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Institute of Electrical & Electronic Engineers
(11390 results)-
Whitepapers
Modeling Mobility-Assisted Data Collection in Wireless Sensor Networks
October 29, 2008, 12:00am PDT
Exploiting mobility to enhance the performance of Wireless Sensor Networks (WSNs), in terms of connectivity, coverage, and lifetime elongation, has recently been the focus of several research...
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Whitepapers
DPRMM: A Novel Coverage-Invariant Mobility Model for Wireless Sensor Networks
October 29, 2008, 12:00am PDT
Existing mobility models for wireless sensor networks generally do not preserve a uniform scattering of the sensor nodes within the monitored area. This paper proposes a coverage-preserving random...
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Whitepapers
Optimal Rate Routing in Wireless Sensor Networks With Guaranteed Lifetime
October 29, 2008, 12:00am PDT
Channel capacity and node energy represent resources and constraints in designing efficient routing schemes for Wireless Sensor Networks (WSNs). To delivery more data, a higher rate is desirable,...
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Whitepapers
Performance Analysis for Optimal Hybrid Medium Access Control in Wireless Sensor Networks
October 29, 2008, 12:00am PDT
Sink's vicinity is a hotspot area in a wireless sensor network, and has a significant impact on the normal operation and network performance of the entire network. A hybrid MAC protocol makes use...
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Whitepapers
Energy-Aware Dynamic Topology Control Algorithm for Wireless Ad Hoc Networks
October 29, 2008, 12:00am PDT
Topology control via per-node transmission power adjustment has been shown effective in extending network lifetime. However, most of existing algorithms construct static topologies which fail to...
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Whitepapers
Stability of Multiple Receiving Nodes Slotted ALOHA for Wireless Ad Hoc Networks
October 29, 2008, 12:00am PDT
In wireless Ad Hoc and sensor networks, communication may be achieved without a central entity (base station) and nodes communicate with each other in a half-duplex manner. In those kinds of...
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Whitepapers
Network Coding in IEEE 802.11 Wireless LANs With an Enhanced Channel Access Scheme
October 29, 2008, 12:00am PDT
In this paper, the authors present a set of simple extensions to the IEEE 802.11 MAC that allow the efficient realization of wireless network coding. The main characteristic of the proposed...
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Whitepapers
Spatially Limited Contention for Multi-Hop Wireless Networks
October 29, 2008, 12:00am PDT
With rapid developments in the community mesh networks and wireless sensor networks research, the need for more efficient channel access techniques for multi-hop wireless networks has become...
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Whitepapers
A Cross-Layer Solution for Ultra wideband Based Wireless Video Sensor Networks
October 29, 2008, 12:00am PDT
A cross-layer communication protocol called VSN-Module is introduced for Wireless Video Sensor Networks based on UltraWideBand (UWB) radio technology at the physical layer. The core of the...
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Whitepapers
Using Hierarchical Agglomerative Clustering in Wireless Sensor Networks: An Energy-Efficient and Flexible Approach
October 29, 2008, 12:00am PDT
In Wireless Sensor Networks (WSNs), hierarchical network structures have the advantage of providing scalable and resource efficient solutions. Thus, finding an efficient way to generate clusters...
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Whitepapers
Optimal Cluster Number Determination for Clustered Wireless Sensor Networks
October 29, 2008, 12:00am PDT
A method to determine the optimal clusterhead number in a clustered wireless sensor network is proposed to improve the energy efficiency of clustering schemes. The wireless sensor network is...
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Whitepapers
Cross-Layer Optimization for Energy-Timeliness Tradeoff in TDMA Based Sensor Networks
October 29, 2008, 12:00am PDT
Energy efficiency is a critical issue in wireless sensor networks. Energy consumption can be saved by using a lower transmission power, but this also increases the channel error rate and the...
