Journal of Beijing University of Posts and Telecommunications

  • EI核心期刊

JOURNAL OF BEIJING UNIVERSITY OF POSTS AND TELECOM ›› 2015, Vol. 38 ›› Issue (4): 60-64.doi: 10.13190/j.jbupt.2015.04.013

• Papers • Previous Articles     Next Articles

Distributed Algorithm of Access Point Power Adjustment in Dense WLAN

SHI Yan, YANG Min   

  1. State Key Lab. of ISN, Xidian University, Xi'an 710071, China
  • Received:2015-01-14 Online:2015-08-28 Published:2015-08-28

Abstract:

A dense wireless local area network (WLAN) has the problems of severe interference, high energy consumption and difficulty on network performance optimization. An energy saving algorithm, which features the adaptive power adjustment of access points in a distributed fashion, is proposed. In this algorithm, each access point collects the distribution information about local terminals, and adjusts its transmission power or active handoff under the condition that the lower power can satisfy the service requirements of terminals, especially in non-busy hours. The simulation results show that this algorithm actually takes effect in reducing the energy consumption in dense WLAN.

Key words: power class, backup access point set, farthest terminal set, active handoff

CLC Number: