摘要
为了延长无线传感器网络的工作时间,针对LEACH算法中能量分布不均衡以及簇头节点能量浪费的问题,提出了一种基于LEACH协议的兄弟节点算法(LEACH-BN,LEACH-Brother Node):通过簇内兄弟节点调整节点密度、簇头兄弟节点改进簇头选取和转发机制、簇间兄弟节点向基站转发数据。分析和仿真同时表明,改进后的算法实现了WSN中节点能量的全面均衡,提升了首节点和网络的生存时间,均衡弱势节点,增强系统的可靠性。
Regarding the disadvantages of uneven energy and the waste of clusters＇ energy,the BrotherNode algorithm based on LEACH（ LEACH-BN） is proposed to prolong the life time of wireless sensor network. The algorithm adjusts the node density through the brother nodes within the cluster,improves cluster head selection and forwarding mechanism through the brother nodes in the head of the cluster,and forwards the data to base station through the brother nodes between the clusters. The analysis and simulation results show that the improved algorithm achieves a thorough balance at the energy consumption,prolongs the life time of network and the first node and makes good equilibrium between the weak nodes. It also demonstrates that LEACH-BN algorithm enhances the reliability of system.
出处
《通信技术》
2014年第7期770-774,共5页
Communications Technology
基金
国家自然科学基金(No.11204046)
贵州省科技厅工业攻关项目(黔科合GY字[2010]3056)
贵州大学研究生创新基金(研理工2014007)资助~~
