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Packet error model for the IEEE 802.11 MAC protocol | IEEE Conference Publication | IEEE Xplore

Packet error model for the IEEE 802.11 MAC protocol


Abstract:

Packet error in the IEEE 802.11 network is one source of performance degradation and its variability. Most of the previous works study how collision avoidance and hidden ...Show More

Abstract:

Packet error in the IEEE 802.11 network is one source of performance degradation and its variability. Most of the previous works study how collision avoidance and hidden terminals affect the IEEE 802.11 performance metrics, such as probability of a collision and saturation throughput. In this paper we focus on the effect of packet errors on capacity and variability of the IEEE 802.11 MAC protocol. We develop a new analytical model, called p/sub e/-model, by extending the existing model (Tay and Chun's model) to incorporate packet error probability p/sub e/. With p/sub e/-model, we successfully analyze the capacity and variability of the IEEE 802.11 MAC protocol. The variability analysis shows that increasing packet error probability by /spl Delta/p/sub e/ has more effect on saturation throughput than adding 0.5 W /spl Delta/p/sub e/ stations, where W is the minimum contention window size. We also show the numerical validation of p/sub e/-model with the IEEE 802.11 MAC-level simulator.
Date of Conference: 07-10 September 2003
Date Added to IEEE Xplore: 21 January 2004
Print ISBN:0-7803-7822-9
Conference Location: Beijing, China

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