Modelling of IEEE 802.11 DCF in the presence of hidden nodes
by Rakhi Joon; Rishi Pal Singh
International Journal of Wireless and Mobile Computing (IJWMC), Vol. 9, No. 1, 2015

Abstract: Today, the most commonly used technology for wireless networks is IEEE 802.11. The performance of the Medium Access Control (MAC) layer, which consists of Distributed Coordination Function (DCF) and Point Coordination Function (PCF), has been examined over a long time period. The DCF is the random access scheme that uses CSMA/CA in IEEE 802.11 MAC layer protocol. There are various issues related to the performance evaluation of IEEE 802.11 DCF and one of the important issues is the problem of hidden terminals which exists in practice in any wireless network. In this paper, a two-dimensional analytical model is proposed for the analysis of IEEE 802.11 DCF in the presence of hidden terminals for both basic access and RTS/CTS modes by making use of the Markov chain.

Online publication date: Mon, 14-Sep-2015

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