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Whitepapers
Asymptotic Performance of Distributed Detection in Clustered Multi-Hop Wireless Sensor Networks
October 29, 2008, 12:00am PDT
The authors consider a multi-hop clustered wireless sensor network in which sensor nodes use their observations of the environment to make local hard (0/1) decisions about whether an event has...
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Whitepapers
Efficient Tracking of Moving Targets by Passively Handling Traces in Sensor Networks
October 29, 2008, 12:00am PDT
The authors study the important problem of tracking moving targets in wireless sensor networks. They try to overcome the limitations of standard state of the art tracking methods based on...
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Whitepapers
Robust Edge Detection in Wireless Sensor Networks
October 29, 2008, 12:00am PDT
The ability to geometrically represent sensed phenomena within a wireless sensor network can provide a more concise view than enumeration of all nodes identifying a phenomenon. A more concise view...
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Whitepapers
Decentralized Target Tracking Based on a Weighted Extended Kalman Filter for Wireless Sensor Networks
October 29, 2008, 12:00am PDT
This paper presents a Weighted Extended Kalman Filter (WEKF) for target tracking in wireless sensor networks, where the location estimation is formulated as a Weighted Least Squares (WLS) problem...
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Whitepapers
Second Order Distributed Consensus Time Synchronization Algorithm for Wireless Sensor Networks
October 29, 2008, 12:00am PDT
This paper proposes a novel discrete time Second-Order Distributed Consensus Time Synchronization (SO-DCTS) algorithm for wireless sensor networks. The consensus properties and convergence rates...
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Whitepapers
Utilizing Path Diversity Via Asynchronous and Asymmetric Wakeups in Sensor Networks
October 29, 2008, 12:00am PDT
The authors present an asynchronous wakeup policy for wireless sensor networks that exploits the available path diversity for maximizing the expected network lifetime. They assume a random traffic...
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Whitepapers
Early Spread-Spectrum and Automatic Equalization-NOMAC and Rake
October 29, 2008, 12:00am PDT
Today, both spread spectrum and automatic equalization of randomly varying linear channel distortions are well-worn tools underlying cellular telephony, high-speed modems and other workhorse...
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Whitepapers
The History of Orthogonal Frequency Division Multiplexing
February 29, 2008, 12:00am PST
This paper depicts the development of Orthogonal Frequency Division Multiplexing from a historical perspective. A summary of major research milestones are noted that contributed to modern-day...
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Whitepapers
Self-Interference Aided Channel Estimation in Two-Way Relaying Systems
October 29, 2008, 12:00am PDT
In this paper, the authors propose a novel channel estimation scheme for the broadcast phase of the newly invented two-way relaying technique. Instead of using pilot sequences, they exploit the...
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Whitepapers
Differential Rotation Feedback MIMO System for Temporally Correlated Channels
October 29, 2008, 12:00am PDT
In fading channels, Multiple-Input Multiple-Output (MIMO) wireless systems make use of the spatial dimension of the channel to provide considerable capacity gain even when only partial Channel...
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Whitepapers
Mutual Coupling Effects in MIMO MRC Systems With Limited Feedback
October 29, 2008, 12:00am PDT
The authors consider the impact of transmitter correlation, mutual coupling and matching networks on the design and performance of MIMO MRC systems with limited feedback. They present codebook...
Provided by Institute of Electrical & Electronic Engineers
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Whitepapers
Quantizer Design for Codebook-Based Beamforming in Temporally-Correlated Channels
October 29, 2008, 12:00am PDT
Codebook-based transmit beamforming with receive combining is a simple and efficient strategy for Multiple-Input Multiple-Output (MIMO) wireless systems. However, as a closed-loop technique,...
Provided by Institute of Electrical & Electronic Engineers
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Whitepapers
On the Performance of Adaptive Limited Feedback Beamforming in Distributed MIMO Systems
October 29, 2008, 12:00am PDT
This paper analyzes the performance of Limited FeedBack (LFB) beamforming in Multiple-Input Multiple-Output (MIMO) Distributed Antenna Systems (DAS). The averaged Effective Signal-to-Noise Ratio...
