Analysis of IEEE 802.11 non-saturated DCF by matrix analytic methods

Yun Bae, Kyung Kim, Mi-Nam Moon and Bong Choi ()

Annals of Operations Research, 2008, vol. 162, issue 1, 3-18

Abstract: In the IEEE 802.11 MAC layer protocol, the basic access method is the Distributed Coordination Function based on the CSMA/CA. In this paper, we investigate the analytic performance of IEEE 802.11 DCF in the non-saturation mode. We assume that there is a fixed number n of competing stations and the packet arrival process to each station is a Poisson process. We model IEEE 802.11 DCF in non-saturation mode by a 3-dimensional Markov chain and derive the steady state probability of the Markov chain by applying the matrix analytic method. We obtain the probability generating function of Head-of-Line delay (HoL-delay), non-saturation throughput and packet loss probability. Our results can be used for finding the optimal number of stations that can be accommodated while satisfying a given QoS requirement. Copyright Springer Science+Business Media, LLC 2008

Date: 2008
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DOI: 10.1007/s10479-008-0315-4

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