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mobile - wireless communications
(58314 results)-
White Papers
Performance Analysis of Multichannel Medium Access Control Algorithms for Opportunistic Spectrum Access
Jul 2009
Static spectrum assignment, which has been applied to radio frequencies for almost a century, has led to a quasi-scarcity of the spectrum. Therefore, finding a new unassigned frequency slot has...
Provided by Institute of Electrical and Electronics Engineers
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White Papers
Quality of Service Assessment of Opportunistic Spectrum Access: A Medium Access Control Approach
Jan 2009
Opportunistic Spectrum Access (OSA) is a promising new spectrum management approach that will allow coexistence of both licensed and opportunistic users in each spectrum band, potentially...
Provided by Institute of Electrical and Electronics Engineers
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White Papers
Address Autoconfiguration in Wireless Ad Hoc Networks: Protocols and Techniques
Feb 2008
With the advent of smaller devices having higher computational capacity and wireless communication capabilities, the world is becoming completely networked. Although, the mobile nature of these...
Provided by Institute of Electrical and Electronics Engineers
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White Papers
Cognitive Functionality in Next Generation Wireless Networks: Standardization Efforts
Jun 2007
The idea of Cognitive Radio (CR) as an alternative wireless communication paradigm, capable of managing and executing itself in real-time without human intervention, was first proposed by Joseph...
Provided by Delft University of Technology
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White Papers
Radio-Over-Fiber Based Architecture for Seamless Wireless Indoor Communication in the 60 GHz Band
Sep 2007
In order to satisfy the increasing demand of wireless broadband multimedia services, much attention has been paid to the 60 GHz band where as much as 5 GHz of spectrum has been reserved. However,...
Provided by Reed Elsevier
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White Papers
FIST: A Framework for Flexible and Low-Cost Wireless Testbed for Sensor Networks
Nov 2009
Setting up a wireless sensor network for an experiment is both time and effort intensive. Sometimes, the time required to set up the experimental framework is even more than that of the experiment...
Provided by Springer Science+Business Media
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White Papers
A Cognitive Framework for Realizing and Exploiting the Internet of Things Concept
Oct 2011
This paper proposes a cognitive management framework for realizing and exploiting the Internet of Things concept in the Future Internet (FI) era. Cognitive systems offer self-x and learning. A...
Provided by Delft University of Technology
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White Papers
Approximate Service Provisioning in an Invisible Network of the Future
Oct 2011
Communication and specifically networking has brought a huge change in the people lifestyles. Coupled with the increased use of mobile services, more and more population is increasingly being...
Provided by Delft University of Technology
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White Papers
COGMAN: A Cognitive Management Framework to Support Exploitation of the Future Internet
Oct 2011
In this paper, a cognitive management framework is proposed for ensuring exploitation of the Future Internet (FI). Cognitive systems offer self-x and learning. A cognitive system has the ability...
Provided by Delft University of Technology
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White Papers
Neighbor Discovery in 60 GHz Wireless Personal Area Networks
Jul 2010
60GHz radio is a promising technology which can handle the data rate of the order of gigabits-per-second. Hence, it is an attractive candidate for Wireless Personal Area Networks (WPANs). Due to...
Provided by Delft University of Technology
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White Papers
FEW-PNets - A Framework for Emulation of Wireless Personal Networks
Aug 2008
With the advent of miniaturization and higher computing capabilities of wireless devices, there is an exponential rise in the number of devices such as personal digital assistants, etc....
Provided by Institute of Electrical and Electronics Engineers
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White Papers
Performance Measures of Dynamic Spectrum Access Networks
Oct 2011
In this paper, the authors give insight into the performance of Dynamic Spectrum Access Networks (DSAN), analyzing Quality of Detection of Primary User (PU) and DSAN blocking probability, when the...
Provided by Delft University of Technology
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White Papers
Order Statistics for Voice Activity Detection in VoIP
Jun 2010
Real-time voice communication over the Internet has rapidly gained popularity. It is indeed essential to reduce the total bandwidth consumption to efficiently use the available bandwidth for the...
Provided by Institute of Electrical and Electronics Engineers
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White Papers
An Active Access-Point Selection Approach for Dependable Wireless Mesh Networks
Sep 2011
As an inexpensive, flexible, and scalable Internet-access wireless network, the authors have studied the architecture, protocols, and design optimizations of the Wireless Internet-access Mesh...
Provided by World Scientific Publishing
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White Papers
Jump-Stay Rendezvous Algorithm for Cognitive Radio Networks
Jan 2012
Cognitive Radio Networks (CRNs) have emerged as advanced and promising paradigm to exploit the existing wireless spectrum opportunistically. It is crucial for users in CRNs to search for neighbors...
