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Institute of Electrical & Electronic Engineers
(11420 results)-
Whitepapers
Distortion-Resilient Routing for Video Flows in Wireless Multi-Hop Networks
October 3, 2012, 12:00am PDT
Traditional routing metrics designed for wireless networks are application agnostic. In this paper, the authors consider a wireless network where the application flows consist of video traffic....
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Whitepapers
On Link Estimation in Dense RPL Deployments
September 20, 2012, 12:00am PDT
The Internet of Things vision foresees billions of devices to connect the physical world to the digital world. Sensing applications such as structural health monitoring, surveillance or smart...
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Whitepapers
When the Cure Is Worse Than the Disease: The Impact of Graceful IGP Operations on BGP
July 27, 2012, 12:00am PDT
Network upgrade, performance optimization and traffic engineering activities often force network operators to adapt their IGP configuration. Recently, several techniques have been proposed to...
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Whitepapers
Lossless Migrations of Link-State IGPs
April 5, 2012, 12:00am PDT
Network-wide migrations of a running network, such as the replacement of a routing protocol or the modification of its configuration, can improve the performance, scalability, manageability, and...
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Whitepapers
Outage Probability in Arbitrarily-Shaped Finite Wireless Networks
April 23, 2013, 12:00am PDT
This paper analyzes the outage performance in finite wireless networks. Unlike most prior works, which either assumed a specific network shape or considered a special location of the reference...
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Whitepapers
Particle Filters for Joint Timing and Carrier Estimation: Improved Resampling Guidelines and Weighted Bayesian Cram�r-Rao Bounds
May 1, 2012, 12:00am PDT
This paper proposes a framework for joint blind timing and carrier offset estimation and data detection using a Sequential Importance Sampling (SIS) particle filter in Additive White Gaussian...
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Whitepapers
Timing and Carrier Synchronization With Channel Estimation in Multi-Relay Cooperative Networks
February 1, 2012, 12:00am PST
Multiple distributed nodes in cooperative networks generally are subject to Multiple Carrier Frequency Offsets (MCFOs) and Multiple Timing Offsets (MTOs), which result in time varying channels and...
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Whitepapers
Connectivity of Three Dimensional Wireless Sensor Networks Using Geometrical Probability
January 30, 2013, 12:00am PST
This paper investigates the connectivity properties of three dimensional wireless sensor network in which N nodes are independently and uniformly (i.u.d.) distributed either on the surface of a...
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Whitepapers
Concentration Uncertainty Principles for Signals on the Unit Sphere
September 4, 2012, 12:00am PDT
The uncertainty principle is an important and powerful tool, with many applications in signal processing. This paper presents two concentration uncertainty principles for signals on the sphere...
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Whitepapers
Conjugate Gradient Algorithm for Extrapolation of Sampled Bandlimited Signals on the 2-Sphere
September 4, 2012, 12:00am PDT
In this paper, the authors consider the problem of signal extrapolation for discrete (i.e., sampled) signals on the sphere. They propose conjugate gradient based algorithm for estimating a signal...
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Whitepapers
Optimal Trade-Off Between Power Saving and Qos Provisioning for Multicell Cooperation Networks
February 1, 2013, 12:00am PST
Multicell cooperation is emerging as a promising wireless communication technique to significantly improve the performance of cellular networks in terms of the coverage of high-data-rate services...
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Whitepapers
Distance Distributions in Regular Polygons
January 15, 2013, 12:00am PST
This paper derives the exact cumulative density function of the distance between a randomly located node and any arbitrary reference point inside a regular L-sided polygon. Using this result, the...
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Whitepapers
A MAC-Layer Adaptation Algorithm Based on TCP Control Segment in Wireless LANs
September 8, 2007, 12:00am PDT
Due to the link characteristics of wireless channel, the performance of TCP will decrease in WLAN networks. In this paper, the adaptable parameter of 802.11 MAC-Layer is analyzed and the...
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Whitepapers
Prudent Practices for Designing Malware Experiments: Status Quo and Outlook
April 13, 2012, 12:00am PDT
Malware researchers rely on the observation of malicious code in execution to collect datasets for a wide array of experiments, including generation of detection models, study of longitudinal...
