TY - GEN
T1 - Performance analysis of the IEEE 802.11 MAC and physical layer protocol
AU - Manshaei, Mohammad Hossein
AU - Cantieni, Gion Reto
AU - Barakat, Chadi
AU - Turletti, Thierry
PY - 2005
Y1 - 2005
N2 - We present an analytical model that accounts for the positions of stations with respect to the access point (AP) while evaluating the performance of the 802.11 MAC layer. Our work is based on the Bianchi model where the performance of the 802.11 MAC layer is computed using a discrete time Markov chain, but where all stations are implicitly assumed to be located at the same distance from the AP. In our model, given the position of one station, we compute its saturation throughput while considering the positions of other concurrent stations. Further, our model provides the total saturation throughput of the medium. We solve the model numerically and we show that the saturation throughput per station is strongly dependent not only on the station's position, but also on the positions of the other stations. Results confirm that a station achieves a higher throughput when it is closer to the AP, but bring out that there is a distance threshold above which the throughput decrease is fast and significant. When a station is far from the AP compared to the other stations, it contends for the bandwidth not used by the other stations. We believe that our model is a good tool to dimension 802.11 wireless access networks and to study their capacities and their performances.
AB - We present an analytical model that accounts for the positions of stations with respect to the access point (AP) while evaluating the performance of the 802.11 MAC layer. Our work is based on the Bianchi model where the performance of the 802.11 MAC layer is computed using a discrete time Markov chain, but where all stations are implicitly assumed to be located at the same distance from the AP. In our model, given the position of one station, we compute its saturation throughput while considering the positions of other concurrent stations. Further, our model provides the total saturation throughput of the medium. We solve the model numerically and we show that the saturation throughput per station is strongly dependent not only on the station's position, but also on the positions of the other stations. Results confirm that a station achieves a higher throughput when it is closer to the AP, but bring out that there is a distance threshold above which the throughput decrease is fast and significant. When a station is far from the AP compared to the other stations, it contends for the bandwidth not used by the other stations. We believe that our model is a good tool to dimension 802.11 wireless access networks and to study their capacities and their performances.
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U2 - 10.1109/WOWMOM.2005.76
DO - 10.1109/WOWMOM.2005.76
M3 - Conference contribution
AN - SCOPUS:33847299849
SN - 0769523420
SN - 9780769523422
T3 - Proceedings - 6th IEEE International Symposium on a World of Wireless Mobile and Multimedia Networks, WoWMoM 2005
SP - 88
EP - 97
BT - Proceedings - 6th IEEE International Symposium on a World of Wireless Mobile and Multimedia Networks, WoWMoM 2005
T2 - 6th IEEE International Symposium on a World of Wireless Mobile and Multimedia Networks, WoWMoM 2005
Y2 - 13 June 2005 through 16 June 2005
ER -