摘要
无线传感器网络跨层协议中,LEACH协议不考虑节点参数情况,采用随机概率方法选择簇首,不能保证能量较大的节点被选为簇首(CH),进而会降低网络寿命.为了有效选择簇首,提出改进的I-LEACH协议,将节点的剩余能量及节点与基站(BS)的距离作为优选条件,通过将网络划分为四个象限加以实现.实验仿真结果表明,在网络寿命、传输到基站的数据量、所用时间和能耗等性能方面,I-LEACH协议优于LEACH协议,延长了网络的生命周期.
In the cross-layer protocol of wireless sensor network,the LEACH protocol selects the cluster heads(CH)by the random probability without considering the node parameters,which cannot guarantee that the node with higher energy is selected as the cluster head(CH),and then reduce the network lifetime.In order to select the cluster heads effectively,an improved I-LEACH protocol is proposed,which takes the residual energy of nodes and the distance between nodes and base station(BS)as the optimal conditions,and realizes it by dividing the network into four quadrants.The simulation results show that I-LEACH protocol is superior to the LEACH protocol in terms of the network lifetime,amount of data transmitted to the base station,time used and energy consumption and extends the network lifetime.
作者
代祥宇
DAI Xiang-yu(Department of Mathematics and Computer Science,Chaoyang Teachers College,Chaoyang Liaoning 122000)
出处
《辽宁师专学报（自然科学版）》
2019年第4期24-28,104,共6页
Journal of Liaoning Normal College(Natural Science Edition)