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Whitepapers
Security Aspects of the In-Vehicle Network in the Connected Car
June 9, 2011, 12:00am PDT
In this paper, the authors briefly survey the research with respect to the security of the connected car, and in particular its in-vehicle network. The aim is to highlight the current state of the...
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Whitepapers
Distributed Routing Algorithms to Manage Power Flow in Agent-Based Active Distribution Network
October 19, 2010, 12:00am PDT
The current transition from passive to active electric distribution networks comes with problems and challenges on bi-directional power flow in the network and the uncertainty in the forecast of...
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Whitepapers
Near Optimum Power Control Under Fairness Constraints in CoMP Systems
October 27, 2009, 12:00am PDT
The authors consider the problem of setting the uplink Signal-to-Noise-and-Interference (SINR) target and allocating transmit powers for mobile stations in multicell spatial multiplexing wireless...
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Whitepapers
A Mapping of Wireless Network Boundaries Using Localised Alpha-Shapes
October 27, 2009, 12:00am PDT
Intuitively, many wireless and sensing applications benefit from knowledge of network boundaries. Many virtual coordinate constructions rely on the furthest set of nodes as beacons. Network edges...
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Whitepapers
Joint Coding/Routing Optimization for Correlated Sources in Wireless Visual Sensor Networks
October 27, 2009, 12:00am PDT
This paper studies a joint coding/routing optimization between network lifetime and rate-distortion, by applying information theory to wireless visual sensor networks for correlated sources....
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Whitepapers
On Handover Procedure With Data Forwarding for Reducing Buffered User Data in Base Stations
October 27, 2009, 12:00am PDT
Network-based localized mobility management is a promising approach for seamless migration of mobile network operators to service provisioning with multiple access network technologies. The...
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Whitepapers
Conflict Resolution by Matrix Reordering for DVB-T2 LDPC Decoders
October 27, 2009, 12:00am PDT
Layered decoding is known to provide efficient and high-throughput implementation of LDPC decoders. However, the implementation of the layered architecture is not always straightforward because of...
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Whitepapers
Minimum-Cost Implementation of Traffic Information System Over Wireless Mesh Network
October 27, 2009, 12:00am PDT
As the traffic situations on highways and streets become more variable and more complex every day, the deployment of a Traffic Information System (TIS) becomes inevitable. In this paper, the...
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Whitepapers
LDPC Codes for Physical Layer Security
October 27, 2009, 12:00am PDT
It was proved by Shannon in that information-theoretically secure communication is possible only if the communicating parties, say Alice and Bob, share a secret key whose entropy is larger or...
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Whitepapers
AECID Fingerprinting Positioning Performance
October 27, 2009, 12:00am PDT
The paper presents results from a field trial of the Adaptive Enhanced Cell ID (AECID) fingerprinting positioning method that has been implemented by Ericsson AB for the GSM cellular system. The...
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Whitepapers
A Geometry-Based Stochastic Model for Wideband MIMO Mobile-to-Mobile Channels
October 27, 2009, 12:00am PDT
In this paper, based on the Tapped Delay Line (TDL) structure, the authors propose a Geometry-Based Stochastic Model (GBSM) for wideband Multiple-Input Multiple-Output (MIMO) Mobile-To-Mobile...
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Whitepapers
Achieving Near-Optimal Detection Using Adaptive Joint Combination of MLD and MMSE-SIC Over Spatially Correlated MIMO Channels
October 27, 2009, 12:00am PDT
The authors develop an efficient hard-detector for Multiple-Input Multiple-Output (MIMO) channels, which adaptively combines Maximum-Likelihood Detection (MLD) and Minimum-Mean-Square-Error (MMSE)...
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Whitepapers
Iterative Node Deployment in an Unknown Environment
October 27, 2009, 12:00am PDT
The authors consider the problem of deploying relay nodes to achieve connectivity with minimum cost in a sensor network of unknown radio propagation characteristics. For a network where a certain...
