Performance Analysis of Wake-Up Radio Based Protocols Considering Non-ideal Transmission Channel.

Since its emergence, Wake-up radio technology has solved idle listening and overhearing problems of the duty-cycled approach in wireless sensor networks (WSN). Using collision avoidance mechanisms has furthered the success of WuR by improving the overall performance of wireless communications. These latter are characterized by transmission errors in real environments. The effect of non-ideal transmission channel on the performance of WuR has not yet been investigated. In this paper, a discrete-time Markov chain (DTMC) model that takes into account transmission errors is provided. This model is used to evaluate and compare the performance of two WuR based protocols, with and without collision avoidance, referred to as WuR-CA and WuR-NCA, respectively. We demonstrate that WuR-CA provides better performance than WuR-NCA in terms of reliability and throughput, at the cost of higher delay and power consumption, in both ideal and no-ideal channel conditions.