摘要
LEACH协议是无线传感器网络中被广泛应用的聚类协议,但它存在负载不均衡的缺陷。通过分析LEACH协议聚类中节点的能耗情况,建立节点的能耗模型,找出了聚类之间以及节点之间负载不均衡的原因。基于原有协议,提出了一种新的LB-LEACH通信协议。使用OMNET++进行仿真实验,实验结果表明,新协议能够使聚类间的负载更加均衡,减少节点的过早死亡,延长整个网络的寿命。
The protocol of LEACH （low-energy adaptive clustering hierarchy） is widely used in wireless sensor network. But it has the disadvantage ofunbalanced load. By analyzing the energy-consuming ofnodes in clusters for LEACH, the energy-consuming model is established and the reason is found why load among clusters is not balanced. Based on LEACH, a new load-balanced LEACH com- munication protocol is proposed, Simulation results demonstrate that our proposed approach is effective to balanc the energy-consuming among clusters and prolong the network lifetime.
出处
《计算机工程与设计》
CSCD
北大核心
2007年第18期4403-4406,共4页
Computer Engineering and Design
关键词
无线传感器网络
负载平衡
聚类
内核节点
边界节点
簇首
wireless sensor network
load balanced
cluster
core nodes
boundary nodes
cluster head
