On Performance of Routing Schemes in Mobile Ad hoc Network
无线移动自组织网路由协议性能研究

Mobile Ad hoc Network (MANET is characterized by frequently changing network topology, multihop wireless connectivity and the need for efficient dynamic routing protocols. We compare the performance of three prominent routing protocols for mobile ad hoc networks including proactive and reactive routing schemes: Dynamic Source Routing (DSR, Ad Hoc On-Demand Distance Vector Routing (AODV and OLSR (Optimized Link State Routing. A detailed simulation model is used to study their performance metrics: packet delivery ratio, end-to-end delay and route length. We demonstrate that even though DSR and AODV share similar on-demand behavior, the differences between the protocol mechanisms can lead to significant performance differences. The performance differences are analyzed using varying network load and mobility. From the detailed simulation results and analysis, a most appropriate choice of routing protocol can be made for given network context and goal. Based on the observations, we also make recommendations about how the performance of DSR can be improved.