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Whitepapers
Cooperative Spectrum Sensing With Dynamic Threshold Adaptation
October 27, 2009, 12:00am PDT
Spectrum sensing is a key enabling technology of cognitive radio. Reliable detection increases access opportunity to temporarily unused bands and prevents harmful interference to the licensed...
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Whitepapers
Irregular Sensing Range Detection Model for Coverage Based Protocols in Wireless Sensor Networks
October 27, 2009, 12:00am PDT
In order to optimize the performance of wireless sensor networks, based on the Boolean Sensing Model (BSM) many coverage preserving protocols have been proposed; however, BSM model is too...
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Whitepapers
Robust Beamforming Design: From Cognitive Radio MISO Channels to Secrecy MISO Channels
October 27, 2009, 12:00am PDT
This paper studies the robust beam-forming design problem for a Multiple-Input Single-Output (MISO) secrecy channel with a single-antenna eavesdropper. Due to the illegal nature, the eavesdropper...
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Whitepapers
An Experimental Evaluation of the Computational Cost of a DPI Traffic Classifier
October 27, 2009, 12:00am PDT
A common belief in the scientific community is that traffic classifiers based on Deep Packet Inspection (DPI) are far more expensive in terms of computational complexity compared to statistical...
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Whitepapers
Joint Power Allocation and Relay Selection in Cooperative Networks
October 27, 2009, 12:00am PDT
In this paper, the authors study the joint power allocation and relay selection problem for multi-user Amplify-and-Forward (AF) cooperative networks. To increase the system's spectral efficiency...
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Whitepapers
Time-Critical Data Dissemination in Cooperative Peer-to-Peer Systems
October 27, 2009, 12:00am PDT
How to rapidly disseminate a large-sized file to many recipients is a fundamental problem in many applications, such as updating software patches and distributing large scientific data sets. In...
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Whitepapers
Communicating Correlated Gaussian Sources Over Gaussian Z Interference Channels
October 27, 2009, 12:00am PDT
In this paper, the authors consider transmission of two correlated Gaussian sources to two receivers through a two-user Gaussian Z Interference Channel (Z IC). To facilitate their study, they...
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Whitepapers
Anomaly-Based Identification of Large-Scale Attacks
October 27, 2009, 12:00am PDT
Large-scale attacks like Distributed Denial-of-Service (DDoS) attacks still pose unpredictable threats to the Internet infrastructure and Internet-based business. Thus, many attack detection...
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Whitepapers
Exploiting the Diversity Gain of Transmitter I/Q Imbalance in Single-Antenna OFDM Systems
October 27, 2009, 12:00am PDT
Zero-IF architecture is a competitive alternative to the conventional super-heterodyne architecture for RF-to baseband conversion in OFDM systems. Despite its advantages of low cost and high...
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Whitepapers
Dynamic Routing of Connections With Known Duration in WDM Networks
October 27, 2009, 12:00am PDT
Recently, new solutions for automatized management in optical networks promise to allow customers to specify on-demand the terms of the Service Level Agreement (SLA) to be guaranteed by the...
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Whitepapers
Diversity Combining for Asymmetrically Clipped Optical OFDM in IM/DD Channels
October 27, 2009, 12:00am PDT
This paper looks at the problem of performance enhancement for Orthogonal Frequency-Division Multiplexing (OFDM) transmission in Intensity Modulated, Direct Detected (IM/DD) optical systems. Due...
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Whitepapers
Experimental Evaluation of PCE-Based Batch Provisioning of Grid Service Interconnections
October 27, 2009, 12:00am PDT
If dynamic bandwidth-guaranteed connections between distributed services (e.g., grid services) are provisioned through a centralized system, the policy to serve connection requests might heavily...
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Whitepapers
An Optical Access Network System Without a Power Supply Using Blind Speech Separation and a Loopback Technique
October 27, 2009, 12:00am PDT
This paper proposes an optical access system that enables voice communication services to continue when a power failure occurs. In particular, the authors propose applying a digital signal...
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Whitepapers
Performance Analysis and Evaluation of H.264 Video Streaming Over Multi-Hop Wireless Networks
October 29, 2008, 12:00am PDT
Video streaming has become the application that drives the Internet to a new height. In this paper, the authors analyze and evaluate the performance of H.264-based video streaming over multi-hop...
