基于动态分簇的抗WLAN干扰策略

摘要

Aiming at the interference problem of the WLAN to the ZigBee network,give a dynamic clustering scheme based on the orphan devices of the network. In the step of clustering,propose the conception of judging the premise condition of creating clusters and decom-posing clusters to release the channel,in order to decrease the number of orphan devices and enhance the overall throughput of the ZigBee network. Apply three cluster-processing methods in the procedure of dynamic clustering,which are merging clusters,creating clusters and decomposing clusters. Besides solving the issue of WLAN interference,this scheme can reduce the number of orphan devices largely and enhance the overall throughput of the ZigBee network,and finally get a better effect of dynamic clustering of the ZigBee network. Simula-tion results show that the method proposed can optimize the throughput of the ZigBee network with the time complexity increase slightly.%针对ZigBee网络中WLAN干扰问题，给出了一种基于ZigBee孤儿节点的动态分簇解决方案。在分簇环节中，为了减少ZigBee网络中剩余ZigBee孤儿节点数量以及提高整个ZigBee网络的吞吐量，文中提出了新建簇前提条件判决和分解簇释放信道的概念，把合并簇、新建簇和分解簇三种簇处理方法联合应用到动态分簇过程中。在解决WLAN干扰问题的同时，可以大大减少ZigBee网络孤儿节点数量并提高整个ZigBee网络的吞吐量，获得更好的ZigBee网络动态分簇效果。仿真结果表明，文中提出的动态分簇方法可以在稍微增加时间复杂度的情况下很好地解决ZigBee网络吞吐量减小的问题。