Title :
Saturation throughput - delay analysis of IEEE 802.11 DCF in fading channel
Author :
Hadzi-Velkov, Zoran ; Spasenovski, Boris
Author_Institution :
Fac. of Electr. Eng., Ss. Cyril & Methodius Univ., Macedonia
Abstract :
We analytically analyzed the impact of an error-prone channel over all performance measures in a traffic-saturated IEEE 802.11 WLAN. We calculated station´s transmission probability by using the modified Markov chain model of the backoff window size that considers the frame-error rates and maximal allowable number of retransmission attempts. The frame error rate has a significant impact over theoretical throughput, mean frame delay, and discard probability. The peak throughput of a WLAN is insensitive of the maximal number of retransmissions. Discard probabilities are insensitive to the station access method, basic or RTS/CTS.
Keywords :
Markov processes; delays; fading channels; probability; wireless LAN; IEEE 802.11 DCF; Markov chain model; WLAN; backoff window size; delay analysis; discard probability; distributed coordination function; error-prone channel; fading channel; frame-error rates; mean frame delay; saturation throughput; station access method; stations transmission probability; wireless local area network; Analytical models; Delay; Electric variables measurement; Error analysis; Fading; Performance analysis; Probability; Throughput; Traffic control; Wireless LAN;
Conference_Titel :
Communications, 2003. ICC '03. IEEE International Conference on
Conference_Location :
Anchorage, AK
Print_ISBN :
0-7803-7802-4
DOI :
10.1109/ICC.2003.1204154
