Adaptive Clustering with Dynamic Cluster Radius for Wireless Sensor Network
Luqiao Zhang, Qinxin Zhu, Juan Wang · International Journal of Control and Automation · 2013
Topology control in Wireless Sensor Network (WSN) has recently been an area of intense investigation, especially the cluster-based topology control algorithms.In this study, we propose Adaptive Clustering with Dynamic Cluster Radius (ACDCR), a cluster-based topology control algorithm.This protocol proves to have several salient features, such as higher energy efficiency, and better QoS (Quality of Service).The design is accomplished by employing the hop-adaptive cluster radius, cluster head selection criteria with left energy threshold, and several other mechanisms.In ACDCR, only nodes with higher residual energy level than their neighbors are identified as cluster head candidates.Each cluster is assigned with a hop related radius for load balancing.In addition, nodes are allowed to setup direct links with the base station, rather than only their cluster heads.Simulation study shows that ACDCR outperforms HEED (Hybrid Energy-Efficient Distributed Clustering) in terms of network lifetime and QoS with fairly reasonable tradeoffs.