An Energy Efficient Advertisement Based Multichannel Distributed MAC Protocol for Wireless Sensor Networks (Adv-MMAC)

A number of multichannel medium access control (MAC) protocols have been developed earlier with the objective of maximizing energy efficiency and guaranteeing QoS requirements in wireless sensor networks. However, the trade-off between energy efficiency and QoS requirements remains an open issue. In this paper, we propose an energy efficient multichannel MAC protocol, so that nodes dynamically switch their interface between the channels to achieve this goal. The proposed protocol works in two phases, the advertisement (ADV) phase and data phase, which run concurrently. During the ADV phase, the nodes having data try to contend the advertisement channel to transmit the ADV packet. The nodes after receiving the acknowledgment from the receiver switch to the available free channel for the communication of the data packet. We analyze the performance of our proposed protocol through simulation. The simulation results reveal the proposed protocol performs better than the existing MAC protocols in terms of the energy efficiency, data delivery ratio, and end-to-end delay.