Title :
Traffic Prioritization for Carrier Sense Multiple Access with Enhanced Collision Avoidance
Author :
Barcelo, J. ; Bellalta, B. ; Cano, C. ; Sfairopoulou, A. ; Oliver, M. ; Zuidweg, J.
Author_Institution :
Dept. of Inf. & Commun. Technol., Univ. Pompeu Fabra, Barcelona, Spain
Abstract :
Carrier sense multiple access with enhanced collision avoidance (CSMA/ECA) is a simple MAC protocol for wireless local area networks that significantly outperforms CSMA/CA. This paper addresses traffic prioritization in CSMA/ECA using different minimum contention windows for different traffic classes. The conditions under which the collision-free operation is possible are presented and expressions for the steady-state channel efficiency are provided. Simulation results show that CSMA/ECA improves the channel utilization achieved by all traffic classes whenever the conditions for collision-free operation are satisfied.
Keywords :
access protocols; carrier sense multiple access; channel allocation; telecommunication congestion control; telecommunication traffic; wireless LAN; wireless channels; CSMA-ECA; MAC protocol; carrier sense multiple access; channel utilization; contention windows; enhanced collision avoidance; steady-state channel efficiency; traffic prioritization; wireless local area network; Access protocols; Collision avoidance; Media Access Protocol; Multiaccess communication; Road accidents; Telecommunication traffic; Traffic control; Upper bound; Wireless application protocol; Wireless networks;
Conference_Titel :
Communications Workshops, 2009. ICC Workshops 2009. IEEE International Conference on
Conference_Location :
Dresden
Print_ISBN :
978-1-4244-3437-4
DOI :
10.1109/ICCW.2009.5208109
