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A Study on Backoff Algorithm for QoS in IEEE 802.11 Wireless LAN  

조재용 (인하대학교 정보통신대학원)
김석호 (인하대학교 정보통신대학원)
류동관 (인하대학교 정보통신대학원)
곽경섭 (인하대학교 정보통신대학원)
Publication Information
Journal of the Institute of Electronics Engineers of Korea TC / v.40, no.12, 2003 , pp. 116-124 More about this Journal
Abstract
According to the convenience and efficiency, IEEE 802.11 WLAN(Wireless LAN) has became rapidly wide-spread on the market. However, QoS support is needed for various multimedia service. In this paper, we consider both MAC method of IEEE 802.11 and IEEE 802.11e and Traffic Category differentiated service by QoS support method. In addition, we study currently existing back-off algorithms in view of comparative analysis. As a result we propose a new back-off algorithm called Collision Rate Based-EDCF. The proposed back-off algorithm confirms the performance by computer simulations in terms of Throughput, and QoS support.
Keywords
Wireless LAN; QoS; 802.11e; Backoff;
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