Provided by Institute of Electrical and Electronics Engineers
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White Papers
Cyclic Feature Detection With Sub-Nyquist Sampling for Wideband Spectrum Sensing
Feb 2012
For cognitive radio networks, efficient and robust spectrum sensing is a crucial enabling step for dynamic spectrum access. Cognitive radios need to not only rapidly identify spectrum...
Provided by Institute of Electrical and Electronics Engineers
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White Papers
Weighted Energy Detection for Non-coherent Ultra-Wideband Receiver Design
Feb 2011
For Ultra-WideBand (UWB) impulse radios, non-coherent energy detectors are motivated for their simple circuitry and effective capture of multipath energy. A major performance-degrading factor in...
Provided by Institute of Electrical and Electronics Engineers
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White Papers
Decentralized Sparse Signal Recovery for Compressive Sleeping Wireless Sensor Networks
Jul 2010
This paper develops an optimal decentralized algorithm for sparse signal recovery and demonstrates its application in monitoring localized phenomena using energy-constrained large-scale wireless...
Provided by Institute of Electrical and Electronics Engineers
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White Papers
Optimal Power Control for Cognitive Radio Networks Under Coupled Interference Constraints: A Cooperative Game-Theoretic Perspective
May 2010
Distributed power control is investigated for Cognitive Radio Networks (CRNs) based on a cooperative game-theoretic framework. Taking into consideration both network efficiency and user fairness,...
Provided by Institute of Electrical and Electronics Engineers
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White Papers
Localized Structural Health Monitoring Using Energy-Efficient Wireless Sensor Networks
Jun 2010
This paper presents a localized information processing approach for long-term, online Structural Health Monitoring (SHM) using Wireless Sensor Networks (WSNs). Based on the embedded AR-ARX method,...
Provided by Institute of Electrical and Electronics Engineers
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White Papers
Cramer - Rao Bounds for Hybrid TOA/DOA-Based Location Estimation in Sensor Networks
Aug 2009
This paper derives the Cramer - Rao Bound (CRB) for source location estimation using joint Time-/Direction-Of-Arrival (TOA/DOA) measurements collected in a wireless sensor network setup. Each...
Provided by Institute of Electrical and Electronics Engineers
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White Papers
Maximum Likelihood Multiple Access Timing Synchronization for UWB Communications
Nov 2008
Rapid and reliable timing synchronization is a demanding task in the receiver design for Ultra-WideBand (UWB) communication systems, especially when concurrent multiple access is called for. This...
Provided by Institute of Electrical and Electronics Engineers
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White Papers
Wideband Receiver Design in the Presence of Strong Narrowband Interference
Jul 2008
In the presence of Narrow-Band Interference (NBI), detection of weak wideband signals faces foremost challenges in Analog-to-Digital Conversion (ADC), due to the dynamic range problem encountered...
Provided by Institute of Electrical and Electronics Engineers
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White Papers
Multiple Symbol Differential Detection for UWB Communications
Jun 2010
Multiple Symbol Differential Detection (MSDD) offers high-performance symbol recovery and bypasses training or channel estimation, which are highly desired features in low-power Ultra-WideBand...
Provided by Institute of Electrical and Electronics Engineers
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White Papers
Joint Multi-Source Localization and Environment Perception in Wireless Sensor Networks
Jul 2010
This paper addresses the problem of joint multi-source localization and environment perception in Wireless Sensor Networks (WSNs) based on Received Signal Strength (RSS). Contrary to the...
Provided by Institute of Electrical and Electronics Engineers
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White Papers
Energy-Efficient Decentralized Event Detection in Large-Scale Wireless Sensor Networks
Sep 2009
This paper addresses the problem of decentralized event detection in large-scale Wireless Sensor Networks (WSNs). Comparing with centralized or hierarchical solutions, decentralized algorithms are...
Provided by University of Science and Technology of China
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White Papers
Collaborative Sparse Signal Recovery in Hierarchical Wireless Sensor Networks
Jun 2010
This paper investigates the design choices and implementation schemes for information fusion among cluster heads in a large-scale hierarchical wireless sensor network. Two main issues addressed...
Provided by Institute of Electrical and Electronics Engineers
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White Papers
Compressed Wideband Sensing in Cooperative Cognitive Radio Networks
Dec 2008
In emerging Cognitive Radio (CR) networks with spectrum sharing, the first cognitive task preceding any dynamic spectrum access is the sensing and identification of spectral holes in wireless...