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Whitepapers
Cross-Layer Cooperative Triple Busy Tone Multiple Access for Wireless Networks
October 29, 2008, 12:00am PDT
In this paper, with the cross-layer design principle, a novel Cooperative Triple Busy Tone Multiple Access (CTBTMA) scheme is proposed for wireless networks to achieve cooperative diversity gain....
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Whitepapers
Delay Analysis of Aloha Network
October 29, 2008, 12:00am PDT
The Aloha network has been studied extensively since the pioneer work by Abramson. Prior work on the Aloha network has primarily focused on its overall system throughput. Many investigations...
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Whitepapers
Throughput Analysis of Wireless Relay Slotted ALOHA Systems With Network Coding
October 29, 2008, 12:00am PDT
This paper deals with a simple but essential two-hop wireless relay network employing network coding and a slotted ALOHA protocol. Network coding is a recent and highly regarded technology for...
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Whitepapers
A Distributed Multi-User MIMO MAC Protocol for Wireless Local Area Networks
October 29, 2008, 12:00am PDT
Multi-user Multiple-Input Multiple-Output (MIMO) systems have been emerging and attracting considerable attention recently for its potential to substantially improve system capacity via space...
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Whitepapers
Self-Propagate Mal-Packets in Wireless Sensor Networks: Dynamics and Defense Implications
October 29, 2008, 12:00am PDT
In this paper, based on the authors' proposed mal-packet self-propagation models in wireless sensor networks, they use TOSSIM to study their propagation dynamics. They also present a preliminary...
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Whitepapers
Trust-Based Fast Authentication for Mobile IPv6 Networks
October 29, 2008, 12:00am PDT
Trust relationship among multiple domains is the basis for inter-domain fast authentication. This paper proposes a fast authentication method combining inter-domain trust relationship for wireless...
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Whitepapers
Distributed Key Management with Protection Against RSU Compromise in Group Signature Based VANETs
October 29, 2008, 12:00am PDT
The group signature based security scheme is a promising approach to provision privacy in Vehicular Ad hoc NETworks (VANETs). In this paper, the authors propose a novel distributed key management...
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Whitepapers
Closed-Loop Modeling of the Frame Collision Probability Under the IEEE 802.11b DCF
October 29, 2008, 12:00am PDT
The frame collision probability is an important parameter of the performance modeling of the IEEE 802.11b DCF. This probability has long been assumed to be independent to the medium access...
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Whitepapers
Analysis of CSMA/CA Systems Under Carrier Sensing Error: Throughput, Delay and Sensitivity
October 29, 2008, 12:00am PDT
In this paper, the performance of the Carrier Sense Multiple Access/ Collision Avoidance (CSMA/CA) protocol under the presence of carrier sensing error is analyzed. Based on the authors' previous...
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Whitepapers
Delay Analysis for Wireless Local Area Networks With Multipacket Reception Under Finite Load
October 29, 2008, 12:00am PDT
To date, most analysis of WLANs has been focused on their operation under saturation condition. This paper is an attempt to understand the fundamental performance of WLANs under unsaturated...
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Whitepapers
An Analytical Model of the TXOP Scheme With Heterogeneous Classes of Stations
October 29, 2008, 12:00am PDT
The Enhanced Distributed Channel Access (EDCA) protocol has been proposed to support differentiated Quality-of-Service (QoS) of Wireless Local Area Networks (WLANs). EDCA introduces a promising...
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Whitepapers
Side Effects of Ambient Noise Immunity Techniques on Outdoor IEEE 802.11 Deployments
October 29, 2008, 12:00am PDT
A very common conclusion of many experimental studies about IEEE 802.11 outdoor network deployments is that their poor performance results derive from the unfavorable interference and multi-path...
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Whitepapers
Bandwidth Differentiation and Throughput Maximization in IEEE 802.11e WLAN
October 29, 2008, 12:00am PDT
While throughput maximization and service differentiation are two critical issues in Wireless Local Area Networks (WLANs), both are separately investigated in most existing work. This paper, from...
