Prolong Stability Period in Node Pairing Protocol for Wireless Sensor Networks

Wireless sensor networks are efficient way to monitor important parameters in various fields of science and engineering. These sensors are battery operated and in each round of transmission some energy is used. Therefore, over the period of time battery drains, and thus effect the stability period of the networks. To conserve battery nodes are divided as normal and advance nodes. The energy of the advanced nodes is higher than normal nodes. Further clustering mechanism is used to reduce energy dissipation. This paper proposes a mechanism by which stability period, network lifetime and throughput can be increased significantly. The proposed mechanism considers S-SEP protocol and nodes are coupled to form pairs, then number of clusters and radius of the clusters are optimized such that isolated nodes are zero. It is found that using proposed mechanism stability period can be improved by 17% in comparison to recently proposed work.