Provided by Institute of Electrical and Electronics Engineers
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White Papers
Gate Sizing for Cell-Library-Based Designs
Jun 2009
With increasing time-to-market pressure and shortening semiconductor product cycles, more and more chips are being designed with library-based methodologies. In spite of this shift, the problem of...
Provided by Institute of Electrical and Electronics Engineers
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White Papers
A Fully Polynomial-Time Approximation Scheme for Timing-Constrained Minimum Cost Layer Assignment
Jul 2009
As VLSI technology enters the nanoscale regime, the interconnect delay becomes the bottleneck of circuit performance. Compared with gate delays, wires are becoming increasingly resistive, making...
Provided by Institute of Electrical and Electronics Engineers
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White Papers
Fast Algorithms for Slew Constrained Minimum Cost Buffering
Jan 2008
As a prevalent constraint, sharp slew rate is often required in circuit design which causes a huge demand for buffering resources. This problem requires ultra-fast buffering techniques to handle...
Provided by Institute of Electrical and Electronics Engineers
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White Papers
Utilizing Redundancy for Timing Critical Interconnect
Jan 2008
Conventionally, the topology of signal net routing is almost always restricted to Steiner trees, either un-buffered or buffered. However, introducing redundant paths into the topology (which leads...
Provided by Texas A&M University
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White Papers
Parallel Hierarchical Cross Entropy Optimization for On-Chip Decap Budgeting
Jun 2010
Decoupling capacitor (decap) placement has been widely adopted as an effective way to suppress dynamic power supply noise. Traditional decap budgeting algorithms usually explore the...
Provided by Association for Computing Machinery
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White Papers
Ultra-Fast Interconnect Driven Cell Cloning for Minimizing Critical Path Delay
Mar 2010
In a complete physical synthesis flow, optimization transforms that can improve the timing on critical paths that are already well-optimized by a series of powerful transforms (timing driven...
Provided by Association for Computing Machinery
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White Papers
Generalized FMD Detection for Spectrum Sensing Under Low Signal-to-Noise Ratio
Feb 2012
Spectrum sensing is a fundamental problem in cognitive radio. The authors propose a function of covariance matrix based detection algorithm for spectrum sensing in cognitive radio network....
Provided by Institute of Electrical and Electronics Engineers
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White Papers
Towards a Large-Scale Cognitive Radio Network Testbed: Spectrum Sensing, System Architecture, and Distributed Sensing
Mar 2012
This paper presents a comprehensive review of the Cognitive Radio Network (CRN) testbed built at TTU. The authors' goals are to use their CRN testbed as a data acquisition tool; to use random...
Provided by Tennessee Technological University
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White Papers
An Anomaly-Based Algorithm to Detect Compromised Nodes in Wireless Sensor Networks
Nov 2007
Wireless sensor networks are typically deployed in unattended and hostile environments which are vulnerable to compromises. An adversary can reprogram the sensors with malicious code to launch an...
Provided by Tennessee State University
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White Papers
A Hidden Markov Model Based Approach to Detect Rogue Access Points
Sep 2008
One of the most challenging security concerns for network administrators is the presence of rogue access points. In this paper, the authors propose a statistical based approach to detect rogue...
Provided by Institute of Electrical and Electronics Engineers
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White Papers
Rogue Access Point Detection by Analyzing Network Traffic Characteristics
Oct 2008
One of the most challenging network security concerns for network administrators is the presence of rogue access points. Rogue access points, if undetected, can be an open door to sensitive...
Provided by Institute of Electrical and Electronics Engineers
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White Papers
PLL Based Time Synchronization in Wireless Sensor Networks
Jun 2009
Time synchronization is a key component in numerous wireless sensor network applications. Most of the current software based time synchronization approaches suffer from communication overhead and...
Provided by Tennessee State University
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White Papers
Distributed Computation of Maximum Lifetime Spanning Subgraphs in Sensor Networks
Sep 2007
The authors present a simple and efficient distributed method for determining the transmission power assignment that maximizes the lifetime of a data-gathering wireless sensor network with...
Provided by Helsinki University of Technology
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White Papers
Lifetime Maximization in Wireless Sensor Networks by Distributed Binary Search
Nov 2007
The authors consider the problem of determining the transmission power assignment that maximizes the lifetime of a data-gathering wireless sensor network with stationary nodes and static...
Provided by Helsinki University of Technology
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White Papers
Balanced Multipath Source Routing
Jul 2007
The authors consider the problem of balancing the traffic load ideally over a wireless multi-hop network. In previous work, a systematic approach to this task was undertaken, starting with an...
Provided by Helsinki University of Technology
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White Papers
Game Theory in Wireless Networks: A Tutorial
Jun 2007
The behavior of a given wireless device may affect the communication capabilities of a neighboring device, notably because the radio communication channel is usually shared in wireless networks....
