Performance analysis of an energy efficient MAC protocol for sensor networks

In this paper we derive a qualitative model for O-MAC, an energy efficient MAC protocol designed for sensor networks. Through this model we study how each parameter, such as packet sending rate, node density and end-to-end hop lengths, affects the performance of O-MAC and the limitation of current O-MAC protocol. Moreover, the model gives us the direction of with which to modify the current O-MAC protocol to improve its performance. © 2008 IEEE.