• Title/Summary/Keyword: IEEE 802.11 PCF

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Performance Enhancement Method for Distributed real-time transmission in the wireless LAN (무선랜에서 분산 실시간 전송을 위 한 성능향상 방법)

  • 왕명안;임경수;박우진;안순신
    • Proceedings of the Korean Information Science Society Conference
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    • 2002.04a
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    • pp.487-489
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    • 2002
  • 최근 무선랜의 편리성으로 인하여 사용자의 수는 크게 증가하고 있는데 반하여 현재 상용되고 있는 무선랜 기술은 사용자의 요구에 대응하지 못하고 있는 실정이다. 본 논문에서는 무선랜의 표준인 IEEE 802.11에서 제안된 DCF(Distributed coordination function)와 PCF(point coordination function)의 두 가지 전송 방식의 성능향상을 위한 방안으로서 신뢰성, 공평성 등의 장점을 가지도록 실시간 데이터 전송방법을 제안한다.

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Spatial Reuse based on Power Control Algorithm Ad hoc Network (IEEE 802.11 기반의 모바일 애드 혹 네트워크에서 전력제어 알고리즘을 통한 공간 재사용)

  • Lee, Seung-Dae;Jung, Yong-Chae
    • Journal of the Korea Academia-Industrial cooperation Society
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    • v.11 no.1
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    • pp.119-124
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    • 2010
  • The MAC layer in ad-hoc network which makes network of nodes without infrastructure for a time has became an issue to reduce delay, allocate fairly bandwidth, control TX/RX power and improve throughput. Specially, the problem to reduce power consumption in ad-hoc network is very important part as ad-hoc devices use the limited battery. For solution of the problem, many power control algorithms, such as distribute power control, PCM (Power Control MAC) and F-PCF (Fragmentation based PCM), are proposed to limit power consumption until now. Although the algorithms are designed to minimize power consumption, the latency communication zone is generated by power control of RX/TX nodes. However the algorithms don't suitably reuse the space. In this paper proposes the algorithm to improve data throughput through Spatial Reuse based on a power control method.