# Wireless Full-duplex Medium Access Control for Enhancing Energy Efficiency

## TL;DR

This paper introduces LPFD, a full-duplex wireless medium access control protocol that significantly improves energy efficiency by reducing power consumption through sleep states, achieving up to 17.3 times higher efficiency than existing protocols.

## Contribution

The paper proposes a novel low power full-duplex MAC protocol that leverages sleep states to enhance energy efficiency in wireless communication.

## Key findings

- LPFD achieves up to 17.3 times higher energy efficiency than existing protocols.
- LPFD outperforms half-duplex power saving modes by up to 27.5 times.
- Simulation results validate the effectiveness of the proposed approach.

## Abstract

Recent years have witnessed a proliferation of battery-powered mobile devices, e.g., smartphones, tablets, sensors, and laptops, which leads a significant demand for high capacity wireless communication with high energy efficiency. Among technologies to provide the efficiency is full-duplex wireless communication. Full-duplex wireless enhances capacity by simultaneously transmitting uplink and downlink data with limited frequency resources. Previous studies on full-duplex wireless mostly focuses on doubling the network capacity, whereas in this paper we discuss that full-duplex wireless can also provide higher energy efficiency. We propose low power communication by wireless full-duplexing (LPFD), focusing on the fact that the full-duplex communication duration becomes half of the halfduplex communication duration. In the LPFD, by using the sleep state in which the transceiver provided in the wireless communication terminal is turned off, power consumption of the wireless communication terminal is reduced and energy efficiency in wireless full duplex is improved. Simulation results show that the energy efficiency achieved by LPFD is up to approximately 17.3 times higher than the energy efficiency achieved by existing full-duplex medium access protocol. Further, it is up to approximately 27.5 times higher than the energy efficiency using power saving mode of half-duplex communication.