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Whitepapers
Tradeoff Between CPAN Size and the Number of Working Channels
October 29, 2008, 12:00am PDT
Cognitive Personal Area Networks build the available channel map by using cooperative sensing of primary channels by piconet members. Number of primary channels is usually larger than the number...
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Whitepapers
QoS-Aware Channel Selection in Cognitive Radio Networks: A Game-Theoretic Approach
October 29, 2008, 12:00am PDT
In a cognitive radio wireless network, each node can sense and opportunistically access the under-utilized spectrums in the primary system. Since, the unoccupied spectrum is location-dependent and...
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Whitepapers
Dynamic Control Channel Assignment in Cognitive Radio Networks Using Swarm Intelligence
October 29, 2008, 12:00am PDT
In recent years, a variety of algorithms for cognitive radio networks have been proposed. Many of these algorithms rely on the exchange of control information among the cognitive radio nodes and...
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Whitepapers
Orthogonal Wavelet Based Dynamic Pulse Shaping for Cognitive Ultra-Wideband Communications
October 29, 2008, 12:00am PDT
In order to achieve efficient Dynamic Spectrum Access (DSA) in Cognitive Ultra-WideBand (C-UWB) systems, an orthogonal wavelets based dynamic pulse shaping method is proposed to obtain pulses...
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Whitepapers
Cognitive Radio: How to Maximally Utilize Spectrum Opportunities in Sequential Sensing
October 29, 2011, 12:00am PDT
This paper investigates the problem of maximally utilizing the spectrum opportunities in cognitive radio networks with multiple potential channels. In particular, the optimal sensing order problem...
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Whitepapers
Channel Estimation Using Gaussian Approximation in a Factor Graph for QAM Modulation
October 29, 2008, 12:00am PDT
Joint channel estimation and decoding using belief propagation on factor graphs requires the quantization of probability densities since continuous parameters are involved. The authors propose to...
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Whitepapers
Performance of Constrained Blind Adaptive DS-CDMA UWB Multiuser Detector in Multipath Channel With Narrowband Interference
October 29, 2008, 12:00am PDT
In this paper, the authors derive and propose constrained blind DS-CDMA UWB multiuser detection algorithm to suppress the Multi Access Interference (MAI) in multipath channels, and studied its bit...
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Whitepapers
Complexity Reduction of High-Performance Frequency Domain Equalization for CPM
October 29, 2008, 12:00am PDT
Continuous Phase Modulations (CPM) have a perfectly constant envelope and are inherently robust against analog front-end non-idealities. Therefore, they have recently been proposed for several...
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Whitepapers
Enhanced UWB Indoor Tracking Through NLOS TOA Biases Estimation
October 29, 2008, 12:00am PDT
Reliable range-based tracking using Ultra-WideBand (UWB) radio signals is traditionally problematic in indoor environments. It is indeed widely admitted that Non Line-Of-Sight (NLOS) channel...
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Whitepapers
Wireless Positioning Based on a Segment-Wise Linear Approach for Modeling the Target Trajectory
October 29, 2008, 12:00am PDT
Positioning solutions in infrastructure-based wireless networks generally operate by exploiting the channel information of the links between the Wireless Devices and fixed networking Access...
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Whitepapers
Pseudo Target Dynamic Feasible Region Constraint Location Method Using Single Observer in NLOS Environment
October 29, 2008, 12:00am PDT
A location method aiming at suppressing Non-Line Of Sight (NLOS) errors using single observer is proposed, which is named by Pseudo-Target Dynamic Feasible Region Constraint (PTDFRC) method. The...
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Whitepapers
Low-Overhead Decentralized Relay Assignment for Cooperative Diversity
October 29, 2008, 12:00am PDT
The authors study the relay assignment problem for cooperative diversity using a wireless network setting in which the terminals (nodes) are randomly distributed. Specifically, they develop...
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Distributed Partner Choice for Energy Efficient Cooperation in a Wireless Sensor Network
October 29, 2008, 12:00am PDT
Cooperative diversity can be applied to energy-constrained wireless sensor networks to significantly reduce node energy consumption. However, cooperation partners must be carefully selected and...
