基于负载均衡的多跳中继网络接纳控制算法  

Call Admission Control Algorithm Based on Load Balance for Multi-hop Relay Network

作　　者：赵雪[1] 王平[1] 单联海[1] 刘富强[1] 

机构地区：[1]同济大学宽带无线通信与多媒体研究室,上海200092

出　　处：《计算机工程》2009年第23期81-83,87,共4页Computer Engineering

基　　金：国家"863"计划基金资助项目"基于移动中继技术的车辆通信网络的研究"(2007AA01Z239);上海市重大科技攻关基金资助项目"宽带无线组网性能测试方法及其关键技术研究"(07dz15006_2)

摘　　要：针对多跳中继无线网络提出一种基于负载均衡策略的呼叫接纳控制算法。在新的用户业务到达时,小区内服务基站根据当前小区负载情况,同时检测邻居小区的负载情况,判断是否将位于小区边缘的固定中继站切换到邻居小区,以减轻当前小区的负载,接纳更多的用户。仿真分析表明,基于负载均衡的接纳控制算法可以有效控制热点小区的业务量,降低新进用户阻塞率和切换用户掉话率。A call admission control algorithm based on load balance strategy for multi-hop relay system is proposed. According to cell＇s current load, server base station detects neighbor cell＇s load condition to make a choice whether performs handover on Fixed Relay Station（FRS） located at cell＇s boundary to neighbor cell or not, which alleviate current cell＇s load and accept more subscribers when handover subscribers arrive. Simulation analysis results show that the total traffic in hot cell can be controlled effectively by proposed call admission control algorithm, and new traffic blocking probabilities and handover dropping probabilities can be decreased.

关 键 词：多跳中继网络 负载均衡 固定中继站 接纳控制 

分 类 号：TP393[自动化与计算机技术—计算机应用技术]