MST-based distributed topology control algorithm in wireless sensor networks

In order to prolong the lifetime of wireless sensor networks, we did some exploring researches on the topology control of the wireless sensor networks, a Minimum Spanning Tree (MST) based Distributed topology control algorithm, called DMST, for wireless sensor networks is brought forth and implemented, which can preserve to the maximum extent K fault-tolerant connectivity for any two nodes in the network. The simulation of the protocol is done in the OPNET modeler environment. The performance of energy is compared with Sensor Protocols for Information via Negotiation (SPIN) and Directed Diffusion (DD) in similar simulation scene. The results show that switches its running mode with the energy consuming of nodes, so that meet the goal of energy saving of the nodes in wireless sensor networks. By using DMST network topology can be simplified and by varying K network reliability can be controlled even under outdated neighbor information. Also, the network topology could be adjusted according to the max speed of nodes, which is helpful to keep topology stability in a mobile network.