
Noisy Feedback Schemes and Rate-Error Tradeoffs From Stochastic Approximation
Jun 2009
It is known that noiseless feedback does not increase the capacity of memoryless channels. However, such feedback can considerably increase the reliability or reduce the coding complexity of...
Provided by University of Notre Dame
-
White Papers
Cooperative Communication With Feedback Via Stochastic Approximation
Aug 2009
This paper develops cooperative communication strategies based upon linear stochastic approximation algorithms for the Gaussian relay channel with several configurations of perfect and noisy...
Provided by University of Notre Dame
-
White Papers
Cognitive Radio Enhancements for Legacy Networks Using Cooperative Diversity
Sep 2008
Two driving goals for Cognitive Radio (CR) technique are maximizing spectrum utilization and avoiding interference to primary users. In this paper, the authors deal with the CR concept for legacy...
Provided by University of Notre Dame
-
White Papers
A Survey of Implementation Efforts and Experimental Design for Cooperative Communications
Jan 2010
Design and analysis of cooperative communication schemes based upon modeling and simulation exist in large quantities in the research literature. Despite this fact, there have been relatively few...
Provided by University of Notre Dame
-
White Papers
Thresholding for Optimal Data Processing in a Software Defined Radio Kernel
Jan 2010
The authors discuss a developing software-defined radio framework and kernel, Surfer, which, among other changes compared with known current frameworks, moves control of when to process a block...
Provided by University of Notre Dame
-
White Papers
Sequence Detection Algorithms for Dynamic Spectrum Access Networks
Feb 2010
Spectrum sensing is a critical function for enabling Dynamic Spectrum Access (DSA) in wireless networks that utilize cognitive radio. In DSA networks, unlicensed secondary users can gain access to...
Provided by University of Notre Dame
-
White Papers
Sufficient Conditions for Stabilizability Over Gaussian Relay and Cascade Channels
Sep 2010
The authors present sufficient conditions for stabilizability of an unstable linear time invariant scalar system across an additive white Gaussian noise channel, with a relay assisting the...
Provided by University of Notre Dame
-
White Papers
Minimum Delay Communication in Energy Harvesting Systems Over Fading Channels
Feb 2011
The authors consider an energy harvesting wireless system where data is stored in a data buffer and energy is harvested from various sources and stored in an energy buffer. The transmitter tries...
Provided by University of Notre Dame
-
White Papers
Limiting Behavior of Receive Antennae Selection
Feb 2011
In this paper, the authors investigate the limiting behavior of receive antenna selection in Single-Input Multiple-Output (SIMO) wireless systems when the number of receive antennas gets very...
Provided by University of Notre Dame
-
White Papers
Power Allocation in Wireless Systems Subject to Long-Term and Short-Term Power Constraints
Feb 2011
The authors consider several fading channel models for which they aim to maximize ergodic capacity assuming that Channel State Information (CSI) is available at both the receiver and the...
Provided by University of Notre Dame
-
White Papers
Source-Channel Coding Tradeoff in Multiple Antenna Multiple Access Channels
Jun 2011
The authors investigate channel code rates for communication of finite-dimensional analog sources over a multiple-antenna Multiple Access Channel (MAC) so that the average end-to-end distortions...
Provided by University of Notre Dame
-
White Papers
Low-Complexity Incremental Use of Multiple Transmitters in Wireless Communication Systems
Jul 2011
In this paper, the authors develop and analyze low-complexity approaches that they call incremental Multiple-Input Multiple-Output (IMIMO) for exploiting multiple antennas for reliable high-rate...
Provided by University of Notre Dame
-
White Papers
Communications Overhead as the Cost of Constraints
Oct 2011
This paper speculates on a perspective for studying overhead in communication systems that contrasts the traditional viewpoint that overhead is the "Non-data" portion of transmissions. By viewing...
Provided by University of Notre Dame
-
White Papers
On Stability Across a Gaussian Product Channel
Sep 2011
The authors present sufficient conditions for stabilizing a scalar discrete-time LTI plant in the mean squared sense when a sensor transmits the plant state information to a remotely placed...
