Optimising of Node Coordination in Wireless Sensor Network

Beamforming has been introduced in Wireless Sensor Networks (WSNs) in order to increase the transmission range of individual sensor nodes. One approach of optimizing node coordination is by implementing the theory of linear array for beamforming method. The approach is presented in this paper. The linear sensor node array (LSNA) is constructed within random sensor node deployment. The LSNA is optimized as a conventional uniform linear array (ULA) to minimize the position errors which will improve the beamforming performance in terms of gain, transmission range and characteristics. A simulation model is implemented to study the adaptive LSNA. Several scenarios were evaluated by comparing with the theoretical results of conventional ULA. The performance of the constructed adaptive LSNA demonstrated an excellent agreement compared to the conventional ULA.