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在任何类型的网络中,影响实时数据传输的因素无非是传输的延迟和包的丢失.Ad hoc网络拓扑结构的动态变化使得实时业务的服务质量(QoS)更难得到保障.包的丢失不仅会造成包的错误,还会为后继的包的传输带来错误[1].当今适用于Adhoc网络的路由协议都是针对大规模的Ad hoc网络,并且都趋向于减少路由开销,相应的带来很多影响数据实时性的弊端.本文会分析找出这些弊端的来源并加以改进,提出一个简化的实时DSR协议-MRDSR.仿真实验证明,MRDSR降低了传输的丢包率,降低了点到点的延迟.
In any type of network, the factors affecting the real-time data transmission are nothing more than the delay of transmission and packet loss.The dynamic changes of the ad hoc network topology make it more difficult to guarantee the quality of service (QoS) of real-time services. Resulting in a packet error, but also for the successor of the packet transmission error [1] .At present, suitable for Adhoc network routing protocols are for large-scale Ad hoc networks, and tend to reduce the routing overhead, the corresponding bring Many of the shortcomings affect the real-time data.This paper will analyze and find out the source of these shortcomings and improve it, put forward a simplified real-time DSR protocol -MRDSR simulation results show that MRDSR reduces transmission packet loss rate, reducing the point-to-point delay.