# Energy Efficient Precoding Design for SWIPT in MIMO Two-Way Relay Networks

## TL;DR

This paper proposes an energy-efficient precoding scheme for MIMO two-way relay networks with SWIPT, optimizing power transfer and data communication to enhance overall energy efficiency in bidirectional wireless systems.

## Contribution

It introduces a novel precoding design tailored for MIMO SWIPT two-way relay networks to maximize energy efficiency, addressing a gap in existing relay communication strategies.

## Key findings

- Achieved significant EE improvements over baseline methods
- Demonstrated the effectiveness of the proposed precoding in simulations
- Provided insights into the trade-offs between energy transfer and data rate

## Abstract

In this paper, we study the energy efficiency (EE) maximization problem in multiple-input multiple-output (MIMO) two-way relay networks with simultaneous wireless information and power transfer (SWIPT). The network consists of a multiple-antenna amplify-and-forward relay node which provides bidirectional communications between two multiple-antenna transceiver nodes