基于负载均衡与时延约束的AODV协议  

Enhanced routing protocol on AODV with load balance and delay restriction

作　　者：钱红燕[1] 陈兵[1] 袁家斌[1] 

机构地区：[1]南京航空航天大学计算机科学与技术学院,江苏南京210016

出　　处：《南京理工大学学报》2013年第1期25-31,共7页Journal of Nanjing University of Science and Technology

基　　金：国家自然科学基金重点项目(61139002)

摘　　要：为了降低无线网格网(Wireless mesh network,WMN)中节点间的端到端传输时延,该文提出了一种改进的基于负载均衡与时延约束的自组织网络按需距离矢量路由协议(Enhancedrouting protocol on ad hoc on-demand distance vector(AODV)with load balance and delay restriction,BD_AODV)。BD_AODV要求源节点在进行路由请求时,包含对传输时延的要求和节点的负载信息,选择满足传输时延要求的节点转发路由请求至目的节点,目的节点搜集并将每条链路的平均负载反馈给源节点,使其能够据此选择合适的传输路由。网络模拟软件仿真实验表明,BD_AODV有助于保持网络的负载均衡,缩短端到端的传输时延,减少数据包丢失,提高无线网格网的服务质量。To decrease the end-to-end delay in wireless mesh network,this paper proposes an enhanced routing protocol on ad hoc on-demand distance vector(AODV)with load balance and delay restriction(BD_AODV).In BD_AODV,the source node sends its request with the requirement of delay and load to the destination node,and the messages are only transferred by nodes meeting the delay restriction.The destination node collects the loads of the whole path and feedbacks the average link load to the source for selecting the route.The simulation results from the Network Simulator Version 2 prove that it is good at keeping the load balance,shortening the end-to-end delay,and improving wireless mesh network ’ s quality of service.

关 键 词：无线网格网 路由算法 按需距离矢量路由协议 负载均衡 时延约束 

分 类 号：TP393.04[自动化与计算机技术—计算机应用技术]