摘要
针对低能量自适应聚簇分层(LEACH)算法在簇头选举过程中采用最大发射功率,且未考虑剩余能量、簇头数量的变化,导致网络生存周期短的问题,提出一种自适应功率控制与优化分簇数量改进算法。新算法引入虚拟单元格划分节点位置以调整节点发射功率,动态优化簇头的数量以改变簇头选举方式,最终解决节点能耗不均的问题。仿真实验结果表明:新算法在簇头的选举和节点能量的利用率方面优于LEACH算法,能够有效均衡网络能耗,延长网络的生存周期。
Aiming at the problem of short network life caused by low energy adaptive clustering hierarchy（ LEACH） algorithm in election process of cluster head using the maximum transmitting power and without consider residual energy and quantity variation of cluster heads,an improved algorithm of self-adaptive power control and optimization clustering quantity is proposed. The new algorithm introduces virtual cell to divide nodes position,in order to adjust nodes transmitting power and dynamically optimize quantity of cluster heed in order to change the election mode of cluster head. Finally,solve the problem of uneven energy consumption. The simulation results suggest that in the election of cluster head and the use ratio of nodes energy the new algorithm is superior to the LEACH algorithm,which can effectively balance network energy consumption and prolong network lifecycle.
作者
齐华
吕龙
陈红
QI Hua;LU Long;CHEN Hong(College of Electronic Information Engineering,Xi＇an Technological University,Xi＇an 710021,China;Department of Information Engineering,Engineering University of People＇s Armed Police,Xi＇an 710086,China)
出处
《传感器与微系统》
CSCD
2018年第10期137-139,146,共4页
Transducer and Microsystem Technologies
