Title :
Enhanced service differentiation extensions for the IEEE 802.11a wireless network
Author :
Kim, Seongkwan ; Kang, Sangwook ; An, Sunshin
Author_Institution :
Dept. of Electron. & Comput. Eng., Korea Univ., Seoul, South Korea
fDate :
28 June-1 July 2004
Abstract :
This work proposed EDWM (extended DiffServ in the WLAN MAC) architecture, an extension of the IEEE 802.11-like MAC protocol to support various multimedia traffics. The proposed MAC consisted of three modules: premium service (EDWM/PS), assured service (EDWM/AS), and the best-effort (EDWM/BE) functionalities. The EDWM/PS and the EDWM/AS were designed to provide the scheduling mechanism used in DiffServ routers, which were equivalent to expedited forwarding and assured forwarding, respectively, in order to guarantee QoS requirements such as low delay and bandwidth assurance. In the simulated performance, this novel approach increased the channel utilization, thus guaranteeing QoS for multimedia traffics at the same time preserving the traffic classification.
Keywords :
DiffServ networks; access protocols; multimedia communication; quality of service; telecommunication network routing; telecommunication traffic; wireless LAN; DiffServ routers; EDWM; EDWM-AS; EDWM-BE; EDWM-PS; MAC protocol; QoS requirement; channel utilization; extended DiffServ WLAN MAC; multimedia traffic; quality of service; scheduling mechanism; wireless local area network; Bandwidth; Delay; Diffserv networks; Internet; Media Access Protocol; Proposals; Scheduling; Traffic control; Wireless LAN; Wireless networks;
Conference_Titel :
Computers and Communications, 2004. Proceedings. ISCC 2004. Ninth International Symposium on
Print_ISBN :
0-7803-8623-X
DOI :
10.1109/ISCC.2004.1358451
