A heterogeneous network model for prolonging lifetime in 3-D WSNs

In this paper, we consider the problem of maximizing the lifetime of a sensor network in which the sensors nodes are equipped with dissimilar amount of energy. Here we propose a network model in which the node heterogeneity in term of energy has been incorporated. The proposed network model contains three tier node heterogeneity namely, tier-1, tier-2, and tier-3 heterogeneity. We deploy the nodes in three dimension, which are assumed to be stationary and distributed uniformly over the monitoring region. The simulation results demonstrate that our proposed heterogeneous algorithm is more effective in prolonging the network lifetime as compared to the 3DADEEPS.