COSFI-RIMAC: A Cooperative Short Frame Identifier Receiver Initiated MAC Protocol for Wireless Sensor Network

Abstract

Power consumption is the most important factor to evaluate the performance of Wireless Sensor Networks. Most sensor network Medium Access Control (MAC) protocols operate based on a duty cycle mechanism. The asynchronous receiver-initiated MAC duty cycle protocols are popular due to their relatively higher energy efficiency. However, recent advances harnessing the benefits of cooperative communication have become one of the solutions of MAC duty cycle protocol. In this article, we improve the RI-MAC protocol by introducing a short frame identifier to notify the sender when the receiver wakes up. This resolution reduces idle listening, which increases energy performance. When the sender node receives a short frame identifier, it cooperates with neighboring senders, which minimizes collisions. Our protocol is called: a Cooperative Short Frame Identifier Receiver Initiated MAC protocol, COSFI-RIMAC is an asynchronous MAC protocol cooperative service cycle initiated by the receiver. The simulation result on the NS2 simulator shows that the COSFI-RIMAC mechanism reduces power consumption, produces minor latency, and increases the rate of packet delivery.