Provided by EPFL
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White Papers
Analysis of a WDM System for Tanzania
Jun 2009
Internet infrastructures in most places of the world have been supported by the advancement of optical fiber technology, most notably Wavelength Division Multiplexing (WDM) system. Optical...
Provided by University of Sussex
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White Papers
Network-Calculus-Based Performance Analysis for Wireless Sensor Networks
Apr 2009
Recently, Wireless Sensor Network (WSN) has become a promising technology with a wide range of applications such as supply chain monitoring and environment surveillance. It is typically composed...
Provided by KTH - Royal Institute of Technology
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White Papers
Deterministic Worst-Case Performance Analysis for Wireless Sensor Networks
May 2008
Dimensioning wireless sensor networks requires formal methods to guarantee network performance and cost in any conditions. Based on network calculus, this paper presents a deterministic analysis...
Provided by KTH - Royal Institute of Technology
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White Papers
GossiCrypt: Wireless Sensor Network Data Confidentiality Against Parasitic Adversaries
Dec 2007
Resource and cost constraints remain a challenge for wireless sensor network security. In this paper, the authors propose a new approach to protect confidentiality against a parasitic adversary,...
Provided by University of Waterloo
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White Papers
Reconfiguration Strategies for Environmentally Powered Devices: Theoretical Analysis and Experimental Validation
Jul 2007
Environmental energy is becoming a feasible alternative to traditional energy sources for ultra low-power devices such as sensor nodes. These devices can run reactive applications that adapt their...
Provided by Springer Science+Business Media
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White Papers
A Simulation Model for Wireless Sensor Networks Based on TOSSIM
Aug 2007
Wireless Sensor Networks (WSNs) are composed of a large number of very small devices used for biomedical or environmental monitoring applications. These devices measure various natural processes...
Provided by Complutense University of Madrid
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White Papers
Hierarchical Routing in Dynamic -Doubling Networks
Aug 2007
In this paper the authors formulate the problem of routing over dynamic networks with finite doubling dimension. This is motivated by communication in mobile wireless networks, where the...
Provided by EPFL
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White Papers
Least-Cost Opportunistic Routing
Sep 2007
In opportunistic routing, each node maintains a group of candidate relays to reach a particular destination, and transmits packets to any node in this group. If a single candidate relay receives...
Provided by EPFL
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White Papers
Consensus Problem In Wireless Ad Hoc Networks: Addressing the Right Issues
Dec 2007
Solving consensus in wireless ad hoc networks has started to be addressed in several papers. Most of these papers adopt system models developed for wired networks. These models are focused towards...
Provided by University of Texas
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White Papers
Traffic Splitting With Network Calculus for Mesh Sensor Networks
Sep 2007
In many applications of sensor networks, it is essential to ensure that messages are transmitted to their destinations as early as possible and the buffer size of each sensor node is as small as...
Provided by Fudan University
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White Papers
PIIN Suppression Using Random Diagonal Code for Spectral Amplitude Coding Optical CDMA System
Jun 2009
A new code for spectral-amplitude coding optical code-division multiple-access system is proposed called Random Diagonal (RD) code. This code is constructed using code segment and data segment....
Provided by Universiti Malaysia Perlis
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White Papers
Design of Non-Blocking and Rearrangeable Modified Banyan Network With Electro-Optic MZI Switching Elements
Jun 2009
Banyan networks are really attractive for serving as the optical switching architectures due to their unique properties of small depth and absolute signal loss uniformity. The fact has been...
Provided by Malaviya National Institute of Technology
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White Papers
Estimation of Broadcast Probability in Wireless Adhoc Networks
Jun 2009
Most routing protocols (DSR, AODV etc.) that have been designed for wireless ad-hoc networks incorporate the broadcasting operation in their route discovery scheme. Probabilistic broadcasting...
Provided by World Academy of Science, Engineering and Technology
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White Papers
Constrained Global Scheduling of Streaming Applications on MPSoCs
Dec 2009
The authors present a global scheduling framework for Synchronous Data Flow (SDF) streaming applications on MPSoCs, based on optimized computation and contention-free routing. The global...
Provided by KTH Royal Institute of Technology
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White Papers
Adaptive Power Management for the On-Chip Communication Network
Jan 2011
An on-chip communication network is most power efficient when it operates just below the saturation point. For any given traffic load the network can be operated in this region by adjusting...
