Performance Analysis and Algorithm Designs for Transmit Antenna Selection in Linearly Precoded Multiuser MIMO Systems

Lin, Pu-Hsuan; Tsai, Shang-Ho

doi:10.1109/tvt.2012.2190435

Cited by 49 publications

(54 citation statements)

References 33 publications

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“…However, previous works on antenna selection for low dimensional systems[42] showed that the performances of decremental approaches are close to the ones achieved by exhaustive search methods.…”

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confidence: 81%

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Low RF-Complexity Millimeter-Wave Beamspace-MIMO Systems by Beam Selection

Amadori

Masouros

2015

IEEE Trans. Commun.

292

254

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Communications in millimeter-wave (mm-wave) spectrum (30-300 GHz) have experienced a continuous increase in relevance for short-range, high-capacity wireless links, because of the wider bandwidths they are able to provide. In this work, we introduce a new mm-wave frequency transmission scheme that exploits a combination of the concepts of beamspace multi-input multi-output (B-MIMO) communications and beam selection to provide near-optimal performances with a low hardwarecomplexity transceiver. While large-scale MIMO approaches in mm-wave are affected by high dimensional signal space that increases considerably both complexity and costs of the system, the proposed scheme is able to achieve near-optimal performances with a reduced radio-frequency (RF) complexity thanks to beam selection. We evaluate the advantages of the proposed scheme via capacity computations, comparisons of numbers of RF chains required and by studying the trade-off between spectral and power efficiency. Our analytical and simulation results show that the proposed scheme is capable of offering a significant reduction in RF complexity with a realistic low-cost approach, for a given performance. In particular, we show that the proposed beam selection algorithms achieve higher power efficiencies than a full system where all beams are utilized.

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confidence: 81%

“…Results obtained in (43), (44) can be generalized to identify the global loss caused by the selection of a subset of beams as where Hence the loss is a function of γ and approaches an upper bound [42] as γ → ∞, defined in the following equation…”

Section: Performance Analysis-spectral Efficiency Lossmentioning

confidence: 99%

Low RF-Complexity Millimeter-Wave Beamspace-MIMO Systems by Beam Selection

Amadori

Masouros

2015

IEEE Trans. Commun.

292

254

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“…This chapter compares the performance and complexity of the proposed algorithms with those of existing methods: capacity-based reduced-complexity selection (CBRCS) [11], norm-based selection (NBS) [12], and no antenna selection ( = ). The Shannon spectral efficiency (SE) for the transmit-antenna selection schemes is evaluated and compared.…”

Section: Performance Evaluationmentioning

confidence: 99%

“…Even though the performance of this exhaustive search can be optimized, its complexity still increases linearly with the total number of antennas and the number of antennas to be selected. Therefore, much research on transmission antenna selection schemes has been performed, in an attempt to achieve lower complexity than that of exhaustive search methods [8][9][10][11][12]. With that purpose, greedy search schemes were proposed in [11].…”

Section: Introductionmentioning

confidence: 99%

“…Therefore, much research on transmission antenna selection schemes has been performed, in an attempt to achieve lower complexity than that of exhaustive search methods [8][9][10][11][12]. With that purpose, greedy search schemes were proposed in [11]. The simplest method is to select the transmitting antenna by computing the norm of the thermal vector of the entire channel; however, instead of simply reducing complexity, this also reduces the user's achievable rate of transmission.…”

Section: Introductionmentioning

confidence: 99%

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Enhanced Transmit-Antenna Selection Schemes for Multiuser Massive MIMO Systems

Lee

Kim

et al. 2017

Wireless Communications and Mobile Computing

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Massive multiple-input multiple-output (MIMO) systems are a core technology designed to achieve the performance objectives defined for 5G wireless communications. They achieve high spectral efficiency, reliability, and diversity gain. However, the many radio frequency chains required in base stations equipped with a high number of transmit antennas imply high hardware costs and computational complexity. Therefore, in this paper, we investigate the use of a transmit-antenna selection scheme, with which the number of required radio frequency chains in the base station can be reduced. This paper proposes two efficient transmit-antenna selection (TAS) schemes designed to consider a trade-off between performance and computational complexity in massive MIMO systems. The spectral efficiency and computational complexity of the proposed schemes are analyzed and compared with existing TAS schemes, showing that the proposed algorithms increase the TAS performance and can be used in practical systems. Additionally, the obtained results enable a better understanding of how TAS affects massive MIMO systems.

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A low‐complexity architecture using diversity techniques for Internet of Vehicles with enhanced radio‐frequency performance

Tsai

Chen

2019

Micro & Optical Tech Letters

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In this article, we present a new architecture for the Internet of Vehicles (IoVs) that feature reduced system complexity and enhanced radio‐frequency (RF) performance. The proposed system requires no complex coding or selection algorithms, yet it significantly improves the received signal strength. We implement dual‐port antennas comprising a linearly polarized (LP) antenna and a circularly polarized (CP) antenna, which minimize the polarization loss between multipath signals and the receiving antenna. Using Wi‐Fi communications, we designed, fabricated, and examined a prototype system comprising seven circuit modules that employ spatial diversity and revised polarization diversity simultaneously. We test its performance using two antenna combinations with distinct peak gain characteristics. Our results show these antennas have highly desirable impedance matching and radiation properties and enhanced received signal strength compared to conventional techniques. As such, the proposed system can greatly improve signal quality and reliability in non‐line‐of‐sight (NLOS) IoV scenarios.

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Performance Analysis and Algorithm Designs for Transmit Antenna Selection in Linearly Precoded Multiuser MIMO Systems

Cited by 49 publications

References 33 publications

Low RF-Complexity Millimeter-Wave Beamspace-MIMO Systems by Beam Selection

Low RF-Complexity Millimeter-Wave Beamspace-MIMO Systems by Beam Selection

Enhanced Transmit-Antenna Selection Schemes for Multiuser Massive MIMO Systems

A low‐complexity architecture using diversity techniques for Internet of Vehicles with enhanced radio‐frequency performance

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