【摘要】 针对无线自组网数据包在传输过程中的能量损耗和拥塞问题,以AODV(Ad Hoc on demand distance vector routing)路由协议为基础,提出了一种基于拥塞控制和能量状态的CE-AODV-H(congestion-energy AODV hop)路由协议。首先CE-AODV-H路由协议根据设定的阈值将拥塞状态和能量状态划分为不同的等级,其次将每段路径的拥塞状态和剩余能量以跳数的形式表示出来,即跳数代价,将跳数代价与实际跳数相加得到每段路径的总跳数。最后根据路径判断公式得到最终的跳数,选择跳数最少的路径作为最优路径。使用NS2.35仿真软件进行仿真。仿真结果表明:端到端延时、路由开销和数据包投递率、节点存活率方面都优于AODV和AODV-I路由协议。更多还原

【Abstract】 There are energy loss and congestion problems in the transmission process of data packets for wireless ad hoc networks. Based on Ad Hoc on demand distance vector routing(AODV) routing protocol, a congestion-energy AODV hop(CE-AODV-H) routing protocol based on congestion control and energy state was proposed. Firstly, the CE-AODV-H routing protocol divided the congestion state and the energy state into different levels according to the set threshold. Secondly, the congestion state and residual energy of each path were expressed in the form of hops, that is, the hop cost. The hop count cost added to the actual hop was the total hop count of each path. Finally, according to the path judgement formula to obtain the final hop count, and the path with the least hop count was selected as the optimal path. Simulation was performed by NS2.35 simulation software. The simulation results show that the improved CE-AODV-H routing protocol is superior to the AODV and AODV-I routing protocol in terms of end-to-end latency, routing overhead, packet delivery rate and node survivability.更多还原