Event-driven MAC Protocol For Dual-Radio Cooperation

Abstract

Dual-radio cooperation uses a low-power wake up radio to minimize the energy consumption of the wireless node in low event rates, and switches to single-radio working method in event rates more than the critical event rate. Critical event rate is defined as the rate above which dual-radio node consumes more energy than the single-radio model or the delay caused by using the wake up radio degrades the performance of the dual-radio model. The idea of using the dual-radio node model focuses on the energy waste sources related to the data link layer. Reducing the energy dissipation in idle listening mode, decreasing overhearing and overhead, and reducing the number of retransmissions due to collisions are the goals of using a low-power wake up radio beside the node’s main radio.