无线Mesh网络负载与干扰感知多播信道分配算法  

Load and interference-aware channel assignment algorithm for multicast in wireless mesh networks

作　　者：石文孝[1] 李蒸[1] 崔克强[1] 王继红[1] 张海蓉[1] 

机构地区：[1]吉林大学通信工程学院,长春130012

出　　处：《吉林大学学报（工学版）》2016年第5期1644-1650,共7页Journal of Jilin University:Engineering and Technology Edition

基　　金：国家自然科学基金项目(61373124)

摘　　要：针对多个多播会话相互存在干扰及Mesh客户端负载分布不均的问题,提出了一种新的负载与干扰感知的信道分配算法(LIMCA)。该算法综合考虑了多播会话流内、流间干扰以及负载等因素,为负载干扰权重大的节点优先分配部分重叠信道,以达到减少会话干扰和提高系统容量的目的。NS-3仿真结果表明:LIMCA算法相对于多信道多播(MCM)算法提高了网络平均吞吐量,降低了平均丢包率和平均端到端时延。To overcome the problems of multiple sessions＇ interference and mesh clients＇ imbalance load,a new Load and Interference-aware Multicast Channel Assignment（LIMCA）algorithm was proposed.The proposed algorithm comprehensively considers the factors,such as intra-flow interference,interflow interference and load,and assigns partially overlapped channels to nodes with larger loadinterference weights preferentially in order to reduce interference and improve network capacity.NS-3simulation results indicate that the LIMCA algorithm can achieve higher average network throughput,lower average packet loss ratio and average end-to-end delay in comparison with Multi-channel Multicast（MCM）algorithm.

关 键 词：通信技术 无线MESH网络 信道分配 多播 负载感知 干扰 

分 类 号：TP393[自动化与计算机技术—计算机应用技术]