Adaptive Duty-Cycle-Enabled Energy-Efficient Bit-Map-Assisted MAC Protocol

The present work proposes a duty-cycle-enabled energy-efficient bit-map-assisted (DCE-EBMA) medium access control (MAC) protocol. The proposed protocol efficiently utilizes the data slots by the adaptive duty-cycle approach. The algorithm adaptively updates the duty cycle of the sensor nodes and makes the system energy efficient. Simulation analysis has been performed for our proposed DCE-EBMA MAC protocol, and its performance is compared with the existing energy-efficient bit-map-assisted (EBMA) MAC protocol. The simulation environment is divided into three different scenarios. Each scenario analyzes the important parameters (i.e., packet size, cluster size, and data traffic) in terms of energy consumption, packet delivery ratio, and average transmission latency. The analytical model of the energy consumption, average transmission latency, and packet delivery ratio has been derived. Both the analytical and simulation results show that the proposed duty-cycle approach reduces the energy consumption of the wireless sensor network.