Adaptive Contention Window Control Scheme in Wireless Ad Hoc Networks

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The current contention mechanism of the IEEE 802.11 distributed coordination function (DCF) is known to have some drawbacks, e.g., collisions and low short-term fairness induced by minimizing the backoff stage after every successful transmission. To solve the drawbacks we propose an adaptive contention window control scheme which uses a single backoff stage while maintaining the advantages of the current IEEE 802.11 DCF such as simplicity and distributivity. We first introduce the key concept called the optimal collision probability and explain the detailed procedure of the proposed scheme which is based on the optimal collision probability. The convergence of the proposed scheme is shown. The validation from simulation results shows that the proposed scheme provides higher throughputs and higher short-term fairness than the IEEE 802.11 DCF.
Publisher
IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
Issue Date
2018-05
Language
English
Article Type
Article
Keywords

DISTRIBUTED COORDINATION FUNCTION; IEEE-802.11 DCF; PERFORMANCE; MECHANISM; PROTOCOL; DESIGN

Citation

IEEE COMMUNICATIONS LETTERS, v.22, no.5, pp.1062 - 1065

ISSN
1089-7798
DOI
10.1109/LCOMM.2018.2813361
URI
http://hdl.handle.net/10203/242412
Appears in Collection
MA-Journal Papers(저널논문)
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