Provided by University of Notre Dame
-
White Papers
Multiaccess Communication in the Finite Blocklength Regime
Feb 2012
Although real-world communication networks employ coding schemes with blocklengths as low as several hundred symbols, classical coding theorems of information theory rely on blocklengths...
Provided by University of Notre Dame
-
White Papers
Low Latency Relaying Schemes for Next-Generation Cellular Networks
Feb 2012
The reduction in both user and control plane latency is a major goal for next generation (4G) cellular networks, specifically the Long Term Evolution-Advanced (LTE-A) standard. At the same time,...
Provided by University of Notre Dame
-
White Papers
Secondary Access Policies With Imperfect Sensing in Dynamic Spectrum Access Networks
Feb 2012
The authors consider secondary access policies with imperfect sensing in sensing-based dynamic spectrum access networks. Interference caused by both missed detections as well as the primary user's...
Provided by University of Notre Dame
-
White Papers
Picasso: Full Duplex Signal Shaping to Exploit Fragmented Spectrum
Nov 2011
Wireless spectrum is increasingly fragmented due to the growing proliferation of unlicensed wireless devices and piecemeal licensed spectrum allocations. Current radios are ill-equipped to exploit...
Provided by Association for Computing Machinery
-
White Papers
FlexCast: Graceful Wireless Video Streaming
Sep 2011
Video streaming performance on wireless networks is choppy. The culprit is the unpredictable wireless medium, whose fluctuations results in fluctuating throughput and bit errors. Current video...
Provided by Association for Computing Machinery
-
White Papers
The Impact of Infostation Density on Vehicular Data Dissemination
Nov 2010
Vehicle-to-Vehicle and Vehicle-to-Roadside communications are going to become an indispensable part of the modern day automotive experience. For people on the move, vehicular networks can provide...
Provided by Springer Science+Business Media
-
White Papers
Peer-Exchange Schemes to Handle Mismatch in Peer-to-Peer Systems
Apr 2008
A self-organizing peer-to-peer system is built upon an application level overlay, whose topology is independent of an underlying physical network. A well-routed message path in such systems may...
Provided by Springer Science+Business Media
-
White Papers
OnController Initialization in Multivariable Switching Systems
Mar 2012
The authors consider a class of switched systems which consists of a linear MIMO and possibly unstable process in feedback interconnection with a multi-controller whose dynamics switch. It is...
Provided by University of California
-
White Papers
Jump Control of Probability Densities With Applications to Autonomous Vehicle Motion
Sep 2009
The authors investigate the problem of controlling the probability density of the state of a process that is observed by the controller via a fixed but unknown function of the state. The goal is...
Provided by University of California
-
White Papers
Volterra Integral Approach to Impulsive Renewal Systems: Application to Networked Control
Nov 2010
The authors analyze impulsive systems with independent and identically distributed intervals between transitions. Their approach involves the derivation of novel results for Volterra integral...
Provided by Institute of Electrical and Electronics Engineers
-
White Papers
L2-Induced Gains of Switched Systems and Classes of Switching Signals
Sep 2010
This paper addresses the L2-induced gain analysis for switched linear systems. The authors exploit non-conservative necessary and sufficient conditions for the induced gain to lie below a...
Provided by University of California
-
White Papers
Impulsive Systems Triggered by Superposed Renewal Processes
Sep 2010
The authors consider impulsive systems with several reset maps triggered by independent renewal processes, i.e., the intervals between jumps associated with a given reset map are identically...
Provided by University of California
-
White Papers
Quadratic Optimization for Controller Initialization in MIMO Switching Systems
Mar 2010
This paper deals with switching between several linear time-invariant controllers to be used in feedback with a MIMO linear time-invariant (not necessarily stable) plant to be controlled. The...
Provided by University of California
-
White Papers
Stability of Impulsive Systems Driven by Renewal Processes
Mar 2009
Necessary and sufficient conditions are provided for stochastic stability and mean exponential stability of impulsive systems with jumps triggered by a renewal process, that is, the intervals...
Provided by University of California
-
White Papers
Root-Mean-Square Gains of Switched Linear Systems: A Variational Approach
Sep 2007
The authors consider the problem of computing the Root-Mean-Square (RMS) gain of switched linear systems. They develop a new approach which is based on an attempt to characterize the "Worst-Case"...