Provided by University of Amsterdam
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White Papers
Adaptively Reconfigurable Controller for the Flash Memory
Apr 2011
As the continuous development on the capacity and work frequency, Programmable Logic Devices (PLD) especially Field-Programmable Gate Arrays (FPGA) is playing an increasingly important role in...
Provided by KTH Royal Institute of Technology
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White Papers
Multi-Path Routing Metrics for Reliable Wireless Mesh Routing Topologies
Mar 2011
Several emerging classes of applications that run over wireless networks have a need for mathematical models and tools to systematically characterize the reliability of the network. The authors...
Provided by KTH Royal Institute of Technology
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White Papers
Energy-Efficient Multicasting of Scalable Video Streams Over WiMAX Networks
Feb 2011
The Multicast/Broadcast Service (MBS) feature of mobile WiMAX network is a promising technology for providing wireless multimedia, because it allows the delivery of multimedia content to...
Provided by Institute of Electrical and Electronics Engineers
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White Papers
Secure Internet Connectivity for Dynamic Source Routing (DSR) Based Mobile Ad Hoc Networks
Jan 2011
'Secure routing in Mobile Ad hoc networks' and 'Internet connectivity to Mobile Ad hoc networks' have been dealt separately in the past research. This paper proposes a light weight solution for...
Provided by National Institute of Technology Calicut
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White Papers
Interference Reduction Technique in Multistage Multiuser Detector for DS-CDMA System
Jan 2011
This paper presents the results related to the interference reduction technique in multistage multiuser detector for asynchronous DS-CDMA system. To meet the real-time requirements for...
Provided by World Academy of Science, Engineering and Technology
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White Papers
Resource Allocation for OFDMA-Based Cognitive Radio Multicast Networks With Primary User Activity Consideration
May 2010
This paper considers the primary user activity or the subchannel availability in optimally distributing the available resources for an Orthogonal Frequency-Division Multiple-Access (OFDMA)...
Provided by Institute of Electrical and Electronics Engineers
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White Papers
Secure Neighbor Discovery in Wireless Networks: Formal Investigation of Possibility
Mar 2008
Wireless communication enables a broad spectrum of applications, ranging from commodity to tactical systems. Neighbor Discovery (ND), that is, determining which devices are within direct radio...
Provided by Association for Computing Machinery
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White Papers
ATPM: An Energy Efficient MAC Protocol With Adaptive Transmit Power Scheme for Wireless Sensor Networks
Apr 2011
The MAC protocol for wireless sensor networks is different from traditional wireless MACs such as IEEE 802.11. Energy conservation is one of the most important goals, while per-node fairness and...
Provided by Academy Publisher
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White Papers
Stochastic Modeling and Analysis for Environmentally Powered Wireless Sensor Nodes
Jul 2008
Environmental energy is becoming a feasible alternative for many low-power systems, such as wireless sensor nodes. Designing an environmentally powered device faces several challenges: choosing...
Provided by University of Verona
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White Papers
Wireless Sensor Networking for Rain-Fed Farming Decision Support
Aug 2008
Wireless Sensor Networks (WSNs) can be a valuable decision-support tool for farmers. This motivated the deployment of a WSN system to support rain-fed agriculture in India. The authors defined...
Provided by Association for Computing Machinery
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White Papers
Consensus in Wireless Ad Hoc Networks
May 2008
Solving consensus in wireless ad hoc networks has started to be addressed in several papers. Most of these papers adopt system models similar to those developed for wired networks. These models...
Provided by University of Texas
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White Papers
Towards Provable Secure Neighbor Discovery in Wireless Networks
Oct 2008
In wireless systems, Neighbor Discovery (ND) is a fundamental building block: determining which devices are within direct radio communication is an enabler for networking protocols and a wide...
Provided by Association for Computing Machinery
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White Papers
Virtual Infrastructure for Collision-Prone Wireless Networks
Aug 2008
Wireless ad hoc networks pose several significant challenges: devices are unreliable; deployments are unpredictable; and communication is erratic. One proposed solution is Virtual Infrastructure,...
Provided by Association for Computing Machinery
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White Papers
Extending Paxos/LastVoting With an Adequate Communication Layer for Wireless Ad Hoc Networks
Mar 2009
Most papers addressing consensus in wireless ad hoc networks adopt system models similar to those developed for wired networks. These models are focused towards node failures while ignoring link...
Provided by Institute of Electrical and Electronics Engineers
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White Papers
Wireless Social Community Networks: A Game-Theoretic Analysis
Mar 2008
Wireless social community networks formed by users with a Wi-Fi access point have been created as an alternative to traditional wireless networks that operate in the licensed spectrum. By relying...
