A randomized n-policy queueing method to prolong lifetime of wireless sensor networks

Abstract

The increasing interest in Wireless Sensor Networks (WSN) can be understood to be a result of their wide range of applications. However, due to uneven depletion of their batteries, the nodes often face premature failure. In this paper, we explore a queue based method for the improvement of the WSNs. We propose a N threshold lifetime improvement method which considers the probability variation for the various states of a WSN—sleep, idle, start-up, and busy. The experimental results validate our theoretical analysis and prove that our approach is indeed an efficient method for improving the lifetime of Wireless Sensor Networks.