Performance Analysis and Optimization of Cooperative Full-Duplex D2D Communication Underlaying Cellular Networks

TL;DR

This paper analyzes and optimizes cooperative full-duplex D2D communication within cellular networks, focusing on power allocation schemes to enhance rate and outage performance, supported by theoretical derivations and simulations.

Contribution

It introduces a novel power allocation scheme for cooperative full-duplex D2D communication, improving rate and outage performance in cellular networks.

Findings

Proposed power allocation schemes outperform existing methods.

Theoretical analysis aligns with simulation results.

Optimized schemes increase minimum achievable rate and reduce outage probability.

Abstract

This paper investigates the cooperative full-duplex device-to-device (D2D) communication underlaying cellular network, where the cellular user (CU) acts as a full-duplex relay to assist the D2D communication. To simultaneously support D2D relaying and uplink transmission, superposition coding and successive interference cancellation are adopted at the CU and the D2D receiver, respectively. The achievable rate region and joint outage probability are derived to characterize the performance of the considered system. An optimal power allocation scheme is proposed to maximize the minimum achievable rate. Besides, by analyzing the upper bound of the joint outage probability, we study a suboptimal power allocation to improve the outage performance. The simulation results confirm the theoretical analysis and the advantages of the proposed power allocation schemes.