A distributed on-demand bandwidth-constrained multicast routing protocol for wireless ad hoc networks  

无线自组织网络中带宽约束的分布式按需组播路由协议(英文)

作　　者：余燕平[1] 倪玲玲[1] 郑元琰[1] 

机构地区：[1]浙江工商大学信息与电子工程学院,杭州310018

出　　处：《Journal of Southeast University(English Edition)》2015年第1期5-11,共7页东南大学学报（英文版）

基　　金：The Natural Science Foundation of Zhejiang Province(No.Y1090232)

摘　　要：To meet the bandwidth requirement for the multicasting data flow in ad hoc networks, a distributed on- demand bandwidth-constrained multicast routing （BCMR） protocol for wireless ad hoc networks is proposed. With this protocol, the resource reservation table of each node will record the bandwidth requirements of data flows, which access itself, its neighbor nodes and hidden nodes, and every node calculates the remaining available bandwidth by deducting the bandwidth reserved in the resource reservation table from the total available bandwidth of the node. Moreover, the BCMR searches in a distributed manner for the paths with the shortest delay conditioned by the bandwidth constraint. Simulation results demonstrate the good performance of BCMR in terms of packet delivery reliability and the delay. BCMR can meet the requirements of real time communication and can be used in the multicast applications with low mobility in wireless ad hoc networks.为了满足无线自组织网络中的组播数据流带宽需求,提出了无线ad hoc网络中带宽约束的分布式按需组播路由协议.该协议中,每个节点的资源预留表将记录接入自身、邻居节点和隐蔽节点的数据流的带宽需求,然后从该节点的全部可用带宽中减去资源预留表中预留的带宽,计算出剩余的可用带宽,且BCMR在带宽约束的前提下分布式地搜索最短时延路径.仿真结果表明,BCMR在分组投递率和时延方面性能较好,能满足实时通信的要求,可用于低移动性的无线ad hoc网络组播应用中.

关 键 词：wireless ad hoc networks multicast routing bandwidth satisfaction on-demand multicast routing distributed multicast routing QoS multicast routing 

分 类 号：TP393[自动化与计算机技术—计算机应用技术]