异构无线传感器网络分簇路由机制  

Clustering Routing Algorithm for Heterogeneous Wireless Sensor Network

作　　者：徐世武[1] 王平[1] 

机构地区：[1]福建师范大学医学光电科学与技术教育部重点实验室,福州350007

出　　处：《计算机系统应用》2012年第2期109-112,共4页Computer Systems & Applications

基　　金：福建省自然科学基金(2008J0211);福建省教育厅资助项目(JB09071;JB09076)

摘　　要：详细分析了经典LEACH分簇算法及其优缺点后,在LEACH算法的基础上,针对异构无线传感器网络,即节点承担的角色不同,节点传输数据率不同的研究背景下,提出了一种RDCR分簇路由算法,算法在选择簇首节点的时候,充分考虑节点传输数据率不同,通过适当的调整节点成为簇首的门限值,降低高速率节点成为簇首的概率与频率,从而延长了高速率节点的生存时间。通过MATLAB软件仿真表明,相比于LEACH算法,RDCR算法能够延长高速率节点的生存时间,提高了整个网络的稳定期。The paper analyzes the detail advantages and disadvantages of LEACH algorithm.A RDCR algorithm is proposed based on LEACH algorithm.It involves the heterogeneous Wireless Sensor Networks,i.e.different nodes play different roles and different nodes have different data transfer rates.In the choice of cluster head node,the novel algorithm considers the different data transfer rates among different nodes.Compared with LEACH algorithm,RDCR algorithm adjust the threshold of node to be cluster head.It reduces the probability and frequency of high rate nodes to be cluster head,which lengthen life of high rate nodes.According to MATLAB software,simulation results show that RDCR algorithm can lengthen longer life of high rate node and better the stability of the entire network than LEACH.

关 键 词：无线传感器网络 分簇路由协议 LEACH RDCR 性能分析 

分 类 号：TN929.5[电子电信—通信与信息系统] TP212.9[电子电信—信息与通信工程]