随机多Sink模式下的异构网络组织策略

Networking Algorithm for Random Muti-Sink Heterogeneous Networks

针对无线传感网中分簇及路由过程中节点能量利用率较低、网络能耗不均衡以及网络的生命周期较短等问题,面向多Sink模式下的具有随机异构性能的传感器网络,为解决该问题,提出了一种基于随机多Sink模式下的异构网络组织策略NAHN(Networking Algorithm for Random Muti-Sink Heterogeneous Networks)。异构节点以自身能量、可达节点集、平均邻居节点距离以及距离信号集为簇首选举标准,提出了基于多Sink模式下的权值匹配策略,优化簇首能耗;以簇首单次中转损耗的能量为门限,综合考虑自身能量以及多Sink模式下距离信号集的影响,搭建出一条最优的通信链路,在保证链路质量的同时优化路由过程中的簇首节点的能量损耗。在与其他3种多Sink异构网络改进的路由算法的性能比较实验中,NAHR算法在提高节点能量利用率、延缓节点死亡、延长且稳定网络寿命等方面,优势均较为明显。

In order to solve the problems of the low energy utilization efficiency,non-balanced energy consumption and short lifetime in clustering routing process,an efficient routing Networking Algorithm for Random Muti-Sink Heterogeneous Networks(NAHN)is proposed in the heterogeneous sensor network with multi-Sink node.The energy,the reachable node set,the mean distance of neighbor nodes and the distance signals set are considered as the election terms of cluster header.To optimize the energy of cluster header,a strategy to match the weights is proposed in multi-Sink pattern,After considering the influence of the energy and the distance signals set,an optimal communication link is built for cluster heard which use the energy of single communication as the threshold,it can premise the link quality while cluster header has a minor energy loss.Comparison with three improved heterogeneous with multi-Sink node routing algorithms,NAHN exhibits obvious advantages in energy utilization,stability of nodes and overall network lifetime.