多信道无线Mesh网络可以有效解决在多跳无线网络中容量下降的问题。然而现有的路由协议大部分为单信道的多跳无线网络所设计,对于多信道WMN而言,会导致无效的路由路径。分析了现有无线Mesh网络的路由算法,详细讨论了基于WCETT(Weighted Cumulative Expected Transmission Time)的两种路由度量,在此基础上提出了一种新的路由量度WCETTR-LB,其对链路信道干扰的估算更加精确,能够感知周围链路对本信道的潜在干扰,并且考虑了节点负载度的概念,更加有助于实现负载均衡。 Multi-channel wireless Mesh network can effectively solve the problem of capacity decline in multi-hop wireless networks. However, most of the existing routing protocols are designed for single-channel multi-hop wireless networks. For multi-channel WMNs, invalid routing paths result. This paper analyzes the existing routing algorithms for wireless Mesh networks and discusses in detail two routing metrics based on Weighted Cumulative Expected Transmission Time (WCETT). Based on this, we propose a new metric WCETTR-LB for routing links The estimation of the interference is more accurate, the potential interference of the surrounding links to the channel can be perceived, and the concept of the node load degree is taken into consideration, which further helps to achieve load balancing.