认知无线mesh网中联合路由的分布式信道分配算法*

多信道技术通过对数据流量进行分流，能够减少链路间干扰，从而提升网络容量。首先针对认知无线mesh网络提出一种有效的联合路由的分布式信道分配策略，该信道分配策略主要宗旨是维持邻域内信道差异。仿真结果表明，新的信道分配算法相比于无线多信道网络中基于链接的信道分配算法，平均吞吐量大约提高了50%，平均时延降低了约50%。在信道约束的情况下，进一步引入了信道合并算法。仿真结果表明，执行信道合并算法后，网络平均吞吐量、时延性能得到了进一步改善。

Distributed joint routing and channel assignment algorithm in cognitive wireless mesh networks

Multiple channels can increase network capacity by transmitting traffic on different channels in an interference are a. Firstly, this paper proposed an efficient distributed joint routing and channel assignment strategy for cognitive wireless mesh networks. The main purpose of this channel allocation strategy was to maintain the channel diversity in the neighborhood. Simulation results show that compared to the link-based channel allocation algorithm in wireless multi-channel network, the avera-ge throughput approximately increases by 50%, and the average delay reduces by 50% with the new algorithm. Then, also proposed a channel merging algorithm in the channel constrained situation. Simulation results also show that, after the implementation of the channel merging algorithm, the network average throughput and delay performance have been further improved significantly, too.