Provided by University of California
-
White Papers
Optimal Controller Initialization for Switching Between Stabilizing Controllers
Sep 2007
An important class of switched systems consists of those systems built as the feedback interconnection of a plant to be controlled, together with a multi-controller whose dynamics switch. When...
Provided by University of California
-
White Papers
Modeling and Analysis of Stochastic Hybrid Systems
Mar 2011
The author describes a model for Stochastic Hybrid Systems (SHSs) where transitions between discrete modes are triggered by stochastic events. The rate at which these transitions occur is allowed...
Provided by University of California
-
White Papers
Power Supply Synchronization Without Communication
Nov 2011
The authors consider the synchronization of power supplies in an isolated grid with multiple small-to-medium power sources. They show how to achieve a coordinated or synchronized behavior by...
Provided by University of California
-
White Papers
Implementation of Content-Oriented Networking Architecture (CONA): A Focus on DDoS Countermeasure
Feb 2011
In this paper the authors introduce a Content-oriented Networking Architecture (CONA) and describe its implementation on the NetFPGA-OpenFlow platform. CONA seeks to substantiate a content-centric...
Provided by Seoul National University
-
White Papers
Distributed SINR Based Scheduling Algorithm for Multi-Hop Wireless Networks
Oct 2010
The problem of developing high-performance distributed scheduling algorithms for multi-hop wireless networks has seen enormous interest in recent years. The problem is especially challenging when...
Provided by Association for Computing Machinery
-
White Papers
A Cross-Layer Sleep and Rate Adaptation Mechanism for Slotted ALOHA Wireless Sensor Networks
Dec 2010
The spread use of Wireless Sensor Networks (WSNs) in a variety of fields, ranging from the military to environmental protection, has drawn the attention of researchers to this type of networks....
Provided by Seoul National University
-
White Papers
How Can an ISP Merge With a CDN?
Nov 2010
As delivering contents has become the dominant usage of Internet, the efficient content distribution is being one of the hottest research areas in network community. In future network, it is...
Provided by Seoul National University
-
White Papers
Directional Source Grouping for Multi-Agent Itinerary Planning in Wireless Sensor Networks
Dec 2010
As software entities that migrate among nodes, Mobile Agents (MAs) are able to deliver and execute codes for flexible application re-tasking, local processing, and collaborative signal and...
Provided by Seoul National University
-
White Papers
On TCP Throughput and Window Size in a Multihop Wireless Network Testbed
Sep 2007
Although it is well-known that TCP throughput is suboptimal in multihop wireless networks, little performance data is available for TCP in realistic wireless environments. In this paper, the...
Provided by Association for Computing Machinery
-
White Papers
TDM MAC Protocol Design and Implementation for Wireless Mesh Networks
Dec 2008
The authors present the design, implementation, and evaluation of a Time Division Multiplex (TDM) MAC protocol for multi-hop wireless mesh networks using a programmable wireless platform....
Provided by Association for Computing Machinery
-
White Papers
The Impact of Inter-Layer Network Coding on the Relative Performance of MRC/MDC WiFi Media Delivery
Jun 2011
A primary challenge in multicasting video in a wireless LAN is to deal with the client diversity - clients may have different channel characteristics and hence receive different numbers of...
Provided by Association for Computing Machinery
-
White Papers
Designing Coded Feedback for Efficient Network Coding Based Opportunistic Routing
Aug 2009
Opportunistic Routing (OR) is a new routing paradigm for improving throughput in lossy Wireless Mesh Networks (WMNs). In OR, a set of nodes in a belt around a routing path (i.e., the forwarding...
Provided by Purdue University
-
White Papers
XCOR: Synergistic Interflow Network Coding and Opportunistic Routing
Jan 2011
In the past few years, a plethora of new routing protocols have been proposed that improve the throughput of Wireless Mesh Networks (WMNs). Two of the building blocks shown to achieve significant...
Provided by Purdue University
-
White Papers
Radiating Sensor Selection for Distributed Beamforming in Wireless Sensor Networks
Jan 2011
Collaborative beamforming has already demonstrated its potential of significant power savings in distributed sensor networks. In collaborative beamforming, the antennas of the sensor nodes form a...
