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Contention-Free Access Protocol Based Energy-Efficient Transmission for Wireless PANs  

Joo, Yang-Ick (삼성전자 통신연구소)
Lee, Yeon-Woo (목포대학교 정보통신공학)
Jung, Min-A (목포대학교 컴퓨터공학)
Choi, Myeong-Soo (목포대학교 정보전자공학)
Kim, Seo-Gyun (정보통신연구진흥원)
Publication Information
The Journal of Korean Institute of Communications and Information Sciences / v.33, no.4A, 2008 , pp. 450-457 More about this Journal
Abstract
One of very essential techniques for enlarging lifetime of energy-constrained wireless personal area network (WPAN) devices is energy-efficient transmission technique. If the WPAN is operated based on a TDMA protocol, the satisfaction of QoS requirements at each allocated time slot is another important factor to be considered. We therefore propose an energy-efficient transmission scheme for WPANs operating with a contention-free medium access protocol such as TDMA, as well as satisfying QoS requirement. The proposed algorithm determines the optimum combination of transmit power, physical data rate and fragment size required to simultaneously minimize the energy consumption and satisfy the required QoS in each assigned time duration, considering all the possible energy-minimization related parameters. The proposed algorithm demonstrated the improved performance results in terms of throughput and energy consumption via computer simulation.
Keywords
WPAN; Energy efficient; Contention free Access Protocol; QoS;
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