一种基于蚁群优化的DSR路由协议  

Ant Colony Optimization based DSR Routing Protocol

作　　者：梁哲文 张少杰 龙飞 LIANG Zhe-wen;ZHANG Shao-jie;LONG Fei(Beijing Huiqing Technology Co.,Ltd.,Beijing 101500,China)

机构地区：[1]北京慧清科技有限公司,北京101500

出　　处：《通信技术》2020年第12期2966-2972,共7页Communications Technology

摘　　要：隐蔽通信网络要求在降低路由开销的同时,保证数据传输的端到端性能。因此,设计了一种基于蚁群优化的动态源路由协议。该协议根据路由报文中携带的跳数、链路质量以及中继节点缓存等信息,计算多条路由的信息素和选择概率,使用选择概率最高的路由发送数据报文;在数据报文交换中,根据确认包实时更新选定路由的信息素和选择概率,从而动态选择最优路由。由于综合考虑了影响路由性能的跳数、链路质量和节点缓存等重要因素,该协议可以显著降低路由开销和端到端延时。此外,Opnet仿真结果验证了所设计协议的性能优势。With the objective of decreasing the routing overhead while guaranteeing the end-toend performance in covert communication networks,an ant colony optimization-based DSR(dynamic source routing)protocol is proposed and designed.This protocol calculates the pheromone and selection probabilities of multiple routes based on the hop count,link quality,and relay node cache information carried in the routing message,and uses the route with the highest selection probability to send data messages.In data-ACK exchange,the pheromone and selection probability of the selected route are updated in real time according to the received ACKs,and the optimal route is dynamically selected.Owing to comprehensive consideration of important factors such as the number of hops,link quality and node cache that affect routing performance,this protocol can significantly reduce routing overhead and end-to-end delay.Simulation results conducted by Opnet validate the performance advantages of the designed protocol.

关 键 词：隐蔽通信网络 动态源路由 蚁群优化 端到端性能 

分 类 号：TP393[自动化与计算机技术—计算机应用技术]