摘要： 针对现有异构网络算法负载不均衡和网络寿命短的问题,提出一种基于能量均衡与动态调节的节点筛选算法。根据网络节点间的相邻性与链路结构特点计算节点的距离和能量,引入方向因子与能量调节因子对节点选择概率进行优化,实现网络节点的动态选择。在此基础上,利用节点的关联性选取目标路径,并通过建立节点筛选机制实时排除能量不足的节点,从而保证网络正常运行与能耗均衡。实验结果表明,该算法能有效延长网络寿命,具有较好的稳定性,并且在时间充裕的情况下具有较高的准确率与数据接收率。

关键词: 异构网络, 负载均衡, 网络寿命, 节点, 方向因子, 链路

Abstract: Existing heterogeneous network algorithms have the problems of load imbalance and short network lifetime of the network.Aiming at this problem,this paper proposes a node selection algorithm based on energy balance and dynamic adjustment.It calculates the distance and energy of nodes according to the adjacency and structural characteristics of the link between network nodes,then introduces direction factor and energy regulation factor to optimize the node selection probability,so as to implement dynamic network node selection.On this basis,it selects the target path according to the relevance of nodes and excludes the nodes of insufficient energy in real time through the establishment of a node selection mechanism,thus ensuring normal network operation and energy consumption balance.Experimental results show that the proposed algorithm can effectively prolong the network life time and has good stability.At the same time,it has higher accuracy and data receiving rate in the case of enough time.

Key words: heterogeneous network, load balance, network lifetime, node, direction factor, link

中图分类号: 

• TP391