Hybrid Beamforming and Combining for Millimeter Wave Full Duplex Massive MIMO Interference Channel

TL;DR

This paper proposes a joint hybrid beamforming and power allocation scheme for millimeter wave full duplex massive MIMO interference channels, significantly improving sum-rate performance over traditional half-duplex systems.

Contribution

It introduces a novel joint hybrid beamforming, combining, and power control scheme tailored for millimeter wave full duplex massive MIMO interference channels.

Findings

Significant sum-rate performance gains over half-duplex systems.

Effective interference management through SI and MIMO interference-aware power control.

Validation via simulations demonstrating the scheme's advantages.

Abstract

Full Duplex (FD) communication can revolutionize wireless communications as it avoids using independent channels for bi-directional communications. This work generalizes the point-to-point FD communication in millimeter wave (mmWave) band consisting of K-pairs of massive MIMO FD nodes operating simultaneously. We present a novel joint hybrid beamforming (HYBF) and combining scheme for weighted sum-rate (WSR) maximization to enable the coexistence of massive MIMO FD links cost-efficiently. The proposed algorithm relies on alternative optimization based on the minorization-maximization method. Moreover, we present a novel SI and massive MIMO interference channel aware power allocation scheme to include the optimal power control. Simulation results show significant performance improvement compared to a traditional bidirectional fully digital half-duplex (HD) system.