AdHoc网络中基于协商机制的QoS多播路由研究  

Research of QoS Multicast Routing Based on Consultation Mechanism in Ad Hoc Networks

作　　者：陶洋[1] 靳黎明[1] 

机构地区：[1]重庆邮电大学通信软件技术研究所,重庆400065

出　　处：《电视技术》2014年第15期132-135,139,共5页Video Engineering

基　　金：重庆市科技攻关计划资助项目(CSTC;2009AB2245)

摘　　要：针对移动Ad Hoc网络QoS多播路由中普遍存在的拥塞问题,提出了一种基于协商机制的QoS多播路由协议,节点协商使用以一定QoS约束建立起的多播链路,避免过度使用多播资源引起网络拥塞,从而提高分组投递率和网络吞吐量。通过NS2仿真证明,该协议能够保证不同类型业务在网络中传输的服务质量,提高网络的利用率。Focused on the congestion problem in the existing QoS multicast routing protocols of mobile Ad Hoc networks, a new QoS muhicast routing protocol based on consultation mechanism is presented. Multicast group members should consult with group leader whether they can use the multicast link established with QoS constraint before sending data packets. It can avoid network congestion caused by excessive use of muhicast resource, and thus increase the packet delivery ratio and network throughput. Extensive simulation results obtained using NS2 simulator, demonstrate that the proposed protocol can ensure the quality of services and improve the utilization of the network.

关 键 词：AD HOC网络 服务质量 多播路由 协商机制 

分 类 号：TP393[自动化与计算机技术—计算机应用技术]