Abstract
In recent years, Wireless Local Area Networks (WLANs) have become extremely popular. IEEE 802.11 protocol is the dominating standards for WLANs employing the Distributed Coordination Function (DCF) as its Medium Access Control (MAC) mechanism. In the literature, several papers have stuided performance of IEEE 802.11 protocol and assume that a station always have a packet available for transmission. This paper presents a Markov chain model to compute IEEE 802.11 DCF performance taking into account the packet arrival rates. Throughput and packet delay analysis are carried out in order to study the performance of IEEE 802.11 DCF under various traffic conditions. We present the analytical results of throughput and packet delay through network size and arrival rates. Results indicate that throughput and packet delay depends on the number of stations and packet arrival rates.
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