Provided by Institute of Electrical and Electronics Engineers
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White Papers
Rate-Constrained Collaborative Noise Reduction for Wireless Hearing Aids
Feb 2009
Hearing aids are electronic, battery-operated sensing devices which aim at compensating various kinds of hearing impairments. Recent advances in low-power electronics coupled with progresses made...
Provided by Institute of Electrical and Electronics Engineers
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White Papers
Voice Over IP Technology Development in Offshore Industry: System Dynamics Approach
Jun 2009
Nowadays, offshore's complicated facilities need their own communications requirements. Nevertheless, developing and real-world applications of new communications technology are faced with...
Provided by Iran University of Science and Technology
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White Papers
A General Model for Amino Acid Interaction Networks
Jun 2009
In this paper the authors introduce the notion of interaction network of amino acids of a protein (SSE-IN) and study some of the properties of these networks. The main advantage of this model is...
Provided by World Academy of Science, Engineering and Technology
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White Papers
Dynamic Bayesian Networks Modeling for Inferring Genetic Regulatory Networks by Search Strategy: Comparison Between Greedy Hill Climbing and MCMC Methods
Jun 2009
Using Dynamic Bayesian Networks (DBN) to model genetic regulatory networks from gene expression data is one of the major paradigms for inferring the interactions among genes. Averaging a...
Provided by Brunel University
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White Papers
Chemical Species Concentration Measurement Via Wireless Sensors
Jun 2009
This paper describes studies carried out to investigate the viability of using wireless cameras as a tool in monitoring changes in air quality. A camera is used to monitor the change in colour of...
Provided by Dublin City University
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White Papers
Mimicking Morphogenesis for Robust Behaviour of Cellular Architectures
Jun 2009
Morphogenesis is the process that underpins the self-organised development and regeneration of biological systems. The ability to mimick morphogenesis in artificial systems has great potential for...
Provided by University of Durham
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White Papers
Jamming for Good: A Fresh Approach to Authentic Communication in WSNs
Mar 2009
While properties of wireless communications are often considered as a disadvantage from a security perspective, this paper demonstrates how multipath propagation, a broadcast medium, and frequency...
Provided by Association for Computing Machinery
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White Papers
On Key Agreement in Wireless Sensor Networks Based on Radio Transmission Properties
Sep 2009
Recently, several research contributions have justified that wireless communication is not only a security burden. Its unpredictable and erratic nature can also be turned against an adversary and...
Provided by Institute of Electrical and Electronics Engineers
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White Papers
Secret Keys From Entangled Sensor Motes: Implementation and Analysis
Mar 2010
Key management in wireless sensor networks does not only face typical, but also several new challenges. The scale, resource limitations, and new threats such as node capture and compromise...
Provided by Association for Computing Machinery
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White Papers
SUDOKU: Secure and Usable Deployment of Keys on Wireless Sensors
Dec 2010
Initial deployment of secrets plays a crucial role in any security design, but especially in hardware constrained wireless sensor networks. Many key management schemes assume either manually...
Provided by University of California
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White Papers
Achieving High Lifetime and Low Delay in Very Large Sensors Networks Using Mobile Sinks
Apr 2012
For smaller scale Wireless Sensor Networks (WSN) it has been clearly shown that a single mobile sink can be very beneficial with respect to the network lifetime. Yet, how to plan the trajectories...
Provided by University of Kaiserslautern
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White Papers
Practical Message Manipulation Attacks in IEEE 802.15.4 Wireless Networks
Mar 2012
The authors assess the ability of adversaries to modify the content of messages on the physical layer of wireless networks. In contrast to related work, they consider signal overshadowing to...
Provided by University of Kaiserslautern
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White Papers
Planning the Trajectories of Multiple Mobile Sinks in Large-Scale, Time-Sensitive WSNs
Apr 2011
Controlled sink mobility has been shown to be very beneficial in lifetime prolongation of Wireless Sensor Networks (WSNs) by avoiding the typical hot-spot problem near the sink. Besides striving...
Provided by University of Kaiserslautern
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White Papers
Statistical Response Time Bounds in Randomly Deployed Wireless Sensor Networks
Aug 2010
Response time bounds are important for many application scenarios of Wireless Sensor Networks (WSN). Often, during the planning phase of a WSN its topology is not known. It rather results from a...
Provided by University of Kaiserslautern
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White Papers
Searching for Tight Performance Bounds in Feed-Forward Networks
Dec 2009
Computing tight performance bounds in feed-forward networks under general assumptions about arrival and server models has turned out to be a challenging problem. Recently it was even shown to be...
