摘要
无线Mesh网络是一种新型的宽带分布式无线接入网系统,它通过网关节点访问Internet.当网络接入的负载重或者网络规模扩展时,大量传输到同一网关节点的数据包会在此节点造成严重的拥塞,所以单一的网关节点往往会成为接入网的瓶颈.在研究动态源路由协议(DSR)和选播服务的基础上,提出了一种多网关无线Mesh网(WMN)路由协议(MMASR),该协议中,由多网关构成选播组,并扩展DSR协议以支持选播.仿真结果表明:MMASR协议能有效地解决单网关WMN的拥塞问题,保持很高的分组传递率、较低的数据分组延迟和路由开销,使接入网稳定高效地运行.
Wireless mesh network is a new broad bandwidth distributing wireless access network system. It can access Internet through Gateway nodes. When network load of access is heavy or network size is expanding , One gateway node will become a bottleneck of the access network because of serious congestion of a large number of data packets transmitted to the gateway node. Based on the research of DSR （Dynamic Source Routing Protocol） and anycast service,a multi-gateway wireless mesh network routing protocol （MMASR） was presented. In this protocol, the anycast group members were multiple gateways, and DSR was expanded to support anycast. Simulation results show MMASR can effectively solve the congestion problem of single gateway, maintain a high packet mailing rate,low delay and routing cost,and make the access network run stably and efficiently.
出处
《小型微型计算机系统》
CSCD
北大核心
2009年第3期477-479,共3页
Journal of Chinese Computer Systems
基金
广西高校人才小高地建设创新团队计划项目(桂教人[2007]71号)资助
