一种满足剩余能量约束的方向性Ad Hoc网络路由协议

本文提出一种基于剩余能量约束的方向性路由协议ED-AODV。该协议首先控制RREQ分组进行方向性传输来减小网络的洪泛负担；其次，提出基于剩余能量的预警机制，当移动节点剩余能量低于报警阈值时，通知源节点提前主动进行路由选择来提高路由的稳定性。ED-AODV采用的方向性控制RREO分组转发的方法又消除了提前进行路由选择带来的洪泛负担。仿真实验结果表明，在能量有限的情况下，采用ED-AODV协议在平均端到端时延、分组投递率性能指标上均优于AODV协议。

An Energy-Aware Direction Forward Routing Protocol in Ad HOC Networks

Based on AODV,an energy-aware direction-forward routing protocol in ad hoc networks(ED-AODV)is presented.To limit the route request scope,we use the hop count which represents the number of hops to destination to guide RREQ packets toward the destination node.Besides,when the remaining energy of one route node is lower than the warming value,the node triggers an alarm message to ask the source node to find a new routing path in advance.The load of flooding packets caused by the source nodes can be reduced with the method of direction forwarding the RREQ packets.In the end,several simulations are made to validate the performance of our methods and compare with the previous AODV.The result shows we have a larger performance improvement.