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负载失衡会导致无线Mesh网性能不稳定和吞吐量下降,而其默认路由协议HWMP不能较好地满足动态负载均衡的要求.针对这一不足,本文对HWMP进行改进,在建立路由过程采用负载约束机制和中间节点消息控制机制,形成一种具有动态负载均衡功能路由协议——LB-HWMP.仿真结果表明,与HWMP相比,LB-HWMP有效平衡了全网的负载,在端到端延时、时延抖动、网络吞吐量等方面有一定提高.
The unbalanced load leads to the instability of wireless Mesh network performance and the decrease of throughput, but its default routing protocol HWMP can not meet the demand of dynamic load balancing well.To solve this problem, this paper improves HWMP and uses load constraint in establishing routing process Mechanism and intermediate node message control mechanism to form a LBBMP with dynamic load balancing function.The simulation results show that compared with HWMP, LB-HWMP effectively balances the load of the whole network, and the end-to-end delay , Delay jitter, network throughput and so have some improvement.