Proceedings of the KIEE Conference (대한전기학회:학술대회논문집)

The Korean Institute of Electrical Engineers (대한전기학회)
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Extended PCF(EPCF) Mechanism for Wireless LAN MAC

Wireless LAN MAC을 위한 Extended PCF(EPCF) 방법

  • Lee, Ho-Seok (Department of Electrical Engineering, Hanyang University) ;
  • Suh, Byung-Suhl (Department of Electrical Engineering, Hanyang University)
  • 이호석 (한양대학교 전기공학과) ;
  • 서병설 (한양대학교 전기공학과)
  • Published : 2002.11.30
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Abstract

There are two kinds of network architectures in the IEEE 802.11:[1] distributed (ad-hoc) or centralized (infrastructure) wireless network. Centralized networks have an access point (base station) that can control the wireless medium access of stations in these networks. The 802.11 MAC protocol of an access point is the same as those of other stations in the contention period. This paper propose a novel MAC protocol of an access point to solve these problems. This MAC protocol adds a new contention-free period called EPCF (Extended PCF) to resolve accumulated data in the queue of an access point. Simulation results show that the new protocol performs better throughput than the 802.11 standard MAC with the less queue memory site requirement.

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