A Survey on Hybrid Beamforming in MmWave Massive MIMO System
Annu Singh,Sunil Joshi +1 more
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TLDR
This paper traces the advances in hybrid beam-forming for mm-wave Massive MIMO communication in the context of hybridbeam-forming architectures, and pre-coding techniques in different channel environment and compared the spectral efficiency of different pre- coding techniques employing different antenna array size at the Base Station.Abstract:
201 DOI: 10.37398/JSR.2021.650126 Abstract: The escalating demand for wireless data traffic has prompted the need to explore the area of spectrum suitable for meeting the expected requirement. Sub 6 GHz is highly occupied so the researchers are moving towards mm-wave where a spectrum range from 30-300 GHz is available. Channel modeling and hybrid beam-forming has become integral part to realize a system in mmwave frequency band. In this paper we trace the advances in hybrid beam-forming for mm-wave Massive MIMO communication in the context of hybrid beam-forming architectures, and pre-coding techniques in different channel environment. We have also compared the spectral efficiency of different pre-coding techniques employing different antenna array size at the Base Station.read more
Citations
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Literature review and research direction towards channel estimation and hybrid pre-coding in mmWave massive MIMO communication systems
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Initial Access Codebook Design and CSI Type-II Feedback for Sub-6GHz 5G NR
TL;DR: In this article , a neural network-based beam codebook optimization algorithm is proposed to improve the performance of the codebook in terms of the received signal power and channel state information (CSI) acquisition process.
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Hybrid Beamforming Scheme for Millimeter-wave Massive MIMO and Dense Small Cell Networks
TL;DR: New radio based millimeter-wave massive MIMO in dense small cells in radio frequency beamforming codebooks is investigated and the system performance is evaluated by the spectral efficiency analysis.
References
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Signal Recovery from Random Measurements Via Orthogonal Matching Pursuit: The Gaussian Case
Joel A. Tropp,Anna C. Gilbert +1 more
TL;DR: In this paper, a greedy algorithm called Orthogonal Matching Pursuit (OMP) was proposed to recover a signal with m nonzero entries in dimension 1 given O(m n d) random linear measurements of that signal.
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Spatially Sparse Precoding in Millimeter Wave MIMO Systems
TL;DR: This paper considers transmit precoding and receiver combining in mmWave systems with large antenna arrays and develops algorithms that accurately approximate optimal unconstrained precoders and combiners such that they can be implemented in low-cost RF hardware.
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Joint Spatial Division and Multiplexing—The Large-Scale Array Regime
TL;DR: JSDM achieves significant savings both in the downlink training and in the CSIT uplink feedback, thus making the use of large antenna arrays at the base station potentially suitable also for frequency division duplexing systems, for which uplink/downlink channel reciprocity cannot be exploited.
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Hybrid Digital and Analog Beamforming Design for Large-Scale Antenna Arrays
Foad Sohrabi,Wei Yu +1 more
TL;DR: This paper establishes that if the number of RF chains is twice the total number of data streams, the hybrid beamforming structure can realize any fully digital beamformer exactly, regardless of the numberOf antenna elements, and shows that such an architecture can approach the performance of a fully digital scheme with much fewer number ofRF chains.
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Alternating Minimization Algorithms for Hybrid Precoding in Millimeter Wave MIMO Systems
TL;DR: Treating the hybrid precoder design as a matrix factorization problem, effective alternating minimization (AltMin) algorithms will be proposed for two different hybrid precoding structures, i.e., the fully-connected and partially-connected structures, and simulation comparisons between the two hybrid precode structures will provide valuable design insights.