Antenna Ratio for Sum-Rate Maximization in Full-Duplex Large-Array Base Station With Half-Duplex Multiantenna Users

Min, Kyungsik; Park, Sangjoon; Jang, Young Rok; Kim, Taehyoung; Choi, Sooyong

doi:10.1109/tvt.2016.2539384

Cited by 17 publications

(28 citation statements)

References 19 publications

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“…On the other hand, the cancelation of the SI for FD MU‐MIMO communication systems was analyzed in previous studies . In FD‐MU‐MIMO systems, in addition to the SI from DL to UL channel, there are co‐channel interference (CCI) from UL to DL users and MU interferences (MUI) in both channels which reduce the sum‐rates . The authors in a previous study used a beamforming and an minimum mean square error with successive interference cancellation (MMSE‐SIC) receiving filter for DL transmission and UL reception, respectively.…”

Section: Introductionmentioning

confidence: 99%

“…According to the authors in another study, the sum rates of both channels are maximized by making use of zero‐forcing receiver (ZF‐R) for the UL channel and ZF beamformer (ZF‐BF) for the DL channel. The studies in Min et al also used a block diagonalization (BD) receiving filter for UL communication and a BD precoder for DL communication. The authors in previous studies used a single antenna per UL and DL users.…”

Section: Introductionmentioning

confidence: 99%

“…Hence, it is required to study the FD MU‐MIMO system where UL and DL users are employed with multiple antennas. Although the ZF and BD precoding approaches in previous studies are low‐complex sub‐optimal for system implementation, they have restrictions on the number of antennas at the base station and both channel users for some MU‐MIMO system applications. To overcome the restrictions in both precoding schemes, a signal‐to‐leakages ratio (SLR) approach has been studied for DL MU‐MIMO systems (see previous studies).…”

Section: Introductionmentioning

confidence: 99%

“…Furthermore, the SE of FD MU‐MIMO communication systems for Gaussian distribution and independent and identical distributed (i.i.d). Rayleigh fading environment were analyzed in previous studies . Nevertheless, in a real circumstance, there is a line‐of‐sight (LOS) attachment between the transmitter and receiver (eg, in short range and mmWave communications).…”

Section: Introductionmentioning

confidence: 99%

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Spectral efficiency evaluation of full‐duplex mode of communications based on SLNR approach

Teklu

Meng

et al. 2019

Int J Communication

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Summary Full‐duplex (FD) mode of communication with efficient transmission scheme is a promising approach for 5G wireless systems by improving the spectral efficiency. This can be attained by making use of various precoding approaches. We propose a new co‐channel interference (CCI)‐aware improvement to signal‐to‐leakage‐and‐noise ratio (SLNR) technique and a suppression filter at the receiver to whiten the interference for the downlink channel. As well, for the uplink (UL) communication, we propose a self‐interference (SI)‐aware enhancement to SLNR scheme and designing a precoder using self‐interference plus noise covariance matrix. The total spectral efficiency is obtained from the sum‐rates of both downlink and uplink communication systems. Simulation results verify that the spectral efficiency (SE) of FD using the proposed scheme performs well relative to the half‐duplex system for all Rician factor and for small powers at the base station (BS) and UL communication channel users. Moreover, as the number of users grows, which entails that as the number of receiving antennas greater than the number of antennas at the BS the SLNR scheme still works, nonetheless, zero‐forcing (ZF) and block‐diagonalization (BD) precoding schemes failed. This is due to the fact that designing a precoder based on SLNR scheme supports multiple numbers of antennas at the base station and users compared with ZF and BD by compromising the interference and noise. However, for the cases of ZF and BD approaches failed due to both schemes require the number of transmit antennas at the BS to be larger than the sum of the receiving antennas at all users.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Spectral efficiency evaluation of full‐duplex mode of communications based on SLNR approach

Teklu

Meng

et al. 2019

Int J Communication

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“…For example, the authors in [9] have shown that the FD functionality in the context of baseline single-input single-output (SISO) cellular networks can result in the doubling of the DL rate at the cost of over a thousand-fold deduction in the UL rate. A potential solution can be to exploit massive MIMO for better resilience against SI and cross-mode interference as highlighted in [10] and [11], which focus on a single-cell LSAS scenario.…”

Section: Introductionmentioning

confidence: 99%

Design and Analysis of Full-Duplex Massive MIMO Cellular Networks

Shojaeifard

Wong

Renzo

et al. 2016

2016 IEEE Globecom Workshops (GC Wkshps)

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Abstract-This paper provides a theoretical framework for the study of full-duplex (FD) massive multiple-input multiple-output (MIMO) cellular networks over Rician self-interference (SI) and Rayleigh intended and other-interference fading channels. To facilitate bi-directional wireless functionality, we incorporate (i) a downlink (DL) linear zero-forcing with self-interferencenulling (ZF-SIN) precoding scheme at the FD base stations (BSs), and (ii) an uplink (UL) self-interference-aware (SIA) fractional power control mechanism at the FD user equipments (UEs). Linear ZF receivers are further utilized for signal detection in the UL. The results indicate that the UL rate bottleneck in the baseline FD single-antenna system can be elevated by several hundred times via exploiting massive MIMO. On the other hand, the findings may be viewed as a reality-check as the largest spectral efficiency gain from the FD massive MIMO cellular network over its half-duplex (HD) counterpart under state-ofthe-art system parameters is shown to be in the region of ∼40%. I. INTRODUCTIONMassive multiple-input multiple-output (MIMO) is considered a de facto technology for the emerging fifth-generation (5G) cellular networks [1], [2]. The distinguishing characterstic of this type of deployment -also known as large scale antenna system (LSAS) -is that the base stations (BSs) equipped with hundreds of antennas communicate with multiple user equipments (UEs) over the same time/frequency bins. Massive MIMO cellular networks, via multiplexing multiple terminals and directing power where it is needed, are thus capabe of achieving much higher spectral and energy efficiencies over the existing long-term-evolution (LTE) standards [3].Another candidate technology for the next generation of wireless systems involves the simultaneous transmission and reception of information over the same radio resources, i.e., full-duplex (FD) communications [4]. This approach has in the past been deemed as practically infeasible due to the overwhelming self-interference (SI) which arises due to the bidirectional functionality. The rapid advancements in the family of techniques used for mitigating SI has however rendered the practical application of FD increasingly more viable, see, e.g., [5] for information on real-time point-to-point FD prototypes.The large scale adoption of full-duplexing, e.g., in the context of cellular networks, is however not straightforward and largely remains in its infancy. The main challenge lies in the introduction of SI as well as cross-mode interference

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Performance analysis of multiuser massive MIMO with multi-antenna users: Asymptotic data rate and its application

2023

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Antenna Ratio for Sum-Rate Maximization in Full-Duplex Large-Array Base Station With Half-Duplex Multiantenna Users

Cited by 17 publications

References 19 publications

Spectral efficiency evaluation of full‐duplex mode of communications based on SLNR approach

Spectral efficiency evaluation of full‐duplex mode of communications based on SLNR approach

Design and Analysis of Full-Duplex Massive MIMO Cellular Networks

Performance analysis of multiuser massive MIMO with multi-antenna users: Asymptotic data rate and its application

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