Provided by Institute of Electrical & Electronic Engineers
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Whitepapers
A Stochastic Algorithm for Beamforming Using ESPAR Antennas
October 29, 2008, 12:00am PDT
Beamforming capabilities of Electronically Steerable Passive Array Radiator (ESPAR) antennas have attracted considerable attention in recent literature. In this paper, the authors consider a...
Provided by Institute of Electrical & Electronic Engineers
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Whitepapers
Performance Analysis of MIMO MRC in 3D Mobile-to-Mobile Double-Correlated Channels
October 29, 2008, 12:00am PDT
In this paper, the authors consider Multiple-Input Multiple-Output (MIMO) Maximal Ratio Combining (MRC) systems and assess the system performance in terms of average Symbol Error Probability...
Provided by Institute of Electrical & Electronic Engineers
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Whitepapers
Rateless Codes for MIMO Channels
October 29, 2008, 12:00am PDT
Two rateless code constructions are developed for efficient communication over Multi-Input Multi-Output (MIMO) Gaussian channels. The key ingredients in both architectures are layering, dithering,...
Provided by Institute of Electrical & Electronic Engineers
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Whitepapers
Full Rate L2-Orthogonal Space-Time CPM for Three Antennas
October 29, 2008, 12:00am PDT
To overcome the reduction of channel capacity caused by fading, Telatar, Foschini and Gans described in the late 90s the potential gain of switching to Multiple Input Multiple Output (MIMO)...
Provided by Institute of Electrical & Electronic Engineers
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Whitepapers
State-Selection in a Space-Time-State Block Coded MIMO Communication System Using Reconfigurable PIXEL Antennas
October 29, 2008, 12:00am PDT
In this paper, the authors propose a novel Multiple-Input Multiple-Output (MIMO) wireless communication system employing reconfigurable PIXEL antennas at the receiver. They design a...
Provided by Institute of Electrical & Electronic Engineers
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Whitepapers
The Golden Code is Fast Decodable
October 29, 2008, 12:00am PDT
Multiple-Input Multiple Output (MIMO) technology offers higher transmission rates and improved performance over single-antenna systems. The spatial diversity and multiplexing gains offered by the...
Provided by Institute of Electrical & Electronic Engineers
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Whitepapers
Optimum Space-Time Block Codes Over Time-Selective Channels
October 29, 2008, 12:00am PDT
The authors analyze the average Bit Error Probability (BEP) of orthogonal Space-Time Block Codes (STBC) over time-selective channels. Exact BEP results are obtained in closed form. Through the...
Provided by Institute of Electrical & Electronic Engineers
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Whitepapers
Quantitative Measurement and Design of Source-Location Privacy Schemes for Wireless Sensor Networks
September 8, 2011, 12:00am PDT
Wireless Sensor Networks (WSNs) have been widely used in many areas for critical infrastructure monitoring and information collection. While confidentiality of the message can be ensured through...
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Whitepapers
Adaptive Tree Search Detection With Variable Path Expansion Based on Gram-Schmidt Orthogonalization in MIMO Systems
July 1, 2012, 12:00am PDT
This paper proposes new adaptive tree search detection with variable path expansion based on Gram-Schmidt (GS) Orthogonalization (GSO) in MIMO systems. The authors adopt the GSO procedure to...
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Whitepapers
The Dedicated Optical Path Protection in WDM Mesh Networks and the Finite Differences of Available Capacity and the Connection Groups
July 1, 2012, 12:00am PDT
In this paper the problem of the traffic and the available network capacity of the WDM mesh networks are defined, analyzed and calculated by applying the difference equations. The requests for...
Provided by Institute of Electrical & Electronic Engineers
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Whitepapers
Delay and Disruption Tolerant Authentication for Space Communications
May 1, 2012, 12:00am PDT
Some space communication scenarios, such as deep space communication networks, represent an example of delay and disruption tolerant networks, which may experience dynamic, long-delay links, and...
