Modelling and analysis of multi-sink wireless sensor networks using queuing theory

Multi-sink wireless sensor networks (WSNs) are required by an increasing number of applications due to their advantages such as saving energy and higher reliability. However, little modeling work has taken place for this type of network, particularly with mathematical analysis. Firstly, we show that the input process of the WSN sink node can be modeled as a Poisson process. Then we study the M/G/1/∞ queue model and make an attempt to use it instead of M/G/c/∞ model to analyze the multi-sink WSN. As far as we know, it is the first time it has been shown in this application that the input process is approximately a Poisson Process, and it is the first time that a queuing model has been used to analyze a multi-sink WSN. Simulation results show that it is reasonable to use M/G/1/∞ queue model when the load is not high.