Studies on the planarity, reliability and energetic efficiency in wireless sensor networks

In the paper three most popular methods for spanning the wireless sensor networks (WSN) have been studied with respect to their offered reliability and intra-network radio interference. The authors proposed an algorithm for creating fully planar and reliable WSN structures that, unlike the other algorithms, considerably increase the Signal-To-Noise and Interference (SNIR) ratio in mesh networks, which advantage is particularly emphasized when directional antennas are used. Next, the influence of the number of sink nodes has been studied which ended with conclusion that a properly chosen sink nodes configuration may remarkably extend the network lifetime by bringing the number of necessary hops minimum.