Provided by Purdue University
-
White Papers
Efficient Online WiFi Delivery of Layered-Coding Media Using Inter-Layer Network Coding
Apr 2011
A primary challenge in multicasting video in a wireless LAN to multiple clients is to deal with the client diversity - clients may have different channel characteristics and hence receive...
Provided by Purdue University
-
White Papers
How to Evaluate Exotic Wireless Routing Protocols?
Oct 2008
The advent of static Wireless Mesh Networks (WMNs) has largely shifted the design goals of wireless routing protocols from maintaining connectivity among routers to providing high throughput. The...
Provided by Purdue University
-
White Papers
On the Feasibility of Bandwidth Estimation in 1x EVDO Networks
Sep 2009
The problem of bandwidth estimation has been extensively studied in the wired Internet and recently, in 802.11 wireless networks, however, no tool has been developed so far for cellular networks....
Provided by Association for Computing Machinery
-
White Papers
Synergic Parallel Compact Finite Automatons for Accelerating Multi-String Matching
Dec 2009
Multi-string matching is a key technique for network security applications like Network Intrusion Detection Systems (NIDS) and anti-virus scanners, where every packet is inspected against tens of...
Provided by Dublin City University
-
White Papers
Kangaroo: Speculative Multi-Pattern Matching for Scalable Deep Packet Inspection
Aug 2010
Multi-pattern matching is a key technique for network security applications like Network Intrusion Detection Systems (NIDSes) and anti-virus scanners, where every packet is inspected against...
Provided by Dublin City University
-
White Papers
Some Foundational Problems in Mobile-Based Services
Sep 2010
The substantial complexity of Mobile-Based Services (MBSes) comes from the need to support flexible policies and provide fault-tolerance while scaling to a large space size, client number and...
Provided by Tsinghua University
-
White Papers
SPC-FA: Synergic Parallel Compact Finite Automaton to Accelerate Multi-String Matching With Low Memory
Oct 2009
Deterministic Finite Automaton (DFA) is well-known for its constant matching speed in worst case, and widely used in multi-string matching, which is a critical technique in high performance...
Provided by Association for Computing Machinery
-
White Papers
Parallel Architecture for High Throughput DFA-Based Deep Packet Inspection
Feb 2010
Multi-pattern matching is a key technique for implementing network security applications such as Network Intrusion Detection/Protection Systems (NIDS/NIPSes) where every packet is inspected...
Provided by Dublin City University
-
White Papers
Independent Parallel Compact Finite Automatons for Accelerating Multi-String Matching
Apr 2010
Multi-string matching is a key technique for implementing network security applications like Network Intrusion Detection Systems (NIDS) and anti-virus scanners. Existing DFA-based research have...
Provided by Tsinghua University
-
White Papers
Cache-Based Scalable Deep Packet Inspection With Predictive Automaton
Apr 2010
Regular expression (Regex) becomes the standard signature language for security and application detection. Deterministic Finite Automata (DFAs) are widely used to perform multiple regex matching...
Provided by Tsinghua University
-
White Papers
StriD2FA: Scalable Regular Expression Matching for Deep Packet Inspection
Jun 2011
Deep Packet Inspection (DPI) has become one of the key components of a Network Intrusion Detection System (NIDS) and it compares packet content against a set of rules written in regular...
Provided by Tsinghua University
-
White Papers
Practical Service Provisioning for Wireless Meshes
Dec 2007
Community Wireless Mesh Networks (WMNs) are increasingly being deployed for providing cheap, low maintenance Internet access. For the successful adoption of WMNs as a last-mile technology, the...
Provided by Association for Computing Machinery
-
White Papers
The Case for FEC-Based Reliable Multicast in Wireless Mesh Networks
Jan 2011
Many important applications in wireless mesh networks require reliable multicast communication. Previously, Forward Error Correction (FEC) techniques have been proved successful for providing...
Provided by Purdue University
-
White Papers
CoCoA: Coordinated Cooperative Localization for Mobile Multi-Robot Ad Hoc Networks
Jan 2011
Mobile robot teams are particularly suited to applications where infrastructure is unavailable or damaged since they can be used to quickly form an infrastructure-less mobile ad hoc network...
