An Efficient Cluster-set-based Topology Control Algorithm For Wireless Sensor Networks

With the fast development of sensors, micro-electro-mechanism system and network technology, Wireless Sensor Network, is a promising technology for acquiring and processing information. As a new research area of computer science and technology, it has wide application in the future and gains increasingly attention from walks of life, and all kinds of protocols and algorithms are proposed for some specific applications.Wireless sensor networks are composed of lots of low energy consumption sensor nodes that carry wireless equipment, capable of monitoring and gathering environmental information for different scenarios and sending the data to the sink for further processing. Because the network is powered by batteries, and whose energy is limited, how to prolong the life time of the network becomes the first important aim in wireless sensor networks.Firstly, some aspects of wireless sensor network are illustrated, and then the topology control algorithm for wireless sensor network is surveyed. Based on the analysis of cluster-based, distribute and stochastic topology control algorithm, a new energy effective algorithm based on clustered-set is proposed, in which the residual energy is also taken into consideration, meantime, the number of clusters is improved as well.According to the principle of structured design, the simulation and implementation of this algorithm is carried out in the MATLAB environment. Through analyzing the improved cluster selection algorithm and comprising the new algorithm with the stochastic cluster selection algorithm for wireless sensor network, it is apprent that the improved cluster selection topology control algorithm greatly reduces the energy consumption and thus prolongs the lifetime of the network.