Performance of a receiver-initiated MAC protocol with aggregation for event-driven wireless sensor networks

This paper proposes a new receiver-initiated MAC protocol utilizing aggregation techniques for low latency. The proposed MAC protocol is an energy-efficient protocol utilizing the receiver-initiated scheme which minimizes sender nodes' energy consumption by enabling transmitters to predict receiver nodes' wake-up times. It also improves energy efficiency through aggregation to exploit the spatial correlation of events in event-driven wireless sensor networks. We use the network simulator, NS-2 to evaluate the performance of MAC protocols including the proposed protocol in terms of latency, throughput and energy-efficiency. The simulation results show that the proposed scheme performs remarkably, especially in the case of the correlated traffic model, random correlated environment (RCE).