Provided by Purdue University
-
White Papers
Mitigating Jamming Attacks in Multi-Radio Wireless Networks
Jan 2011
The wireless jamming attack aims at preventing wireless nodes from accessing the shared wireless medium or from successful reception. Jammers keep the medium busy or cause high radio interference...
Provided by University of Pittsburgh
-
White Papers
Characterizing the IEEE 802.11 Traffic: The Wireless Side
Jan 2011
Many studies on measurement and characterization of wireless LANs have been performed recently. Most of these measurements have been conducted from the wired portion of the network based on wired...
Provided by University of Maryland
-
White Papers
CCACK: Efficient Network Coding Based Opportunistic Routing Through Cumulative Coded Acknowledgments
Dec 2009
The use of random linear Network Coding (NC) has significantly simplified the design of Opportunistic Routing (OR) protocols by removing the need of coordination among forwarding nodes for...
Provided by Purdue University
-
White Papers
Energy-Efficient MAC and Routing Design in Distributed Beamforming Sensor Networks
Dec 2007
A major task of a wireless sensor network is energy-efficient, timely, and robust dissemination of sensor readings back to the sink node. The AIDA project aims to create a new sensor network...
Provided by Association for Computing Machinery
-
White Papers
EEAODR: An Energy-Efficient Ad Hoc On-Demand Routing Protocol for Mobile Ad Hoc Networks
Jan 2009
Mobile Ad hoc NETworks (MANETs) are characterized by random, multi-hop topologies that do not have a centralized coordinating entity or a fixed infrastructure that may change rapidly over time. In...
Provided by John Wiley & Sons
-
White Papers
HighThroughput Multicast Routing Metrics in Wireless Mesh Networks
Jan 2011
The stationary nature of nodes in a mesh network has shifted the main design goal of routing protocols from maintaining connectivity between source and destination nodes to finding high-throughput...
Provided by Purdue University
-
White Papers
Modeling of the Channel-Hopping Anti-Jamming Defense in Multi-Radio Wireless Networks
Jul 2008
Multi-radio (multi-interface, multi-channel) 802.11 and sensor networks have been proposed to increase network capacity and to reduce energy consumption, to name only a few of their applications....
Provided by Association for Computing Machinery
-
White Papers
On Fast and Accurate Detection of Unauthorized Wireless Access Points Using Clock Skews
Sep 2008
The authors explore the use of clock skew of a wireless local area network Access Point (AP) as its fingerprint to detect unauthorized APs quickly and accurately. The main goal behind using clock...
Provided by Association for Computing Machinery
-
White Papers
Radio-Telepathy: Extracting a Secret Key From an Unauthenticated Wireless Channel
Sep 2008
Securing communications requires the establishment of cryptographic keys, which is challenging in mobile scenarios where a key management infrastructure is not always present. In this paper, the...
Provided by Association for Computing Machinery
-
White Papers
Anonymous Networking With Minimum Latency in Multihop Networks
Oct 2008
The problem of security against timing based traffic analysis in multihop networks is considered in this work. In particular, the relationship between the level of anonymity provided and the...
Provided by Institute of Electrical and Electronics Engineers
-
White Papers
NetAuth: Supporting User-Based Network Services
Jun 2008
In User-Based Network Services (UBNS), the process servicing requests from user U runs under U's ID. This enables (operating system) access controls to tailor service authorization to U. Like...
Provided by University of Illinois
-
White Papers
Practical, Distributed Channel Assignment and Routing in Dual-Radio Mesh Networks
Aug 2009
Realizing the full potential of a multi-radio mesh network involves two main challenges: how to assign channels to radios at each node to minimize interference and how to choose high throughput...
Provided by Association for Computing Machinery
-
White Papers
Program Representations for Testing Wireless Sensor Network Applications
Sep 2007
Because of the growing complexity of Wireless Sensor Network applications (WSNs), traditional software development tools are being developed that are specifically designed for their special...
Provided by Association for Computing Machinery
-
White Papers
Clairvoyant: A Comprehensive Source-Level Debugger for Wireless Sensor Networks
Nov 2007
Wireless Sensor Network (WSN) applications are notoriously difficult to develop and debug. This paper describes Clairvoyant which is a comprehensive source-level debugger for wireless, embedded...
