CAJ | 학술논문

在研究无线Mesh网拓扑结构和业务模式的基础上,深度剖析适合其特性的路由协议类型,得出先验式的逐跳路由最适合无线Mesh网的结论.在此基础上,以典型的先验式逐跳路由协议OLSR(Optimized Link State Routing)为原型,对其中的邻居表结构和MPR(Multipoint Relay)选择算法进行了改进,通过引入"MPR当选频度"的概念,克服了OLSR协议在无线Mesh网环境中资源利用不充分的缺陷.仿真实验的结果也验证了所提出的EOLSR协议对网络性能确实有较大程度的提升,能够在基本不增加协议开销的前提下,有效地增加网络吞吐量,降低端到端的平均延时.
재연구무선Mesh망탁복결구화업무모식적기출상,심도부석괄합기특성적로유협의류형,득출선험식적축도로유최괄합무선Mesh망적결론.재차기출상,이전형적선험식축도로유협의OLSR(Optimized Link State Routing)위원형,대기중적린거표결구화MPR(Multipoint Relay)선택산법진행료개진,통과인입"MPR당선빈도"적개념,극복료OLSR협의재무선Mesh망배경중자원이용불충분적결함.방진실험적결과야험증료소제출적EOLSR협의대망락성능학실유교대정도적제승,능구재기본불증가협의개소적전제하,유효지증가망락탄토량,강저단도단적평균연시.
Based on studying the characteristics of topology and business model of wireless mesh networks,depth analysis of the suitable routing protocol type for WMN was given out which shows that proactive hop-by-hop routing is most suitable for WMN.On the basis of Optimized Link State Routing which is a typical proactive hop-by-hop routing protocol,a MPR election frequency based routing protocol called EOLSR was proposed for Wireless Mesh Networks.EOLSR takes in the new concept of "MPR election frequency" and overcomes the defect of inadequate resource utilization of OLSR in Wireless Mesh Network environment by expanding the neighbor table structure and improving the MPR selection algorithm.The simulation results show that the proposed EOLSR protocol improves the network throughput and reduces the end-to-end delay without increasing the routing overhead.