Title :
A delay based backoff scheme to support m-commerce over wireless local area network
Author :
Li, Xiaohui ; Kou, Weidong ; Liu, Nai´an ; Xiao, Yuxia ; Sun, Xiang
Author_Institution :
State Key Lab. of Integrated Service Networks, Xidian Univ., Xi´´an
Abstract :
The focus of this paper is on a delay based backoff scheme to support m-commerce over wireless local area network (WLAN). Based on the distributed coordination function (DCF) and the enhanced DCF (EDCF) mechanisms in IEEE 802.11 and 802.lie, a novel backoff scheme is proposed. The scheme is to solve the problem of the packets loss and the decrease of performance due to the increasing contention window (CW) when there are continuous failure transmissions. In the proposed scheme, the CW of a packet will change dynamically with different delay for the different traffics. The performance of the new scheme is also discussed with simulation results. The results show that it helps m-commerce applications that handle text, image, and video simultaneously
Keywords :
IEEE standards; delays; electronic commerce; mobile communication; mobile computing; packet switching; quality of service; wireless LAN; 802.11e; IEEE 802.11; contention window; continuous failure transmission; delay based backoff scheme; distributed coordination function; enhanced DCF mechanism; m-commerce; mobile commerce; wireless local area network; Access protocols; Delay; Local area networks; Multiaccess communication; Quality of service; Radio frequency; Telecommunication traffic; Traffic control; Wireless LAN; Wireless networks;
Conference_Titel :
E-Commerce Technology for Dynamic E-Business, 2004. IEEE International Conference on
Conference_Location :
Beijing
Print_ISBN :
0-7695-2206-8
DOI :
10.1109/CEC-EAST.2004.1
