전기전자학회논문지 (Journal of IKEEE)
- 제11권4호
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- Pages.171-177
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- 2007
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- 1226-7244(pISSN)
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- 2288-243X(eISSN)
Efficient Polling Scheduler for IEEE 802.11 WLAN
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Kim, Tae-Kon
(Electronics and Information Engineering, Korea University) ;
- Lee, Hyung-Keun (Dept. of Computer Engineering. Kwangwoon University) ;
- Koh, Jin-Hwan (Electronical Engineering, KyungSang University)
- 발행 : 2007.12.31
초록
Although the Distributed Coordination Function is the fundamental access protocol of IEEE 802.11, it cannot meet the Quality of Service (QoS) requirements in general. So, the Point Coordinate Function is provided to support QoS related services. However, it has inherent problems. Access point (AP) has no knowledge of the queue status and instantaneous channel condition of stations in the system. In this paper we propose an efficient and versatile polling scheduler that shows excellent throughput and fairness performance. Comparison with well known polling schemes is provided through computer simulation under various channel situations including error prone environments.
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