摘要
随着高性能网络、移动网络及Internet的不断发展 ,具有QoS约束的多播路由技术已成为网络及分布式系统领域的一个重要研究课题 .该文研讨了AdHoc网络中具有QoS约束的多播路由问题 ,其中主要包含延迟、带宽、代价等QoS约束 .文中描述了一种适应于研究AdHoc网络QoS多播路由的网络模型 ,提出了AdHoc网络中一种具有QoS约束的多播路由协议 (QMRP) .文中给出了该协议的正确性证明和复杂性分析 .仿真实验结果表明 ,该协议较其它协议更适合于网络状态变化比较频繁的环境以及实时多媒体应用 ,优化了多播树的代价 .QMRP为AdHoc网络QoS约束多播路由提供了一种新的有效途径 .
With the rapid development of Internet, mobile networks and high-performance networking technology, QoS multicast routing in networks with uncertain parameters has become a very important research issue in the areas of networks and distributed systems. This paper discusses the multicast routing problem with multiple QoS constraints, which may deal with the delay, bandwidth and cost metrics, and describes a network model for researching the Ad Hoc network QoS multicast routing problem. It presents a multicast routing protocol with QoS constraints (QMRP). In this paper, the proof of correctness and complexity analysis of the QMRP are also given. Simulation results show that QMRP optimizes the multicast tree, is better than other protocols and is more suitable for the network situations with the status changed frequently and the real-time multimedia application. It is an effective approach to multicast routing decision with multiple QoS constraints.
出处
《计算机学报》
EI
CSCD
北大核心
2004年第10期1402-1407,共6页
Chinese Journal of Computers
基金
国家自然科学基金 (60 172 0 3 5
90 3 0 40 18)
湖北省自然科学基金(2 0 0 4ABA0 14 )
武汉市重点科技攻关项目基金 (2 0 0 410 0 10 0 1)资助
