Title :
Enhanced MAC architecture for differentiated services in IEEE 802.11 WLAN
Author :
Shang, Yanlei ; Guo, Wei ; Cheng, Shiduan ; Ren, Biao ; Wang, Fei
Author_Institution :
State Key Lab of Networking & Switching, Beijing Univ. of Posts & Telecommun., China
Abstract :
In this paper we propose a novel MAC architecture to support differentiated services in IEEE 802.11 WLAN. By limiting the number of the contending STAs and distributing different priorities to the traffic classes with particular QoS requirements, the resulting MAC can provide prioritized services with different delays and collision probabilities. For this QoS-enabled MAC scheme, we give analytical results of the collision probability and successful transmit probability. We also evaluate the performance by using the ns-2 simulator.
Keywords :
DiffServ networks; access protocols; delays; probability; telecommunication traffic; wireless LAN; IEEE 802.11 WLAN; MAC architecture; QoS requirements; collision probabilities; delays; differentiated services; ns-2 simulator; prioritized services; traffic classes; Collision avoidance; Delay; Media Access Protocol; Multiaccess communication; Road accidents; Telecommunication switching; Telecommunication traffic; Traffic control; Wireless LAN; Wireless sensor networks; DCF; Qos-enabled MAC; differentiated services;
Conference_Titel :
IP Operations and Management, 2004. Proceedings IEEE Workshop on
Print_ISBN :
0-7803-8836-4
DOI :
10.1109/IPOM.2004.1547619
