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Dynamic Adaptation of Contention Window for Consumer Devices in WiMedia Home Networks

Authors
Park, HyunheePack, SangheonKang, Chul-Hee
Issue Date
2월-2011
Publisher
IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
Keywords
Contention window; PCA protocol; WiMedia network; consumer devices
Citation
IEEE TRANSACTIONS ON CONSUMER ELECTRONICS, v.57, no.1, pp.28 - 34
Indexed
SCIE
SCOPUS
Journal Title
IEEE TRANSACTIONS ON CONSUMER ELECTRONICS
Volume
57
Number
1
Start Page
28
End Page
34
URI
https://scholar.korea.ac.kr/handle/2021.sw.korea/113145
DOI
10.1109/TCE.2011.5735477
ISSN
0098-3063
Abstract
WiMedia ultra-wideband technology is an attractive transmission solution for high-data-rate multimedia streaming and high-quality consumer electronic devices in wireless multimedia home networks. However, the contention-based protocol of WiMedia medium access control (MAC) may cause channel collisions and throughput degradation as the number of consumer devices in the network increases. In order to resolve this problem and to reduce channel access latency, we propose a dynamic adaptation of contention window (DACW) scheme in which the contention window size for the optimal transmission probability is derived after traffic information has been obtained by means of distributed beaconing procedures. The trace-driven simulation results demonstrate that the DACW scheme outperforms the existing channel access schemes (i.e., prioritized channel access) in WiMedia MAC under different situations, especially when the number of contending nodes is large(1).
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Pack, Sang heon
공과대학 (전기전자공학부)
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