Title :
Performance evaluation of an enhanced distributed channel access protocol under heterogeneous traffic
Author :
Abu-Tair, Mamun I. ; Min, Geyong
Author_Institution :
Dept. of Comput., Bradford Univ.
Abstract :
Recently there have been considerable interests focusing on the performance evaluation of IEEE 802.11e medium access control (MAC) protocols, which were proposed for supporting quality of services (QoS) in wireless local area networks (WLANs). Different from most existing work, this study has conducted comprehensive performance evaluation and analysis of the IEEE 802.11e enhanced distributed channel access (EDCA) protocol in the presence of heterogeneous network traffic including nonbursty Poisson, bursty ON/OFF, and self-similar traffic generated by wireless multimedia applications. The performance results on throughput, access delay and medium utilization have demonstrated that the protocol is able to achieve satisfying QoS differentiation for heterogeneous multimedia traffic. On the other hand the results have showed that IEEE 802.11e EDCA suffering from the low medium utilization due to the overhead generated by transmission collisions and back-off processes
Keywords :
IEEE standards; access protocols; performance evaluation; quality of service; telecommunication networks; telecommunication standards; telecommunication traffic; wireless LAN; IEEE 802.11e enhanced distributed channel access protocol; IEEE 802.11e medium access control protocol; QoS differentiation; back-off process; bursty ON/OFF; heterogeneous network traffic; network performance evaluation; nonbursty Poisson; quality of service; self-similar traffic; telecommunications network overhead; transmission collision; wireless local area network; wireless multimedia application; Access protocols; Communication system traffic control; Delay; Media Access Protocol; Performance analysis; Quality of service; Telecommunication traffic; Throughput; Wireless LAN; Wireless application protocol;
Conference_Titel :
Parallel and Distributed Processing Symposium, 2006. IPDPS 2006. 20th International
Conference_Location :
Rhodes Island
Print_ISBN :
1-4244-0054-6
DOI :
10.1109/IPDPS.2006.1639640
