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Energy Efficient Access Point Selection Method for IEEE802.11 Wireless LANs

IEEE802.11 무선망을 위한 에너지 효율적인 AP 선택 기법

  • 허웅 (전북대학교 전자공학부 영상정보신기술연구소) ;
  • 팽우양 (전북대학교 전자공학부 영상정보신기술연구소) ;
  • 유강수 (전주대학교 교양학부) ;
  • 최재호 (전북대학교 전자공학부 영상정보신기술연구소)
  • Received : 2011.08.17
  • Accepted : 2011.10.24
  • Published : 2011.12.28

Abstract

Nowadays, wireless local area networks are widely deployed so that stations can potentially associate with an access point. The AP selection strategy is one of the significant research areas for wireless local area networks. The selection strategy solves the relevant problem is which AP can be selected and associated with a station so that the efficient resource utilization can be obtained. Rather than merely choosing the AP with the strongest received signal strength, however, we calculate effective throughput for each neighboring AP and use it as a basis for AP selection. Referencing the throughput is better than referencing the signal strength only because the network may contain a severe load imbalance. We have performed computer simulations using OPNET modeler in order to verify the performance of the proposed scheme. The results show us that the proposed selection method outperforms that of the conventional one in terms of throughput and delay.

Keywords

AP Selection;WLAN;Load Balancing;Wi-Fi

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