CAJ | 학술논문

在面向Internet接入无线Mesh网络(WMN)中,数据流在Mesh一侧的传输具有汇聚特性,终点大都为网关,因此最后一跳无线链路成为了WMN的瓶颈;同时不平衡的数据转发导致局部性能过低,也加剧了网络容量的低效问题.提出基于层次模型的路由转发策略,该路由策略通过平衡因子控制上层节点负载的均衡,从而提高WMN整体网络容量.仿真结果表明,采用层次化路由策略使得整体网络容量比HWMP提高了近20%,管理帧开销降至HWMP的40%.
재면향Internet접입무선Mesh망락(WMN)중,수거류재Mesh일측적전수구유회취특성,종점대도위망관,인차최후일도무선련로성위료WMN적병경;동시불평형적수거전발도치국부성능과저,야가극료망락용량적저효문제.제출기우층차모형적로유전발책략,해로유책략통과평형인자공제상층절점부재적균형,종이제고WMN정체망락용량.방진결과표명,채용층차화로유책략사득정체망락용량비HWMP제고료근20%,관리정개소강지HWMP적40%.
Mesh Gateways are destinations of data flows in Internet-accessing oriented WMN.The last-hop wireless links become bottleneck of WMN.Un-balanced data forwarding leads to lower capacity of the whole network,because it makes lower performance for some local areas.A new routing forwarding based on layer model is proposed in this paper.This strategy insures balance for upper-layer nodes using a balance factor.Capacity of whole WMN enhances accordingly.Simulation results indicate that compared with HWMP the layer routing can enhance the network capacity above 20%and management flame overhead is down to 40%.