中文摘要：

为减少AODV路由协议的路由开销,设计了一种基于位置信息改进的AODV路由协议——Im-AODV。改进的AODV路由协议通过在RREQ消息中添加节点位置信息来限制RREQ消息的洪泛区域,减少控制报文的转发。位置信息则通过RREQ消息和RREP消息在网络中扩散,并未增加额外的控制报文。通过NS2对改进的AODV路由协议进行仿真,仿真结果表明,改进的AODV路由协议减少了归一化路由开销,提高了分组投递率。

英文摘要：

The flooding request method of AODV routing protocol makes RREQ message forwarding across Ad Hoc network,which increases the routing overhead of protocol.To reduce the routing overhead of AODV routing protocol,an improved AODV routing protocol based on position information is proposed and called Im-AODV.In RREQ message of ImAODV,the position information is added to limit the flooding zone of RREQ,which can reduce the forwarding of control packets.The position information diffuses in the network through RREQ and RREP,which does not add additional control packets.The improved AODV routing protocol is simulated by NS2,the simulation results show that the normalized routing overhead of the improved AODV routing protocol is effectively reduced,and the packets delivery ratio is improved.