Provided by Association for Computing Machinery
-
White Papers
Wire Speed Packet Classification Without TCAMs: A Few More Registers (and a Bit of Logic) Are Enough
Jun 2007
Packet classification is the foundation of many Internet functions such as QoS and security. A long thread of research has proposed efficient software-based solutions to this problem. Such...
Provided by Association for Computing Machinery
-
White Papers
A Concurrency Control Method Based on Commitment Ordering in Mobile Databases
Nov 2011
Disconnection of mobile clients from server, in an unclear time and for an unknown duration, due to mobility of mobile clients, is the most important challenges for concurrency control in mobile...
Provided by Academy & Industry Research Collaboration Center
-
White Papers
Replication Management and Optimistic Replication Challenges in Mobile Environment
Nov 2011
Wireless and mobile communication is an important technology that improves user's daily life and facilitates the development of some new technology such as electronic commerce and mobile commerce....
Provided by Academy & Industry Research Collaboration Center
-
White Papers
A Real-Time Database QoS-Aware Service Selection Protocol for MANET
Nov 2011
The real-time database service selection depends typically to the system stability in order to handle the time-constrained transactions within their deadline. However, applying the real-time...
Provided by Academy & Industry Research Collaboration Center
-
White Papers
Intelligent Data Receiver Mechanism for Wireless Broadcasting System
Nov 2011
Broadcast disk technology has become a popular method for data dissemination in wireless information systems. However, factors such as intentional periodic disconnection by the mobile hosts result...
Provided by Academy & Industry Research Collaboration Center
-
White Papers
Concurrency Control in Mobile Environments: Issues & Challenges
Nov 2011
The use of data services from handheld devices has increased exponentially resulting in several challenges. Transactions requiring the same shared data item may simultaneously perform a write...
Provided by Academy & Industry Research Collaboration Center
-
White Papers
Security Analysis and Delay Evaluation for SIP-Based Mobile Mass Examination System
Mar 2012
IP Multimedia Subsystem (IMS) is considered to be one of the important features in Mobile Next Generation Networks (MNGN). It adds value to the mobile services and applications by integrating...
Provided by Academy & Industry Research Collaboration Center
-
White Papers
Services as Parameter to Provide Best QoS : An Analysis Over WIMAX
Mar 2012
In this paper it is proposed to provide the QoS to the user by using the degradation of service under hostile environment being itself be a parameter to improve the QoS. Here the relation between...
Provided by Academy & Industry Research Collaboration Center
-
White Papers
Novel Component-Based Development Model for SIP-Based Mobile Application
Jan 2012
Universities and Institutions these days' deals with issues related to with assessment of large number of students. Various evaluation methods have been adopted by examiners in different...
Provided by Academy & Industry Research Collaboration Center
-
Whitepapers
Why You Need to Consider Cloud-Based Security in 2012
Apr 2012
Protecting endpoints from various threats is perhaps the single most critical function for any IT department. Given the still voluminous quantity of spam that hits corporate email servers, the...
Provided by Proofpoint
-
White Papers
The Consulting Bill Rate Resource Guide
Apr 2012
What can you, as a business-of-one, charge for your consulting or contracting time? (For the benefit of the aspiring consultants, this is also called a 'bill rate.') While no consultant is ever...
Provided by MBO Partners
-
White Papers
Mobile Multilayer IPsec Protocol
Feb 2010
A mobile user moves around and switches between wireless cells, subnets and domains, it needs to maintain the session continuity. At the same time security of signaling and transport media should...
Provided by International Journal of Engineering and Technology
-
White Papers
A Survey of Fading Models for Mobile Radio Channel Characterization
Mar 2010
Future 3G and 4G mobile communication systems will be required to support wide range of data rates and quality of service matrix. For the efficient design of data link and transport protocols...
Provided by International Journal of Engineering and Technology
-
White Papers
Signal to Interference Ratio Based Handoff Management for Next-Generation Wireless Systems
May 2010
Next-Generation Wireless Systems (NGWS) integrate different wireless networks, each of which is optimized for some specific services such as WLANs, WiMAX, General Packet Radio Service (GPRS) and...