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Whitepapers
MAC Protocol for Smart-Antenna Used Ad Hoc Networks With RTS/CTS Overhead Reduction
June 1, 2012, 12:00am PDT
This paper proposes a MAC protocol for ad hoc networks with smart antennas. In the proposed protocol, pulse/tone exchange mechanism is applied to smart-antenna networks. The mechanism...
Provided by Institute of Electrical & Electronic Engineers
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Whitepapers
Impact of Traffic Arrival Distributions on an 802.11 Ad Hoc Network: Modeling and Performance Study
May 1, 2012, 12:00am PDT
This paper investigates the impact of traffic arrival distributions on a typical 802.11 ad hoc network using simulation and modeling. In the investigation, four diverse traffic models...
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Whitepapers
A Simultaneous-Movement Mobile Multiplayer Game Design Based on Adaptive Background Partitioning Technique
April 1, 2012, 12:00am PDT
Implementations of mobile games have become prevalent industrial technology due to the ubiquitous nature of mobile devices. However, simultaneous-movement multiplayer games - games that a player...
Provided by Institute of Electrical & Electronic Engineers
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Whitepapers
Implementation of Dynamic Voltage Restorer (DVR) and Distribution Static Compensator (D-STATCOM) for Power Quality Improvement
April 1, 2012, 12:00am PDT
Power quality has become an important issue in recent times when many utilities around the world find very difficult to meet energy demands which leads to load shedding and power quality problem....
Provided by Institute of Electrical & Electronic Engineers
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Whitepapers
Network Coding With Linear MIMO Pre-Equalizer Using Modulo in Two-Way Channel
March 11, 2008, 12:00am PDT
Previous papers regard the signals from other users as interferences to be avoided in wireless ad-hoc network systems (e.g., IEEE 802.11/16). However, if the purpose of ad-hoc communications is...
Provided by Institute of Electrical & Electronic Engineers
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Whitepapers
Distributed Space-Time Trellis Code for Asynchronous MIMO Relays Over Frequency-Selective Channels
March 11, 2008, 12:00am PDT
In most cooperative communications works, perfect synchronization among relay nodes is assumed. However, this assumption is not realistic due to the distributed nature of each relay node. In this...
Provided by Institute of Electrical & Electronic Engineers
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Whitepapers
Supporting Uncompressed HD Video Streaming Without retransmissions Over 60GHz Wireless Networks
March 11, 2008, 12:00am PDT
Uncompressed HD (High-Definition) video delivery over Wireless Personal Area Networks (WPANs) is a challenging problem because of the limited bandwidth and variations in channel. The most straight...
Provided by Institute of Electrical & Electronic Engineers
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Whitepapers
QoS Architecture in Ad Hoc Networks: Effects of Shadow Classes and ECN to Regulate the Load
March 11, 2008, 12:00am PDT
The authors propose and analyze an augmented DiffServ architecture for ad hoc networks. A scheme based on shadow classes and ECN is used to control the load. By including ECN they are able to...
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Whitepapers
Evaluating of Capacities in TD-SCDMA Systems When Employing Smart Antenna and Multi-User Detection Techniques
March 11, 2008, 12:00am PDT
In TD-SCDMA systems, the Multi-User Detection (MUD) and adaptive smart antenna techniques are adopted in both uplink and downlink. Considering the complexity of cancelling inter-cell interference,...
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Whitepapers
Adaptive MIMO Decision Feedback Reduced-Rank Equalization Based on Joint Iterative Optimization of Adaptive RLS Estimation Algorithms
March 11, 2008, 12:00am PDT
This paper presents a novel adaptive reducedrank Multi-Input-Multi-Output (MIMO) decision feedback equalization structure based on joint iterative optimization of adaptive estimators. The novel...
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Whitepapers
Distributed Cyclic Spectrum Feature-Based Modulation Classification
March 11, 2008, 12:00am PDT
Automatic Modulation Classification (AMC) is a very important process for any receiver that has no, or limited, knowledge of the modulation scheme of the received signal. In addition to military...
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Whitepapers
A Generic Analytical Model of Packet Combining in Wireless Sensor Networks
March 11, 2008, 12:00am PDT
Simple Packet Combining (SPaC) is a recently proposed novel error-correction scheme for wireless sensor networks, whose excellent performance in noisy wireless transmissions was illustrated mainly...
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Whitepapers
Downlink Scheduling with Probabilistic Guarantees on Short-Term Average Throughputs
March 11, 2008, 12:00am PDT
The authors consider the problem of scheduling multiple transmissions on the downlink of a wireless network with probabilistic guarantees on users' short-term average throughputs. Many interactive...
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Whitepapers
Multidimensional Scaling Algorithm for Mobile Location Based on Hybrid SADOA/TOA Measurement
March 11, 2008, 12:00am PDT
The mobile location in wireless communication system becomes a popular issue in recent years. It is commonly used in emergency services, roadside assistance, billing, navigation, psychophysics,...
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Whitepapers
Hop-by-Hop Routing Strategy for Multihop Decode-and-Forward Cooperative Networks
March 11, 2008, 12:00am PDT
In this paper, focusing on multihop decodes- and forward cooperative networks, a hop-by-hop routing strategy are designed to optimize the end-to-end outage performance when only knowledge about...
Provided by Institute of Electrical & Electronic Engineers
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Whitepapers
Performance Analysis Framework and Vertical Handover Triggering Algorithms for Voice Over WLAN/Cellular Network
March 11, 2008, 12:00am PDT
The development of handheld User Equipments (UE) capable of operating over both cellular networks and Wireless Local Area Networks (WLAN) is an important step towards the evolution of...
Provided by Institute of Electrical & Electronic Engineers
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Whitepapers
Distributed Multichannel Power Allocation Algorithm for Spectrum Sharing Cognitive Radio Networks
March 11, 2008, 12:00am PDT
In this paper, the authors study the distributed MultiChannel Power Allocation (MCPA) problem for the spectrum sharing Cognitive Radio Networks (CRNs), where secondary transceiver pairs share the...
Provided by Institute of Electrical & Electronic Engineers
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Whitepapers
Interference Coordination vs. Interference Randomization in Multicell 3GPP LTE System
March 11, 2008, 12:00am PDT
In this paper the authors consider a multi cell and multiantenna E-UTRA system as conforming to 3GPP recommendation. Focusing on the downlink, the system performance is severely hampered by the...
Provided by Institute of Electrical & Electronic Engineers
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Whitepapers
Directional Dependence of Large Scale Parameters in Wireless Channel Models
March 11, 2008, 12:00am PDT
In this paper the autocorrelation properties of shadow fading and angle spread at both the Base Station (BS) and at the Mobile Station (MS) are analyzed using urban macro cellular measurement...
Provided by Institute of Electrical & Electronic Engineers
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Whitepapers
Performance Improvement for Multichannel HARQ Protocol in Next Generation WiMAX System
March 11, 2008, 12:00am PDT
Hybrid Automatic Repeat-reQuest (HARQ) is critical to an IEEE 802.16e OFDMA network, as it can significantly improve the reliability of wireless link. However, as revealed by the authors'...
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Whitepapers
History-Based Adaptive Modulation for a Downlink Multicast Channel in OFDMA systems
March 11, 2008, 12:00am PDT
In this paper the authors investigated the adaptive modulation strategies for Multicast service in orthogonal frequency division multiple access systems. They defined a Reward function as the...
Provided by Institute of Electrical & Electronic Engineers
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Whitepapers
Sum Rate Maximization of MIMO Broadcast Channels with Coordination of Base Stations
March 11, 2008, 12:00am PDT
The authors consider cooperative downlink transmission in multiuser, multi-cell and multiple-antenna cellular networks. Recently, it has been shown that multi-base coordinated transmission has...
