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wireless
(39508 results)-
White Papers
Resource-Aware and Link Quality Based Routing Metric for Wireless Sensor and Actor Networks
June 1, 2007 12:00am PDT
This paper presents a Resource-aware and Link Quality based (RLQ) routing metric to address energy limitations, link quality variations, and node heterogeneities in Wireless Sensor and Actor...
Provided by: Institute of Electrical and Electronics Engineers
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White Papers
A Dynamic Service Level Negotiation Mechanism for QoS Provisioning in NGEO Satellite Networks
June 1, 2007 12:00am PDT
Satellite communication systems exhibit important and unique features that qualify them to be an integral part of a global ubiquitous information system. Given the universality of the Internet...
Provided by: Institute of Electrical and Electronics Engineers
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White Papers
M-Gated Scheduling in Wireless Networks: Performance and Cross-Layer Design
June 1, 2007 12:00am PDT
E-limited (or K-limited) scheduling is attractive because its performance is close to that of the exhaustive scheduling which is proven to be the optimal polling scheme for symmetric systems (same...
Provided by: Institute of Electrical and Electronics Engineers
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White Papers
On Connectivity and Capacity of Wireless Mesh Networks
June 1, 2007 12:00am PDT
Wireless Mesh Networks represent an interesting technology due to their reliability, broad coverage and relatively easy and inexpensive scalability. The architecture is mainly a hybrid solution...
Provided by: Institute of Electrical and Electronics Engineers
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White Papers
Characterizing and Exploiting Partial Interference in Wireless Mesh Networks
June 1, 2007 12:00am PDT
In evaluating the performance of a wireless network, the interference between wireless links plays a key role. In previous works, interference was assumed to be a binary phenomenon, i.e., either...
Provided by: Institute of Electrical and Electronics Engineers
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White Papers
Fast Proactive Recovery From Concurrent Failures
June 1, 2007 12:00am PDT
Recovery of traffic in connectionless pure IP networks has traditionally been handled by a full re-convergence of the network state. This process operates in a time scale that is not compatible...
Provided by: Institute of Electrical and Electronics Engineers
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White Papers
A Statistical Bit Error Generator for Emulation of Complex Forward Error Correction Schemes
June 1, 2007 12:00am PDT
Forward Error Correction (FEC) schemes are generally used in wireless communication systems to maintain an acceptable quality of service. Various models have been proposed in literature to predict...
Provided by: Institute of Electrical and Electronics Engineers
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White Papers
Outage Performance of Wireless Systems With LCMV Beamforming for Dominant Interferers Cancellation
June 1, 2007 12:00am PDT
This paper investigates the outage probability of a wireless system with Linear Constrained Minimum Variance (LCMV) beamforming using a uniform linear array beamformer. LCMV beamforming is able to...
Provided by: Institute of Electrical and Electronics Engineers
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White Papers
On the Impact of Ignoring Markovian Channel Memory on the Analysis of Wireless Systems
June 1, 2007 12:00am PDT
Wireless channels experience significantly higher bit-error rates than wired channels. Many recent wireless channel measurement studies have analyzed and modeled wireless residual channels at...
Provided by: Institute of Electrical and Electronics Engineers
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White Papers
A Semantic Context Model for Location-Based Cooperative Mobile Computing
June 1, 2007 12:00am PDT
This paper addresses context issues in pervasive mobile computing and presents a semantic context model to support location based cooperative mobile applications. In this paper, a mobile learning...
Provided by: Institute of Electrical and Electronics Engineers
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White Papers
Modeling and Analysis of Handoffs in Cellular and WLAN Integration
June 1, 2007 12:00am PDT
In this paper, the authors propose an Integrated Service-Based hand-off scheme with (ISBQ) and without Queue capability (ISB) for the cellular and WLAN integration. The proposed hand-off schemes...
Provided by: Institute of Electrical and Electronics Engineers
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White Papers
Impact of Multi-Rate VoIP on Quality of Service in IEEE 802.11e EDCA With Link Adaptation
June 1, 2007 12:00am PDT
With the deployment of IEEE 802.11 wireless LANs, there is a strong requirement to support real-time applications with stringent QoS requirements on these networks. IEEE 802.11e provides QoS...
Provided by: Institute of Electrical and Electronics Engineers
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White Papers
Decomposition of Energy Consumption in IEEE 802.11
June 1, 2007 12:00am PDT
The authors derive formulas for the total energy J(n) that a station's radio consumes when it transmits 1 MB of data in an IEEE 802.11 network with n stations. (All nodes are one hop away from...
Provided by: Institute of Electrical and Electronics Engineers
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White Papers
Saturation Throughput Analysis of the 802.11e Enhanced Distributed Channel Access Function
June 1, 2007 12:00am PDT
The IEEE 802.11e standard has recently been ratified. This standard provides Quality-of-Service (QoS) guarantees in the Medium Access Control (MAC) layer of 802.11 Wireless Local Area Networks...
Provided by: Institute of Electrical and Electronics Engineers
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White Papers
An End-to-End Technique to Estimate the Transmission Rate of an IEEE 802.11 WLAN
June 1, 2007 12:00am PDT
The deployment of Wireless LANs (WLANs) has been steadily increasing over the years and estimating the actual bit rate of a WLAN device is important for management and applications such as those...
Provided by: Institute of Electrical and Electronics Engineers
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White Papers
A Hysteretic Source Rate Control Scheme for a Finite Buffer in a Wireless Environment
June 1, 2007 12:00am PDT
Highly unpredictable fluctuating behavior of a multimedia traffic often causes an overload in wireline networks. One useful approach is to use hysteretic and non-hysteretic thresholds based on...
Provided by: Institute of Electrical and Electronics Engineers
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White Papers
Application of Extreme Value Theory to the Analysis of Wireless Network Traffic
June 1, 2007 12:00am PDT
It is important to study the traffic in the wireless network control and management. This paper proposes the use of the EVT (Extreme Value Theory) for the analysis of wireless network traffic. The...
Provided by: Institute of Electrical and Electronics Engineers
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White Papers
On the Enhancement of LDPC Codes in the IEEE 802.16 Physical Layer
June 1, 2007 12:00am PDT
In this paper, the authors study Low Density Party Check (LDPC) codes used in the IEEE 802.16 physical layer standard. They introduce two novel techniques to enhance the performance of such codes....
Provided by: Institute of Electrical and Electronics Engineers
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White Papers
Achievable Diversity-Multiplexing-Delay Tradeoff for ARQ Cooperative Broadcast Channels
June 1, 2007 12:00am PDT
Cooperative broadcast aims to deliver common messages to all receiver nodes in the wireless network by utilizing cooperation between them. This can have many important applications like...
Provided by: Institute of Electrical and Electronics Engineers
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White Papers
Achieving High Spectral Efficiency With Adaptive Layered Space Time Codes Under Rate Control
June 1, 2007 12:00am PDT
This paper investigates a new concept that combines space-time coding with the layered architecture of Successive Interference Cancellation with Per Antenna Rate Control (PARC-SIC) for wireless...
Provided by: Institute of Electrical and Electronics Engineers