Provided by University of Kaiserslautern
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White Papers
On the Way to a Wireless Network Calculus - The Single Node Case With Retransmissions
Jan 2010
During the last two decades, network calculus has evolved as a new theory for the performance analysis of networked systems. In contrast to classical queueing theory, it deals with performance...
Provided by University of Kaiserslautern
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White Papers
Node Deployment in Large Wireless Sensor Networks: Coverage, Energy Consumption, and Worst-Case Delay
Nov 2009
Node deployment is a fundamental issue to be solved in Wireless Sensor Networks (WSNs). A proper node deployment scheme can reduce the complexity of problems in WSNs as, for example, routing, data...
Provided by Association for Computing Machinery
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White Papers
Sink Placement Without Location Information in Large-Scale Wireless Sensor Networks
Nov 2009
Wireless Sensor Networks (WSN) comprise a large number of sensor nodes that possess scarce energy supplies. To minimize energy consumption and to consequently extend the lifetime of WSNs, the...
Provided by Association for Computing Machinery
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White Papers
Self-Organized Sink Placement in Large-Scale Wireless Sensor Networks
Jun 2009
The deficient energy supplies of Wireless Sensor Networks (WSNs) drives network designers to optimize energy consumption in various ways. Not only with regard to the energy issue, but also with...
Provided by University of Kaiserslautern
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White Papers
Placing Multiple Sinks in Time-Sensitive Wireless Sensor Networks Using a Genetic Algorithm
Jan 2008
Performance issues in Wireless Sensor Networks (WSNs) play a vital role in many applications. Often the maximum allowable message transfer delay must be bounded in order to enable time-sensitive...
Provided by University of Kaiserslautern
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White Papers
Speeding Multicast by Acknowledgment Reduction Technique (SMART)
Sep 2011
The authors present a novel feedback protocol for wireless broadcast networks that utilize linear network coding. They consider transmission of packets from one source to many receivers over a...
Provided by Massachusetts Institute of Technology
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White Papers
Dynamic Packet Scheduler Optimization in Wireless Relay Networks
Apr 2011
In this paper, the authors investigate the optimal dynamic packet scheduling policy in a Wireless Relay Network (WRN). They model this network by two sets of parallel queues that represent the...
Provided by Carleton University
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White Papers
A Large Family of Multi-Path Dual Congestion Control Algorithms
Apr 2011
The goal of traffic management is efficiently utilizing network resources via adapting of source sending rates and routes selection. Traditionally, this problem is formulated into a utilization...
Provided by Cornell University
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White Papers
MiCi: A Novel Micro-Level Temporal Channel Imploration for Mobile Hosts
Apr 2011
The exponential increase of multimedia services by the mobile users requires seamless connectivity with cost-effective Quality of Service (QoS) provisioning. For providing such on-demand QoS, the...
Provided by Silicon Institute of Technology
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White Papers
Duplication of Key Frames of Video Streams in Wireless Networks
Apr 2011
In this paper technological solutions for improving the quality of video transfer along wireless networks are investigated. Tools have been developed to allow packets to be duplicated with key...
Provided by Samara State Aerospace University
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White Papers
Cross-Layer Architectural Framework for Highly-Mobile Multihop Airborne Telemetry Networks
Nov 2008
Highly dynamic mobile wireless networks present unique challenges to end-to-end communication, particularly caused by the time varying connectivity of high-velocity nodes combined with the...
Provided by Institute of Electrical and Electronics Engineers
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White Papers
Anomaly Localization for Network Data Streams With Graph Joint Sparse PCA
Aug 2011
Determining anomalies in data streams that are collected and transformed from various types of networks has recently attracted significant research interest. Principal Component Analysis (PCA) has...
Provided by Association for Computing Machinery
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White Papers
Carving Secure Wi-Fi Zones With Defensive Jamming
May 2012
With rampant deployment of wireless technologies such as WLAN, information leakage is increasingly becoming a threat for its serious adopters such as enterprises. Research on antidotes has been...
Provided by Association for Computing Machinery
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White Papers
A Toolbox to Explore the Interaction of Adaptive Jamming and Anti-Jamming
Feb 2012
Jamming has long been a problem in wireless communications. Recently, adaptive jamming and anti-jamming techniques have been proposed which aim to use feedback to better perform their task. For an...
Provided by Carnegie Mellon University
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White Papers
Jamming-Resistant Distributed Path Selection on Wireless Mesh Networks
Feb 2012
Wireless mesh network is an emerging network architecture which have been actively standardized for the last few years. Because of its flexible network architecture, wireless mesh network can...
Provided by Carnegie Mellon University
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White Papers
Mitigation of Periodic Jamming in a Spread Spectrum System by Adaptive Filter Selection
Jan 2012
Jamming has long been a problem in wireless communication systems. Traditionally, defense techniques have looked to raise the cost of mounting an equally effective jamming attack. One technique to...
