在无线局域网中基于信号干扰比的信道分配  

Channel assignment in WLAN based on signal-to-interfercence ratio

作　　者：张康[1] 贾振红[1] 覃锡忠[1] 常春 曹传玲 

机构地区：[1]新疆大学信息科学与工程学院,新疆乌鲁木齐830046 [2]中国移动通信集团新疆有限公司,新疆乌鲁木齐830063

出　　处：《计算机工程与设计》2015年第3期576-580,共5页Computer Engineering and Design

基　　金：中国移动通信集团新疆有限公司研究发展基金项目(XJM2013-01)

摘　　要：为在IEEE802.11无线局域网络(wireless local area network,WLAN)中最大限度提高信号干扰比(SIR),提出一种基于用户级别的信道分配算法。基于最小化接入点APS之间的信号干扰对信道进行分配,在此基础上,计算每个用户的信号干扰比。无论用户如何分布、用户负载多少,该算法都可以对其进行改进,因此算法适用于任何无线局域网络。仿真计算结果表明,该算法显著提高了整个无线局域网络的信号干扰比和其吞吐量。To maximize signal-to-interference Ratio（SIR）at the user level,a channel-assignment algorithm at the access points（APs）of a wireless local area network（wireless local area network,WLAN）was proposed.The algorithm started with the channel assignment at the APs,which was based on minimizing the total interference between APs.Based on this initial assignment,the SIR for each user was calculated.The algorithm can be applied to any WLAN,irrespective of the user distribution and user load.Results of the simulation indicate that the proposed algorithm is capable of significantly increasing the SIR over the WLAN,which improves throughput.

关 键 词：信号干扰比 无线局域网 信道分配 接入点 吞吐量 负载 

分 类 号：TN925.93[电子电信—通信与信息系统]