基于模糊视觉与快速路由的移动自组织网络路由协议FH-OLSR

在大规模密集的高速移动自组织网络中,节点的快速移动使网络拓扑变化频繁,从而需要加快路由更新,由此导致路由开销不断增加,网络性能下降.针对这一问题,本文提出了FH-OLSR路由协议,该协议基于优化链路状态路由协议(OLSR)设计,并引入模糊视觉技术与快速路由技术,通过监听节点链路状态的变化情况,自动调整握手消息与拓扑控制消息的发送频率与发送范围,同时结合链路状态计算路由,有效地提升网络拓扑收敛速度,降低路由开销,提高网络性能.本文利用OPNET仿真软件进行实验,结果表明:在大规模网络拓扑高速变化的情况下,FH-OLSR协议与OLSR协议相比,路由开销降低25%,端到端延时降低50%,丢包率降低15%.

FH-OLSR routing protocol based on hazy sighted link state and fast routing technology in mobile Ad Hoc networks

In the large-scale high-speed mobile ad-hoc networks,the rapid movements of nodes make the network topology change frequently,so it needs to speed up the routing update,which leads to the continuous increase of the routing overhead and degrades the performance of networks.To solve this problem,this paper proposes the fast hazy optimized link state routing (FH-OLSR) protocol,which is based on OLSR,the introduction of hazy sighted technology and the fast routing technology.By monitoring the changes of node link state,the transmit frequency and range of handshake messages and topology control messages can be automatically adjusted.Meanwhile the link state routing computation can be integrated to effectively speed up the network topological convergence and reduce the routing overhead and improve the network performance.The experimental results in OPNET show that in large-scale network topological high-speed changes,compared with the OLSR protocal,FH-OLSR can reduce the routing overhead,end-to-end delay and the packet loss rate by 25％,50％,15％,respectiely.