CAJ | 학술논문

针对优化链路状态路由协议（OLSR）在网络拓扑结构快速变化时性能下降的问题，提出了一种新的结合鱼眼状态路由和能量感知的自适应改进路由协议，命名为AFE-OLSR。该改进协议通过监听节点链路集和多点中继选择集的变化情况，自动调整HELLO和拓扑控制消息的发送频率，实现移动感知。同时，它借鉴鱼眼状态路由的思想，节点自动调整拓扑控制消息的转发次数。通过这些机制，该协议能够记录接收消息的能量大小实现能量感知，以及根据能量感知和移动感知的结果来帮助节点选择更稳定和更可靠的路由。仿真结果表明，AFE-OLSR在网络拓扑变化时端到端时延减少8%，分组到达率提高11%，建立全网路由时间减少12%；在网络拓扑静止时HELLO发送量减少19%，TC转发量减少15%。
침대우화련로상태로유협의（OLSR）재망락탁복결구쾌속변화시성능하강적문제，제출료일충신적결합어안상태로유화능량감지적자괄응개진로유협의，명명위AFE-OLSR。해개진협의통과감은절점련로집화다점중계선택집적변화정황，자동조정HELLO화탁복공제소식적발송빈솔，실현이동감지。동시，타차감어안상태로유적사상，절점자동조정탁복공제소식적전발차수。통과저사궤제，해협의능구기록접수소식적능량대소실현능량감지，이급근거능량감지화이동감지적결과래방조절점선택경은정화경가고적로유。방진결과표명，AFE-OLSR재망락탁복변화시단도단시연감소8%，분조도체솔제고11%，건립전망로유시간감소12%；재망락탁복정지시HELLO발송량감소19%，TC전발량감소15%。
OLSR protocol suffers performance degradation when network topology changes. To solve this problem, a new routing protocol AFE-OLSR is proposed, which combined with fisheye state routing and energy aware. By monitoring the variation of link set and MPR selector set, the node with AFE-OLSR automatically adjusts the transmission intervals of HELLO and TC messages respectively in order to achieve mobility prediction. Meanwhile, the node automatically adjusts the forwarding times of TC message according to fisheye state routing. Then the nodes can realize energy aware by recording energy level of received message, and finally a more stable and reliable routing is chosen according to the energy-aware and mobile-aware results. The simulation results show that AFE-OLSR reduces end-to-end delay at about 8%, improves packet arrival rate at about 13%, and saves 12%routing establishing time of the whole network. When network topology remains stationary, the transmission amount of HELLO messages reduce at about 19% and the forwarding times of TC messages reduce at about 15%.