Provided by International Journal of Engineering and Technology
-
White Papers
Analytical Results to Improve the Capacity of a Cellular System in Frequency Selective Rayleigh Fading Channel
Nov 2010
One of the biggest draw back of wireless environment is the limited bandwidth. However, the users sharing this limited bandwidth have been increased considerably by using SDMA technique that can...
Provided by Engg Journals Publications
-
White Papers
Modified AODV Protocol Against Blackhole Attacks in MANET
Dec 2010
Mobile Adhoc NETwork (MANET) consists of a collection of wireless mobile hosts without the required intervention of any existing infrastructure or centralized access point such as base station....
Provided by International Journal of Engineering and Technology
-
White Papers
Improving Quality of Service From TCP/IP Performance Degradation
Mar 2011
TCP is currently the dominate congestion control protocol for the Internet. However, as the Internet evolves into a high-speed wired-cum-wireless hybrid network, performance degradation problems...
Provided by International Journal of Engineering and Technology
-
White Papers
An Integration of Interoperability and Persistency Into GIS Data Analysis for Developing Map Engine
Mar 2011
The use of Geographic Information Systems is increasing rapidly now-a-days. The availability of remotely sensed data is effecting the applications of GIS greatly. Especially, the creation and...
Provided by International Journal of Engineering and Technology
-
White Papers
Reliability Analysis in Wireless Sensor Networks
May 2011
This paper presents a Markov model for reliability using different types of Sensors and spares that replace sensors in case failure occurs. The primary idea in this paper is to address and analyze...
Provided by International Journal of Engineering and Technology
-
White Papers
Trend in Land Use/Land Cover Change Detection by RS and GIS Application
Sep 2011
Knowledge of land use and land cover is important for many planning and management activities and considered as essential element for modeling and understanding the earth as a system. Land cover...
Provided by International Journal of Engineering and Technology
-
White Papers
Results Analysis of IP Address Auto-Configuration in Wireless MANETs
Nov 2011
The main task of an address allocation protocol is to manage the address allocation to the nodes in the ad hoc MANETs. All routing protocols assume nodes to be configured a priori with a unique IP...
Provided by International Journal of Engineering and Technology
-
White Papers
A Modified Profile-Based Location Caching With Fixed Local Anchor for Wireless Mobile Networks
Jan 2012
Profile-Based Location Caching with Fixed Local Anchor (PCFLA) Strategy can reduce the frequent access to the HLR. As a result, the total management cost is minimized in a wireless mobile network....
Provided by Khulna University
-
White Papers
SMS Based Secure Mobile Banking
Jan 2012
M-banking has emerged as one of the main division of m-commerce. Mobile banking services consists of information inquiry, notifications and alerts, applications and payment transfer. Mobile based...
Provided by International Journal of Engineering and Technology
-
White Papers
Attack Detection and Classification of Heterogeneous Wireless Sensors Using Co-Clustering
Mar 2012
In a Wireless Sensor Network a large number of sensors are deployed for the purpose of sensing data and then to bring the data back securely to nearby base stations. The base stations then perform...
Provided by International Journal of Engineering and Technology
-
White Papers
Performance Evaluation of Constant Envelope OFDM Working in 60 GHz Band
Feb 2012
The 60 GHz band is of much interest since this is the band in which a massive amount of spectral space (5 GHz) has been allocated unlicensed worldwide for dense wireless local communications. OFDM...
Provided by University of Pune
-
White Papers
TCP Performance Enhancement in Wireless Mobile Ad Hoc Networks
May 2011
Transmission Control Protocol (TCP) is the dominating end-to-end transport layer protocol which provides secure and reliable data transfer together with some other protocols in the protocol stack....
Provided by Khulna University
-
White Papers
A Selective Aperiodic Checkpointing Approach for VLR Failure Restoration in Wireless Mobile Networks
Dec 2010
This paper proposes a new selective aperiodic checkpointing approach for VLR (Visitor Location Register) failure restoration in wireless mobile networks. In this approach, the VLR data are backed...
