Energy Balanced Scheme Based on Variable Cell Transmission Range for Wireless Sensor Networks

Clustering techniques in routing protocols improve the scalability of wireless sensor networks. To solve the "hot spot" problem caused by the cluster heads near the sink, which are burdened with heavy relay traffic via multi-hop transfer and tend to die earlier and therefore leads to the network being partitioned, an energy balanced scheme based on variable cell transmission range for wireless sensor networks (EBS-BVCTR) is presented. In EBS-BVCTR, the entire network has been divided into some regions reasonably such that the transmission range controls the number of clusters, large transmission ranges produce a small number of clusters, thus, energy balanced cluster architecture is chosen based on variable transmission range.The simulation results show that the EBS-BVCTR can allocate energy to each node of network regularly with higher energy efficiency, extend lifetime of network,and alleviate "hot spot" problem of data collecting network.