Equipping Millimeter-Wave Full-Duplex with Analog Self-Interference Cancellation

Roberts, Ian P.; Jain, Hardik; Vishwanath, Sriram

doi:10.1109/iccworkshops49005.2020.9145231

Cited by 32 publications

(21 citation statements)

References 12 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…In [35], HYBF for two fully connected mMIMO FD nodes that approaches SI-free sum-spectral efficiency is proposed. In [36], HYBF for a mmWave FD system equipped with analog SI cancellation stage is presented. In [37], HYBF to generalize the point-to-point mmWave mMIMO FD communication to the case of a K-pair links is presented.…”

Section: A State-of-the-art and Motivationmentioning

confidence: 99%

Practical Hybrid Beamforming for Millimeter Wave Massive MIMO Full Duplex With Limited Dynamic Range

Sheemar

Thomas²,

Slock

2022

IEEE Open J. Commun. Soc.

View full text Add to dashboard Cite

Full Duplex (FD) radio has emerged as a promising solution to increase the data rates by up to a factor of two via simultaneous transmission and reception in the same frequency band. This paper studies a novel hybrid beamforming (HYBF) design to maximize the weighted sum-rate (WSR) in a single-cell millimeter wave (mmWave) massive multiple-input-multiple-output (mMIMO) FD system. Motivated by practical considerations, we assume that the multi-antenna users and hybrid FD base station (BS) suffer from the limited dynamic range (LDR) noise due to non-ideal hardware and an impairment aware HYBF approach is adopted by integrating the traditional LDR noise model in the mmWave band. In contrast to the conventional HYBF schemes, our design also considers the joint sum-power and the practical per-antenna power constraints. A novel interference, self-interference (SI) and LDR noise aware optimal power allocation scheme for the uplink (UL) users and FD BS is also presented to satisfy the joint constraints. The maximum achievable gain of a multi-user mmWave FD system over a fully digital half duplex (HD) system with different LDR noise levels and numbers of the radio-frequency (RF) chains is investigated. Simulation results show that our design outperforms the HD system with only a few RF chains at any LDR noise level. The advantage of having amplitude control at the analog stage is also examined, and additional gain for the mmWave FD system becomes evident when the number of RF chains at the hybrid FD BS is small.

show abstract

Section: A State-of-the-art and Motivationmentioning

confidence: 99%

Practical Hybrid Beamforming for Millimeter Wave Massive MIMO Full Duplex With Limited Dynamic Range

Sheemar

Thomas²,

Slock

2022

IEEE Open J. Commun. Soc.

View full text Add to dashboard Cite

show abstract

“…HYBF for multi-antenna UL and downlink (DL) users served simultaneously in a mmWave FD system is studied in [40]- [44]. The contributions [40], [41], [43], [44] are limited to the case of one UL and one DL multi-antenna user, and in [42] we proposed HYBF for a single-cell mMIMO mmWave FD system under the limited dynamic range (LDR) by taking into account the distortions introduced by non-ideal hardware. Note that the literature does not contain any contribution for the multi-cell mMIMO mmWave FD system, i.e., to jointly serve the multi-antenna UL and DL users.…”

Section: A State-of-the-art and Motivationmentioning

confidence: 99%

Per-link Parallel and Distributed Hybrid Beamforming for Multi-Cell Massive MIMO Millimeter Wave Full Duplex

Sheemar¹,

Slock²

2022

Preprint

View full text Add to dashboard Cite

This paper presents two novel hybrid beamforming (HYBF) designs for a multi-cell massive multiple-input-multiple-output (mMIMO) millimeter wave (mmWave) full duplex (FD) system under limited dynamic range (LDR). Firstly, we present a novel centralized HYBF (C-HYBF) scheme based on alternating optimization. In general, the complexity of C-HYBF schemes scales quadratically as a function of the number of users and cells, which may limit their scalability. Moreover, they require significant communication overhead to transfer complete channel state information (CSI) to the central node every channel coherence time for optimization. The central node also requires very high computational power to jointly optimize many variables for the uplink (UL) and downlink (DL) users in FD systems. To overcome these drawbacks, we propose a very low-complexity and scalable cooperative per-link parallel and distributed (P$\&$D)-HYBF scheme. It allows each mmWave FD base station (BS) to update the beamformers for its users in a distributed fashion and independently in parallel on different computational processors. The complexity of P$\&$D-HYBF scales only linearly as the network size grows, making it desirable for the next generation of large and dense mmWave FD networks. Simulation results show that both designs significantly outperform the fully digital half duplex (HD) system with only a few radio-frequency (RF) chains and achieve similar performance.

show abstract

“…In [33], HYBF for two fully connected nodes that approaches SI-free sum-spectral efficiency is proposed. In [34], HYBF for mmWave equipped with analog beamforming stage is presented. In [35], hybrid beamforming for point-topoint mmWave FD massive MIMO interference channel is presented.…”

Section: A State-of-the-art On Mmwave Fdmentioning

confidence: 99%

Practical Hybrid Beamforming for Millimeter Wave Massive MIMO Full Duplex with Limited Dynamic Range

Sheemar¹,

Thomas²,

Slock³

2021

Preprint

View full text Add to dashboard Cite

Full-Duplex (FD) communication can revolutionize wireless communications as it doubles spectral efficiency and offers numerous other advantages over a half-duplex (HD) system. In this paper, we present a novel and practical joint hybrid beamforming (HYBF) and combining scheme for millimeter-wave (mmWave) massive MIMO FD system for weighted sum-rate (WSR) maximization with multi-antenna HD uplink and downlink users with non-ideal hardware. Moreover, we present a novel interference and self-interference (SI) aware optimal power allocation scheme for the optimal beamforming directions. The analog processing stage is assumed to be quantized, and both the unit-modulus and unconstrained cases are considered. Moreover, compared to the traditional sum-power constraints, the proposed algorithm is designed under the joint sum-power and the practical per-antenna power constraints. To model the non-ideal hardware of a hybrid FD transceiver, we extend the traditional limited dynamic range (LDR) noise model to mmWave. Our HYBF design relies on alternating optimization based on the minorization-maximization method. We investigate the maximum achievable gain of a hybrid FD system with different levels of the LDR noise variance and with different numbers of radio-frequency (RF) chains over a HD system. Simulation results show that the mmWave massive MIMO FD systems can significantly outperform the fully digital HD systems with only a few RF chains if the LDR noise generated from the limited number of RF chains available is low. If the LDR noise variance dominates, FD communication with HYBF results to be disadvantageous than a HD system.

show abstract

Equipping Millimeter-Wave Full-Duplex with Analog Self-Interference Cancellation

Cited by 32 publications

References 12 publications

Practical Hybrid Beamforming for Millimeter Wave Massive MIMO Full Duplex With Limited Dynamic Range

Practical Hybrid Beamforming for Millimeter Wave Massive MIMO Full Duplex With Limited Dynamic Range

Per-link Parallel and Distributed Hybrid Beamforming for Multi-Cell Massive MIMO Millimeter Wave Full Duplex

Practical Hybrid Beamforming for Millimeter Wave Massive MIMO Full Duplex with Limited Dynamic Range

Contact Info

Product

Resources

About