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Whitepapers
Cooperative Relaying With Imperfect Channel State Information
October 29, 2008, 12:00am PDT
The authors consider relay cooperation with imperfect Channel State Information (CSI) in the downlink of wireless networks. In particular, they consider a two-phase transmission where in the first...
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Whitepapers
Cooperative Networks With Limited Feedback
October 29, 2008, 12:00am PDT
In this paper, the authors propose a limited feedback scheme to minimize the outage probability for a wireless cooperative decode-and-forward network. Specifically, based on the instantaneous...
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Adaptive Soft Frequency Reuse for Inter-Cell Interference Coordination in SC-FDMA Based 3GPP LTE Uplinks
October 29, 2008, 12:00am PDT
This paper proposes a decentralized adaptive soft frequency reuse scheme for the uplink of 4G Long-Term Evolution (LTE) systems. While Universal Frequency Reuse (UFR) is being targeted for next...
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Receiver-Cooperation: Network Coding and Distributed Scheduling
October 29, 2008, 12:00am PDT
The authors study network-coded receiver cooperation for a wireless system comprising a remote sender and a set of local receivers. Network codes based on GF(2q) randommixing are complex and prone...
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Whitepapers
Throughput Modeling of Large-Scale 802.11 Networks
October 29, 2008, 12:00am PDT
The success of dynamic spectrum access through simple listen-before-talk etiquettes has made way for opening up the spectrum. However, many problems still remain in this kind of networks. Stations...
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Asymptotic Throughput in Wireless Multicast OFDM Systems
October 29, 2008, 12:00am PDT
With the proliferation of wireless multimedia applications, multicast/broadcast has been recognized as an efficient technique to transmit a large volume of data to multiple mobile stations at the...
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Analysis of Multicast and Unicast Integrated Multiclass Service Provision in Cellular Networks
October 29, 2008, 12:00am PDT
The concept of Logical Service Provision Number (LSPN) is proposed to evaluate the service provision capacity in multicast and unicast integrated multiclass service cellular networks. The tradeoff...
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Whitepapers
Generalized CSMA/CA Protocol for OFDMA Systems
October 29, 2008, 12:00am PDT
In this paper, the authors present a multi-channel Carrier Sense Multiple Access with Collision Avoidance (CSMA/CA) protocol for Orthogonal Frequency Division Multiple Access (OFDMA) systems. The...
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Turbo Frequency Domain Equalization for Single Carrier Space-Time Block Coded Transmissions
October 29, 2008, 12:00am PDT
In this paper, the authors propose a linear Minimum Mean Square Error (MMSE)-based turbo Frequency Domain Equalization (FDE) scheme for single carrier Space-Time Block Coded (STBC) transmissions....
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Whitepapers
Performance Analysis of Metamaterial Substrate Based MIMO Antenna Arrays
October 29, 2008, 12:00am PDT
A rectangular patch antenna array for MIMO communications was simulated on a magnetic permeability enhanced metamaterial. The performance of this antenna array was studied relative to a similar...
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Multi-Stage Iterative Antenna Training for Millimeter Wave Communications
October 29, 2008, 12:00am PDT
The authors study 60 GHz millimeter wave communication systems employing SVD based transmit precoding and receive combining, and propose a multi-stage iterative method in training the antenna...
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Whitepapers
Dirty Paper Coding Aided Multihop Cellular Networks: Architecture and Resource Allocation Framework
October 29, 2008, 12:00am PDT
Most existing works on Orthogonal Frequency Division Multiple Access (OFDMA) multihop cellular networks have assumed half-duplex relay, which suffers from spectral inefficiency since it requires...
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Whitepapers
Position Based Unequal Error Protection for Image Transmission With Energy Constraint Over Multirate XPD MIMO Sensor Networks
October 29, 2008, 12:00am PDT
Multimedia delivery over Wireless Sensor Networks (WSNs) is energy critical. In this paper, the authors study an energy constrained cross layer optimization scheme to improve digital image quality...
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