Low Power Design for IEEE 802.11 WLAN at the Medium Access Control Layer
El Bourichi Adil, 寛人 安浦 · QIR (Kyushu University Institutional Repository) (Kyushu University) · 2005
The convenience and easiness to implement and use of wireless local area networks , such as IEEE 802.11, is contrasted by the high energy consumption of mobile computers due to collisions and interferences occurring on the wireless medium and leading to a high number of retransmissions a station must perform before there can be a successful transmission of a packet. Mobile stations being essentially battery-driven, it is important to ensure a long lifetime for these batteries and therefore energy-efficiency is an increasingly vital issue in the design of these systems. In this paper, we propose a novel approach to improve the Collision Avoidance mechanism specified in the IEEE 802.11 standard as a part of its Medium Access Control (MAC) protocol, by dynamically reducing the number of retransmissions required after a collision occurs on the medium.