CAJ | 학술논문

Ad Hoc网络中如何设计良好的路由协议使其网络均衡是当今研究的重点。针对网络负载和能量均衡等问题，提出了一种基于代价函数的改进按需距离矢量路由协议CF?AODV。该协议在路由建立过程中，通过能量阈值和缓存队列长度阈值进行RREQ转发判断；在目的节点选取路由时采用延迟应答方案，通过以路径长短、路径负载、路径剩余能量作为因子的代价函数进行判决来选取最佳路径。仿真结果表明，所提协议在网络负载和能量上得到了均衡，可以延长网络寿命，减轻网络拥塞，减少时延和丢包率。
Ad Hoc망락중여하설계량호적로유협의사기망락균형시당금연구적중점。침대망락부재화능량균형등문제，제출료일충기우대개함수적개진안수거리시량로유협의CF?AODV。해협의재로유건립과정중，통과능량역치화완존대렬장도역치진행RREQ전발판단；재목적절점선취로유시채용연지응답방안，통과이로경장단、로경부재、로경잉여능량작위인자적대개함수진행판결래선취최가로경。방진결과표명，소제협의재망락부재화능량상득도료균형，가이연장망락수명，감경망락옹새，감소시연화주포솔。
In Ad Hoc Network,how to design a good routing protocol to make network balancing is the focus of today’s re?search. For network balancing issues of load and energy,an improved demand distance vector routing protocol CF?AODV based on cost function is proposed. The protocol is used to do RREQ forwarding judgment by energy threshold and buffer queue length threshold in the establishing routing process. The delayed response program is used when the destination node selects route. By taking length,load and residual energy of path as cost functions of factor,adjustment for optimal routing selection is made. Si?mulation results show that the proposed protocol can make the network balance on load and energy,extend the network lifetime, reduce network congestion,latency and packet loss rate.