Provided by Khulna University
-
White Papers
A New Hashing and Caching Approach for Minimizing Overall Location Management Cost in Next-Generation Wireless Networks
Jun 2010
This paper proposes a New Hashing and Caching strategy (NHC) in order to reduce the overall location management cost in wireless mobile networks. It uses caches whose up-to-date information is...
Provided by Khulna University
-
White Papers
Routing for Wireless Mesh Networks With Multiple Constraints Using Fuzzy Logic
Jan 2012
Since, wireless mesh networks are ad-hoc in nature, many routing protocols used for ad-hoc networks like AODV are also used for wireless mesh networks by considering only the shortest route to...
Provided by International Arab Journal of Information Technology
-
White Papers
Prioritized Heterogeneous Traffic-Oriented Congestion Control Protocol for WSNs
Jan 2012
Due to the availability of multiple sensing units on a single radio board of the modern sensor motes, some sensor networks need to handle heterogeneous traffic within the same application. This...
Provided by International Arab Journal of Information Technology
-
White Papers
Enhanced Junction Selection Mechanism for Routing Protocol in VANETs
Oct 2011
Routing in infrastructure less vehicular ad hoc networks is challenging because of the dynamic network, predictable topology, high speed of nodes, and predictable mobility patterns. This paper...
Provided by COMSATS Institute of Information Technology
-
White Papers
Opportunistic Routing With Congestion Diversity in Wireless Ad-Hoc Networks
Mar 2012
The authors consider the problem of routing packets across a multi-hop network consisting of multiple sources of traffic and wireless links while ensuring bounded expected delay. Each packet...
Provided by University of California
-
White Papers
Secure and Energy-Efficient Data Aggregation in Wireless Sensor Networks
Feb 2012
Data aggregation in intermediate nodes (called aggregator nodes) is an effective approach for optimizing consumption of scarce resources like bandwidth and energy in Wireless Sensor Networks...
Provided by Association for Computing Machinery
-
White Papers
Hypothesis Testing and Decision Theoretic Approach for Fault Detection in Wireless Sensor Networks
Mar 2012
Sensor networks aim at monitoring their surroundings for event detection and object tracking. But due to failure or death of sensors, false signal can be transmitted. In this paper, the authors...
Provided by University of Ottawa
-
White Papers
Algorithms for Wireless Capacity
Mar 2012
In this paper, the authors address two basic questions in wireless communication: First, how long does it take to schedule an arbitrary set of communication requests? Second, given a set of...
Provided by Cornell University
-
White Papers
A Survey of Recent Intrusion Detection Systems for Wireless Sensor Network
May 2011
Security of Wireless Sensor Network (WSN) becomes a very important issue with the rapid development of WSN that is vulnerable to a wide range of attacks due to deployment in the hostile...
Provided by West Bengal University of Technology
-
White Papers
Multiflow Transmission in Delay Constrained Cooperative Wireless Networks
Feb 2012
This paper considers the problem of energy-efficient transmission in multi-flow multi-hop cooperative wireless networks. Although the performance gains of cooperative approaches are well known,...
Provided by University of California
-
White Papers
Belief Consensus Algorithms for Distributed Target Tracking in Wireless Sensor Networks
Feb 2012
In distributed target tracking in Wireless Sensor Networks (WSN), agreement on the target state is usually achieved by the construction and maintenance of a communication path. Such an approach...
Provided by Institute of Electrical and Electronics Engineers
-
White Papers
Sleep Deprivation Attack Detection in Wireless Sensor Network
Feb 2012
Deployment of sensor network in hostile environment makes it mainly vulnerable to battery drainage attacks because it is impossible to recharge or replace the battery power of sensor nodes. Among...
Provided by West Bengal University of Technology
-
White Papers
On the Capacity of Rate-Adaptive Packetized Wireless Communication Links Under Jamming
Apr 2012
Over the last decades, wireless communication proved to be an enabling technology to an increasingly large number of applications. The convenience of wireless and its support of mobility has...
Provided by Northeastern University
-
White Papers
Jam-X: Wireless Agreement Under Interference
Feb 2012
Wireless low-power transceivers used in sensor networks such as IEEE 802.15.4 typically operate in unlicensed frequency bands that are subject to external interference from devices transmitting at...
Provided by University of Duisburg-Essen
