Performance of hybrid beamforming for mmW multi-antenna systems in dense urban scenarios

Giménez, Sonia; Roger, Sandra; Martín‐Sacristán, David; Monserrat, José F.; Baracca, Paolo; Braun, Volker; Halbauer, Hardy

doi:10.1109/pimrc.2016.7794692

Cited by 5 publications

(5 citation statements)

References 12 publications

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“…In this framework, the inter-cell interference is canceled by analog beamformer and then the low-dimension digital beamformer demultiplexes the users' data streams by suppressing the intra-cell interference. A fully connected hybrid beamforming is compared with digital beamforming and analog beamforming in a dense urban environment [168]. It has been found that in a particular multi-cell scenario with K multiantenna users and LOS environment, the hybrid beamforming with N RF = 16 gives the performance near to pure digital beamforming with N t = 64.…”

Section: Qr-decompositionmentioning

confidence: 99%

“…Another interesting application would be the application of Kronecker analog beamformer on other antenna configurations, e.g., circular or cylindrical arrays. It is of interest to investigate the performance of hybrid beamforming case study in [168] when different planar array solutions and codebook designs are used with imperfect CSI. Reference [145] considers flat Rayleigh-fading channel which has limited applications in mmWave massive MIMO systems.…”

Section: Future Research Directionsmentioning

confidence: 99%

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A Survey on Hybrid Beamforming Techniques in 5G: Architecture and System Model Perspectives

Ahmed

Khammari

Shahid

et al. 2018

IEEE Commun. Surv. Tutorials

592

297

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The increasing wireless data traffic demands have driven the need to explore suitable spectrum regions for meeting the projected requirements. In the light of this, millimeter wave (mmWave) communication has received considerable attention from the research community. Typically, in fifth generation (5G) wireless networks, mmWave massive multiple-input multipleoutput (MIMO) communications is realized by the hybrid transceivers which combine high dimensional analog phase shifters and power amplifiers with lower-dimensional digital signal processing units. This hybrid beamforming design reduces the cost and power consumption which is aligned with an energyefficient design vision of 5G. In this paper, we track the progress in hybrid beamforming for massive MIMO communications in the context of system models of the hybrid transceivers' structures, the digital and analog beamforming matrices with the possible antenna configuration scenarios and the hybrid beamforming in heterogeneous wireless networks (HetNET). We extend the scope of the discussion by including resource management issues in hybrid beamforming. We explore the suitability of hybrid beamforming methods, both, existing and proposed till first quarter of 2017, and identify the exciting future challenges in this domain.

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Section: Qr-decompositionmentioning

confidence: 99%

Section: Future Research Directionsmentioning

confidence: 99%

A Survey on Hybrid Beamforming Techniques in 5G: Architecture and System Model Perspectives

Ahmed

Khammari

Shahid

et al. 2018

IEEE Commun. Surv. Tutorials

592

297

View full text Add to dashboard Cite

show abstract

“…The potential of these schemes is well-known; however, to the best of the authors’ knowledge, there is not yet a clear view on the performance of the different beamforming alternatives in a complete system with multiple transmission and reception points and a realistic channel model. In this direction, some preliminary tests were carried out for a single-link case in [12] and for a multi-link case in [13]. …”

Section: Introductionmentioning

confidence: 99%

“…System level simulations usually rely on a set of ideal assumptions that may have a non negligible impact on the accuracy of the assessments based on these simulations [13]. One such assumption is the perfect knowledge of the channel state at the transmitter, the receiver or both entities.…”

Section: Introductionmentioning

confidence: 99%

Performance Evaluation of Analog Beamforming with Hardware Impairments for mmW Massive MIMO Communication in an Urban Scenario

Giménez

Roger

Baracca

et al. 2016

Sensors

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The use of massive multiple-input multiple-output (MIMO) techniques for communication at millimeter-Wave (mmW) frequency bands has become a key enabler to meet the data rate demands of the upcoming fifth generation (5G) cellular systems. In particular, analog and hybrid beamforming solutions are receiving increasing attention as less expensive and more power efficient alternatives to fully digital precoding schemes. Despite their proven good performance in simple setups, their suitability for realistic cellular systems with many interfering base stations and users is still unclear. Furthermore, the performance of massive MIMO beamforming and precoding methods are in practice also affected by practical limitations and hardware constraints. In this sense, this paper assesses the performance of digital precoding and analog beamforming in an urban cellular system with an accurate mmW channel model under both ideal and realistic assumptions. The results show that analog beamforming can reach the performance of fully digital maximum ratio transmission under line of sight conditions and with a sufficient number of parallel radio-frequency (RF) chains, especially when the practical limitations of outdated channel information and per antenna power constraints are considered. This work also shows the impact of the phase shifter errors and combiner losses introduced by real phase shifter and combiner implementations over analog beamforming, where the former ones have minor impact on the performance, while the latter ones determine the optimum number of RF chains to be used in practice.

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“…In this thesis, imperfections in digital or analog transmission systems with multiple antennas have not been taken into account, apart from the feedback delay. The literature offers us little analysis on other sources of imperfection, although in [124], for example, it is shown that certain problems of implementation of the phase shifters can have a serious effect on the accuracy of the codewords. This issue should also be investigated in future work.…”

Section: Future Research Directionsmentioning

confidence: 99%

Beam Tracking Strategies for 5G New Radio Networks Operating in the Millimetre Wave Bands

Claveras¹

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Performance of hybrid beamforming for mmW multi-antenna systems in dense urban scenarios

Cited by 5 publications

References 12 publications

A Survey on Hybrid Beamforming Techniques in 5G: Architecture and System Model Perspectives

A Survey on Hybrid Beamforming Techniques in 5G: Architecture and System Model Perspectives

Performance Evaluation of Analog Beamforming with Hardware Impairments for mmW Massive MIMO Communication in an Urban Scenario

Beam Tracking Strategies for 5G New Radio Networks Operating in the Millimetre Wave Bands

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