Abstract

Energy efficiency is one of the important critical metrics during protocol design in Wireless Sensor Networks (WSNs). Existing Medium Access Control (MAC) protocols do not take the initial node power into consideration, which may result in unfair power consumption, especially for low-power nodes. This paper presents an energy-efficient dual-layer MAC protocol with adaptive layer duration for WSNs. The suggested MAC protocol aims to minimize the energy consumption for low-power nodes. Performance evaluation is conducted to compare the proposed MAC protocol with both Sensor-MAC (S-MAC) and Multi-Layer MAC (ML-MAC) using computer simulations. The simulation results show that the proposed MAC protocol saves energy more than both S-MAC and ML-MAC. The proposed protocol saves 66.2% and 34.1% of the energy compared to S-MAC and ML-MAC, respectively.

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