基于802.11b MAC协议的Ad Hoc路由算法仿真与比较

主要利用NS2仿真分析了Ad Hoc网络模式中几个主要的路由（DSR、DSDV、TORA、AODV）算法进行研究.首先,利用NS-2测试4种路由协议的性能,讨论Ad Hoc模式下路由协议的设计.不同的路由协议,主要包括先验式和反应式两大类,有不同的适用场合,混合式的路由协议（AODV）有一定的优越性;然后,测试节点个数和数据包容量对无线网络MAC层性能（包括延迟、丢包率和吞吐率）的影响.结论为不同场合路由协议的进一步应用和优化提供理论依据.

Simulation and comparison of Ad Hoc routing algorithms based on 802.11b MAC protocol

Some routing algorithms such as DSDV, DSR, TORA and AODV are introduced, which are widely investigated in Ad Hoc network. Then, two experiments for Ad Hoc network are designed. One aim to test the performance of four different Ad Hoc routing protocols using NS2. Various routing protocols, including proactive and reactive, are suitable for different scenario. The other aim to test the performance (including delay, drop and throughput) of the MAC layer with the different node number and different packet size. So the number of the nodes or the packet size is not be out of the capability when designing a new Ad Hoc network. At last, the scenario with the free tool, NS (net simulator) is simulated. All the conclusions are helpful to further develop and optimize routing protocol for Ad Hoc network.