A Two-Level Strategy for Topology Control in Wireless Sensor Networks

This paper presents a two-level strategy for topology control in wireless sensor networks. The energy saving methods in most of the existing research work can be categorized into two types: active subnetwork and short hops. The active subnetwork and short hops methods have different network conditions for them to perform well. We propose a two-level topology control strategy which integrates the above two methods to achieve further energy saving. The simulation results show that the two-level topology control strategy achieves better performance in terms of energy saving than both active subnetwork and short hops methods in networks with a wide range of node densities