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Whitepapers
A Layered Approach to Modelling and Design of Cross-Layer Protocols in Ad-Hoc Wireless Networks
March 11, 2008, 12:00am PDT
In the emerging context of wireless (mobile) ad-hoc networks, cross-layer design has been proposed in recent years to pursue joint optimization at various layers. Modifications to the OSI...
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Whitepapers
One-Hop vs. Two-Hop Routing in Simple Networks with Fading: An Outage Probability Analysis Addressing Spectral Efficiency
March 11, 2008, 12:00am PDT
This paper compares one-hop and two-hop routing in a simple three node network consisting of two mobiles and a base station. The channel model assumes additive white Gaussian noise, attenuation...
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Whitepapers
A Fragmentation-Based Data Collision Free MAC Protocol with Power Control for Wireless Ad Hoc Networks
March 11, 2008, 12:00am PDT
Resolving hidden terminal problem is one of the major responsibilities in designing MAC protocols for wireless ad hoc networks. The paper proposes a fragmentation-based MAC protocol with power...
Provided by Institute of Electrical & Electronic Engineers
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Whitepapers
Non-Unitary Codebook Based Precoding Scheme for Multi-User MIMO with Limited Feedback
March 11, 2008, 12:00am PDT
In this paper, the authors propose a non-unitary codebook based precoding scheme for Multi-User MIMO (MU-MIMO) downlink transmission with limited feedback. The proposed MUMIMO scheme will perform...
Provided by Institute of Electrical & Electronic Engineers
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Whitepapers
IEEE 802.11 DCF PSM Model and a Novel Downlink Access Scheme
March 11, 2008, 12:00am PDT
In this paper, the authors focus on the Markov model of IEEE 802.11 distributed coordination function with power saving mode. The throughput evaluation is based on the model, with the comparison...
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Whitepapers
REACH: A Roaming-Enabled Architecture for Multi-Layer Capturing
March 11, 2008, 12:00am PDT
Modern mobile PCs have different kinds of network access technologies, such as wire-based interfaces (Ethernet) or wireless adapters (IEEE 802.11 WLAN, GPRS/GSM or UMTS). Ongoing research deals...
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Whitepapers
A Linear Programming Solution to Subcarrier, Bit and Power Allocation for Multicell OFDMA Systems
March 11, 2008, 12:00am PDT
Bit-loaded Orthogonal Frequency Division Multiplexing (OFDM) with convolutional coding is a powerful technique for transmission over quasi-static frequency-selective fading channels. Motivated by...
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Whitepapers
Error Rate Analysis for Bit-Loaded Coded OFDM
March 11, 2008, 12:00am PDT
Bit-loaded Orthogonal Frequency Division Multiplexing (OFDM) with convolutional coding is a powerful technique for transmission over quasi-static frequency-selective fading channels. Motivated by...
Provided by Institute of Electrical & Electronic Engineers
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Whitepapers
Widest Spanning Tree for Multi-Channel Multi-Interface Wireless Mesh Networks
March 11, 2008, 12:00am PDT
Efficient broadcast schemes are essential in Wireless Mesh Networks (WMNs) for minimizing the content update time. In this paper, the authors consider the widest spanning tree problem in a...
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Whitepapers
Multicast Multiuser ARQ
March 11, 2008, 12:00am PDT
In this paper, multiuser ARQ is extended to multicasting. The core idea is that the sender, based on feedback from users regarding successfully received transmissions, adapts code weights for data...
Provided by Institute of Electrical & Electronic Engineers
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Whitepapers
Toward Mobility and Multihoming Unification The SHIM6 Protocol: A Case Study
March 11, 2008, 12:00am PDT
Multihoming and mobility in IPv6 are usually considered as two disjoints concepts. This has lead to the development of the two protocols family separately. However, the new IPv6 terminals are most...
