无线Ad Hoc网络中一种基于DSR的QoS路由协议  

A DSR-based QoS Routing Protocol in Wireless Ad Hoc Networks

作　　者：杨晓非[1] 杨静[1] 

机构地区：[1]重庆邮电学院,重庆400065

出　　处：《现代电子技术》2005年第23期26-28,共3页Modern Electronics Technique

摘　　要：QoS是无线AdHoc网络中的一个重要问题,而QoS路由技术是解决这一问题的关键技术之一。假定无线AdHoc网络中的每个节点的MAC子层能够提供一个参量,这个参量可以量化地表示该节点的忙闲状态,在这个假设的基础上,本文提出一种以DSR路由协议为基础的改进路由,在新的路由协议中,路由请求包中增加一个参量,用这个参量来表示路由请求包所经过的所有节点的状态总和,当路由请求包到达目的节点就找到了源节点到目的节点的路径,并且可以得到每条路径的状况。通过这些信息可以使得发现的路径是状况最好的路径,从而来满足QoS。QoS is a very important problem in wireless Ad Hoc networks, and QoS routing is an important solution to this problem. Suppose every node ,in the networks ,it＇s MAC sublayer can give a variable that indicated the node＇s condition. Based on this and DSR protocol ,this paper proposes a new routing protocol. In the new routing protocol ,a parameter is added into RREQ,and this parameter indicates the condition of the path that RREQ had passed. When RREQ reached the destination,The path that interlink the source and destination are found. By the parameter in the RREQ,we can know the condition of every path. And by this we can find the best path to meet the QoS.

关 键 词：随选驱动 动态源路由 服务质量 AD HOC网络 

分 类 号：TN915.04[电子电信—通信与信息系统]