一种多出口的WiMAX Mesh回程网络资源调度算法  

A Scheduling Algorithm for WiMAX Mesh Network with Multiple Egress

作　　者：黄昭文[1] 冯穗力[1] 叶梧[1] 庄宏成[2] 

机构地区：[1]华南理工大学电子与信息学院,广州510640 [2]华为技术有限公司,深圳518129

出　　处：《电信科学》2009年第4期68-73,共6页Telecommunications Science

基　　金：粤港关键领域重点突破项目(No.2006010422)

摘　　要：由于WiMAX Mesh网络可以有效保证网络的QoS,因此有可能将其应用于电信级的回程网络。本文分析了WiMAX Mesh网络的调度机制和单出口WiMAX Mesh网络存在的问题,提出了一种多出口WiMAX Mesh网络组网方案,在该方案的基础上提出了全局最优的调度算法,并给出了把该算法应用到实际WiMAX Mesh网络中的详细步骤。本文对具有20个和50个SS节点的Mesh网络进行了仿真,对算法的性能和效果进行了验证。仿真结果表明,本算法可以把调度效率提高53%～70%。When we use the wireless mesh network in backhaul network, we need to consider the scheduling efficiency, throughput and robust. Since the WiMAX mesh network can guarantee the QoS of the mesh network, it is possible to be deployed in the backhaul network. In this paper, we analyze the scheduling mechanism of the WiMAX mesh network and point out the shortcoming of the single BS. Then we proposed a new WiMAX mesh network topology with multiple BS as egress, and we also gave the global optimized scheduling algorithm for our network plan. We described the detailed procedure used in our algorithm. We developed a simulation platform to verify this algorithm in a WiMAX mesh network with 20 and 50 mesh SS nodes. The simulation result shows that our algorithm will improve the efficiency varying from 53 percent to 70 percent.

关 键 词：MESH 调度 性能 定向天线 回程网 全局最优 

分 类 号：TN925.93[电子电信—通信与信息系统] TP393[电子电信—信息与通信工程]