摘要
传统DSR协议采取最短路径的路径选择依据,没有考虑热点的问题,不能满足无人机自组网对路径质量和节点能量等因素的要求。针对上述问题,提出一种改进的UAV-DSR协议,通过对节点的拥塞和能量情况分级处理,选择链路层缓冲队列较空闲、能量较高的节点转发数据,对负载和能量进行全网均衡。通过NS2仿真实验,与传统的DSR协议相比,UAV-DSR协议在网络吞吐量、分组投递率和平均端到端时延方面均得到较好的改善,满足无人机自组网的网络要求。
Taking the shortest path and without considering the problem of hot spots,the traditional DSR protocol can't meet the requirements of path quality and node energy of UAV MANET.Aiming at the above problems,an improved UAV-DSR protocol is proposed.According to the difference of node congestion and energy,the nodes with idle link layer buffer queue and higher energy are chosen to transfer the data and then the load and energy of the whole network are balanced.The NS2 simulation results show that the performance of UAV-DSR protocol is superior to that of traditional DSR in terms of network throughput,packet delivery ratio and average end-to-end delay,and the proposed UAV-DSR protocol can meet the network requirements of UAV MANET.
出处
《遥测遥控》
2013年第3期43-47,52,共6页
Journal of Telemetry,Tracking and Command
