An adaptive contention slot selection mechanism for improving the performance of IEEE 802.11 DCF

被引：0

作者：

Patel P. ^{[1
]}

Lobiyal D.K. ^{[1
]}

机构：

[1] School of Computer and Systems Sciences, Jawaharlal Nehru University, New Delhi

来源：

Patel, Pushpendra (pushpendrapatel84@gmail.com) | 1600年 / Inderscience Enterprises Ltd., 29, route de Pre-Bois, Case Postale 856, CH-1215 Geneva 15, CH-1215, Switzerland卷 / 10期

关键词：

BEB; Binary exponential back-off; Contention slot selection; CSS; Delay; IEEE; 802.11; DCF; Throughput; Wireless local area networks; WLANs;

D O I：

10.1504/IJICT.2017.083272

中图分类号：

学科分类号：

摘要：

In IEEE 802.11 distributed coordination function (DCF) standard, binary exponential back-off (BEB) mechanism is used to perform collision avoidance. And, contention slot selection (CSS) distribution function of the BEB mechanism plays a prominent role in the DCF performance. In this paper, therefore, we have proposed an adaptive BEB mechanism, named as adaptive contention slot selection-based binary exponential back-off (ACSSB). This mechanism selects slots for back-off timer based on the number of competing stations in order to enhance the performance of the DCF. The proposed mechanism differs from the standard back-off mechanism by choosing the back-off timer in accordance to a non-uniform probability distribution function in the contention window (CW) interval. However, CW reset/expansion method used in proposed mechanism is the same as in standard back-off rule. Simulation results demonstrate that the ACSSB mechanism outperforms the earlier schemes, especially when there is large number of competing stations. Copyright © 2017 Inderscience Enterprises Ltd.

引用

页码：318 / 349

页数：31

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