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Whitepapers
An Opportunistic MAC in Multichannel Multiradio Wireless Ad Hoc Networks
March 11, 2008, 12:00am PDT
Opportunistic scheduling has been known as one of the possible ways of exploiting multi-user diversity, which comes from the time-varying propagation characteristics and broadcast nature of...
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Whitepapers
Robust Transmission for Multiuser MIMO Downlink Systems with Imperfect CSIT
March 11, 2008, 12:00am PDT
The performance of multiuser MIMO (MU-MIMO) downlink systems with precoding and decoding method by minimizing the Total Mean Square Error (TMSE) of all data streams of all users (T-MMSE) depends...
Provided by Institute of Electrical & Electronic Engineers
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Whitepapers
Spectral Efficiency Enhancement Techniques for Multicarrier On-Off Keying Transmission
March 11, 2008, 12:00am PDT
Amongst the advantages of Multicarrier On-Off Keying (MOOK) is the simplicity of its transmitter-receiver pair and inherent good performance in noisy channels which make it a popular choice for...
Provided by Institute of Electrical & Electronic Engineers
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Whitepapers
Evaluating MPEG-4 AVC Video Streaming over IEEE 802.11 Wireless Distribution System
March 11, 2008, 12:00am PDT
The high cost of rewiring existing houses with Ethernet to support broadband home networks has motivated consumers and service providers for "No-new-wires" and "Nowires" technologies. IEEE 802.11...
Provided by Institute of Electrical & Electronic Engineers
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Whitepapers
Channel-Dependent Scheduling of an Uplink SC-FDMA System with Imperfect Channel Information
March 11, 2008, 12:00am PDT
Channel-Dependent Scheduling (CDS) can increase the data throughput of a cellular system by exploiting multi-user diversity and frequency selectivity in the channel. In this paper, the authors...
Provided by Institute of Electrical & Electronic Engineers
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Whitepapers
Coexistence Empirical Study and Analytical Model for Low-Rate WPAN and IEEE 802.11b
March 11, 2008, 12:00am PDT
The IEEE 802.11 and Low Rate WPAN (LR-WPAN) wireless networks can provide complimentary services and are likely to be installed within the same environments. Coexistence between the networks would...
Provided by Institute of Electrical & Electronic Engineers
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Whitepapers
On the Impact of Mobility and Joint RRM Policies on a Cooperative WiMAX/HSDPA Network
March 11, 2008, 12:00am PDT
In this paper, the authors develop a generic Markovian model to study the dynamics of data service in a multi-cell context, and apply it to cells served by HSDPA and WiMAX access networks. They...
Provided by Institute of Electrical & Electronic Engineers
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Whitepapers
A Maximal Power-Conserving Scheduling Algorithm for Broadband Wireless Networks
March 11, 2008, 12:00am PDT
The limitation on the battery lifetime has been a critical issue for the advancement of mobile computing. Different types of power-saving techniques have been proposed in various fields. In order...
Provided by Institute of Electrical & Electronic Engineers
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Whitepapers
Energy Detection Using Estimated Noise Variance for Spectrum Sensing in Cognitive Radio Networks
March 11, 2008, 12:00am PDT
In this paper, the authors analyze the performance of spectrum sensing based on energy detection. They do not assume the exact noise variance is known a priori. Instead, an estimated noise...
Provided by Institute of Electrical & Electronic Engineers
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Whitepapers
An End-to-End Measurement-Based Admission Control Policy for VoIP Over Wireless Networks
March 11, 2008, 12:00am PDT
in this paper, the authors present a new policy for admitting Voice over IP (VoIP) sessions over wireless networks. Their proposed policy receives the admission information advertised by the VoIP...
Provided by Institute of Electrical & Electronic Engineers
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Whitepapers
An Efficient Spatial-Amplitude Diversity Technique for Multicarrier On-Off-Keying Communication Systems
March 11, 2008, 12:00am PDT
Although non-coherent Multicarrier On-Off keying (MOOK) is a relatively bandwidth inefficient technique, the simplicity of its transmitter-receiver pair and inherent coding ability make it a...
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