一种区分路由频次的移动无线自组织网络混合路由协议

随着移动无线自组织网络在编队通信、应急通信等领域的广泛应用，越来越多的应用场景呈现路由使用频次不同的现象，对此现有按需路由协议和主动路由协议固定不变的路由维护策略无法高效适用。面向路由使用频次不同的应用场景，基于按需距离矢量（AODV）路由协议，设计并提出了一种按需策略和主动策略相结合的混合式路由算法，即通过源节点对每条路由使用频次的评估，将路由划分为高频次路由和低频次路由。对于高频次路由，运用主动策略维护；对于低频次路由，则运用按需策略维护。通过定性分析和仿真验证得出，相比AODV协议，该算法将数据包的端到端平均传输时延降低约20%.

A Hybrid Routing Protocol for Differentiating Route Frequencies in MANET

As a result of the widely use of mobile Ad Hoc network (MANET) in formation communication and emergency communication, the high and low frequency routes appear in real situations. In these scenarios, no matter what routing protocol is used, on-demand routing protocols or proactive routing protocols always use fixed maintenance strategy, and obviously none of them can bring their advantages into play. Regarding this scenario, a totally new hybrid routing algorithm is put forward based on Ad Hoc on-demand distance vector (AODV) routing protocol, which makes use of both on-demand and proactive strategies. In this new protocol, the high frequency route is obtained by estimating the traffic flow to maintain the frequently used route through proactive strategy and deal with the low frequency route with on-demand strategy. The qualitative analysis and simulation show that the new hybrid routing algorithm makes the end-to-end packet average transmission delay is reduced by about 20% when compared with AODV protocol.