Provided by Carnegie Mellon University
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White Papers
Survivable Smart Grid Communication: Smart-Meters Meshes to the Rescue
Oct 2011
Smart grids are critical cyber-physical infrastructures in the world now. Since these infrastructures are prone to large scale outages due to disasters or faults, a resilient and survivable...
Provided by Carnegie Mellon University
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White Papers
High Performance Vehicular Connectivity With Opportunistic Erasure Coding
May 2012
Motivated by poor network connectivity from moving vehicles, the authors develop a new loss recovery method called Opportunistic Erasure Coding (OEC). Unlike existing erasure coding methods, which...
Provided by Microsoft
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White Papers
Proactive Seeding for Information Cascades in Cellular Networks
Jul 2011
In today's Internet, Online Social Networks (OSNs) play an important role in informing users about content. At the same time, mobile devices provide ubiquitous access to this content through the...
Provided by Politecnico di Torino
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White Papers
Walking on a Graph With a Magnifying Glass: Stratified Sampling Via Weighted Random Walks
Jun 2011
The authors' objective is to sample the node set of a large unknown graph via crawling, to accurately estimate a given metric of interest. They design a random walk on an appropriately defined...
Provided by Institute of Electrical and Electronics Engineers
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White Papers
Error and Attack Tolerance of Layered Complex Networks
Aug 2007
Many complex systems may be described by not one but a number of complex networks mapped on each other in a multi-layer structure. Because of the interactions and dependencies between these...
Provided by American Physical Society
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White Papers
Netscope: Practical Network Loss Tomography
Dec 2009
The authors present Netscope, a tomographic technique that infers the loss rates of network links from unicast end-to-end measurements. Netscope uses a novel combination of first- and second-order...
Provided by University of Adelaide
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White Papers
Achieving Maximal Path Diversity in Low-Delay Application-Level Multicast
Aug 2009
Given the stringent delay requirements and capacity constraints of the interactive ALM, it is (usually) still possible to create a system with a high path diversity at both the overlay and the IP...
Provided by EPFL
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White Papers
Coloring Unstructured Wireless Multi-Hop Networks
Aug 2009
Wireless networks have become omnipresent; there are different architectures available, e.g., GSM-driven mobile phones, or laptops equipped with 802.11 WLAN. A challenging network architectures...
Provided by Association for Computing Machinery
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White Papers
Multipath Routing and Dual Link Failure Recovery in IP Networks Using Three Link-Independent Trees
Nov 2011
The authors develop an approach for disjoint multipath routing and fast recovery in IP networks that guarantees recovery from arbitrary two link failures. They employ three link-independent trees,...
Provided by University of Arizona
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White Papers
Resilient Multipath Routing With Independent Directed Acyclic Graphs
Feb 2010
In this paper, the authors introduce the concept of Independent Directed Acyclic Graphs (IDAGs) to achieve resilient multipath routing. Link-independent (Node-independent) DAGs satisfy the...
Provided by University of Arizona
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White Papers
COPS: An Efficient Content Oriented Publish/Subscribe System
Jun 2011
Content-Centric Networks (CCN) provide substantial flexibility for users to obtain information without regard to the source of the information or its current location. Publish/subscribe (pub/sub)...
Provided by University of Goettingen, Germany
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White Papers
Pre-Congestion Notification-Based Flow Management in MPLS-Based DiffServ Networks
Nov 2009
Recent trends in applications require per-flow treatment instead of the packet-based treatment inherent in the present day Internet. This requirement is analogous to trying to make a phone call in...
Provided by University of Goettingen, Germany
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White Papers
An Encoding Method to Signal 3 States With a Single PCN Bit
Mar 2009
Pre-Congestion Notification (PCN) is currently being developed by the IETF to provide admission control in DiffServ networks for non-elastic flows. Various marking schemes are being proposed as...
Provided by University of Goettingen, Germany
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White Papers
Performance Study of the NSIS QoS-NSLP Protocol
Aug 2008
This paper presents an evaluation of the Quality of Service Signalling Layer Protocol (QoS-NSLP) of the NSIS (Next Steps In Signalling) protocol suite. The QoS-NSLP in combination with the NSIS...
Provided by University of Goettingen, Germany
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White Papers
Segment Based Inter-Networking to Accommodate Diversity at the Edge
Feb 2011
In this paper, the authors introduce Tapa, a network architecture that accommodates diversity at the network edge: different access networks, heterogeneous edge devices, and rich applications and...
Provided by Carnegie Mellon University
