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针对干扰邻居数(INX)路由度量不能正确反映网络负载分布信息这一关键问题,在INX的基础上提出无线Mesh网络干扰与区域负载感知(IRLA)路由度量.IRLA通过平均竞争度描述干扰链路对同一信道的竞争程度和干扰链路负载的离散程度来衡量网络负载分布状况,使网络在路径选择时避开重负载区域,有效地实现了网络负载均衡.理论分析和NS-2仿真结果表明,所提路由度量能显著提高网络吞吐量,降低网络端到端时延和丢包率,在高负载网络环境下,仍具有提升网络性能的优势.
Aiming at the key problem that INX routing metric can not correctly reflect the network load distribution information, we propose the wireless mesh network interference and the area load sensing (IRLA) routing metric based on INX.IRLA describes the interference link based on average competitive degree The degree of competition on the same channel and the degree of interference with the load of the link to measure the distribution of network load, so that the network in the path selection to avoid heavy-load area, the effective realization of the network load balancing. Theoretical analysis and NS-2 simulation results show , The proposed routing metric can significantly improve the network throughput, reduce the end-to-end delay and packet loss rate of the network, and still have the advantage of improving network performance in a high-load network environment.