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On the Theoretical Limits of Beam Steering in mmWave Massive MIMO Channels
[article]
2019
arXiv
pre-print
Preserved Fulltext
However, we show in this paper, that even with high number of transmit antennas, the HBF can achieve better Spectral Efficiency (SE) compared to the MU ABS even in pure Line of Sight (LoS) channels. ...
On the other hand, we highlight that the HBF's SE scales with the transmit SNR even in high SNR regime. ...
Up to our knowledge only a few papers have been involved on the statistical signal processing analysis of such channels [15] , [16] , [20] which leaves a gap in the current literature of mmWave MIMO ...
arXiv:1901.11404v1
fatcat:isnvktep2veihgyn6hlghxzufe
On the Theoretical Limits of Beam Steering in mmWave Massive MIMO Channels
2019
2019 IEEE 30th Annual International Symposium on Personal, Indoor and Mobile Radio Communications (PIMRC)
Preserved Fulltext
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However, we show in this paper, that even with high number of transmit antennas, the HBF can achieve better Spectral Efficiency (SE) compared to the MU ABS even in pure Line of Sight (LoS) channels. ...
On the other hand, we highlight that the HBF's SE scales with the transmit SNR even in high SNR regime. ...
Up to our knowledge only a few papers have been involved on the statistical signal processing analysis of such channels [15] , [16] , [20] which leaves a gap in the current literature of mmWave MIMO ...
doi:10.1109/pimrc.2019.8904228
dblp:conf/pimrc/ShehataCH19
fatcat:twgnuplla5crpmexmsz6k5zw6m
Codebook Design for Channel Feedback in Lens-Based Millimeter-Wave Massive MIMO Systems
[article]
2017
arXiv
pre-print
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The number of radio frequency (RF) chains can be reduced through beam selection in lens-based millimeter-wave (mmWave) massive MIMO systems, where the equivalent channel between RF chains and multiple ...
Specifically, we firstly utilize the limited scattering property of mmWave channels to generate the high-dimensional vectors in the channel subspace. ...
SYSTEM MODEL In this section, we briefly introduce the typical mmWave massive MIMO channel model at first. Then, we present the equivalent channel in lens-based mmWave massive MIMO systems.
A. ...
arXiv:1703.00143v1
fatcat:5lvlsim7bbffhboymrf5sy5vim
A Compact, Wide Field-of-View Gradient-index Lens Antenna for Millimeter-wave MIMO on Mobile Devices
[article]
2017
arXiv
pre-print
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We discuss the need for high-contrast permittivity ranges to achieve wide scan angles which are essential for leveraging the full capability of massive MIMO systems (e.g., full stream capacity). ...
We discuss the design of a compact and low-cost lens-based beam-forming antenna for small form-factor platforms such as small-cells and mobile devices in 5G wireless networks. ...
WIDE-ANGLE BEAM-STEERING OF REALISTIC LENSES In this section we use Ansys HFSS to explore the performance limitations of such a beam-steering lens antenna under the above fabrication limitations. ...
arXiv:1708.05703v1
fatcat:rs5lszq22vg6rdzkw3zooj2tae
Physical Layer Key Generation in 5G Wireless Networks
[article]
2019
arXiv
pre-print
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The new solutions include applying the high signal directionality in beamforming to resist co-located eavesdroppers, utilizing the sparsity of millimeter wave (mmWave) channel to achieve a low bit disagreement ...
Finally, the future trends of physical layer key generation in 5G and beyond communications are discussed. ...
Due to the sparsity of mmWave channel and the narrow beam width of the massive MIMO communication system, the eavesdropper needs to approach to Alice or Bob so that the narrow beams from certain directions ...
arXiv:1908.10362v1
fatcat:ptcddk55pzf5negbecwuam4nfu
Spatio-Radio Resource Management and Hybrid Beamforming for Limited Feedback Massive MIMO Systems
2019
Electronics
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To reduce the channel state information (CSI) feedback of massive MIMO, we utilize the channel covariance-based RF precoding and beam selection. ...
The joint beams, users scheduling and limited feedbacK-based hybrid precoding increases the sum-rate by 27 . 6 % compared to the sum-rate of one-group case, and reduce the feedback overhead by 62 . 5 % ...
The large number of antennas in massive MIMO leads to the challenging issue of channel estimation in mmWave communications. ...
doi:10.3390/electronics8101061
fatcat:lqwxlclmizcphdhjxz56hdvyma
A Comprehensive Survey on Millimeter Wave Communications for Fifth-Generation Wireless Networks: Feasibility and Challenges
2020
IEEE Access
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Lastly, we explore the integration of SWIPT in mmWave massive MIMO systems, with limited RF chains, to realize spectrally and energy-efficient communications. ...
Fourth, we track evolution and advancements in hybrid beamforming for massive MIMO systems in terms of system models of hybrid precoding architectures, hybrid analog and digital precoding/combining matrices ...
However, there is limited literature on the topic of limiting the RF complexity of beamspace massive MIMO systems beyond the beamspace transformation and beam selection. ...
doi:10.1109/access.2020.2984204
fatcat:akymafkbcrevtejtgfywrkhcre
Channel Feedback Codebook Design for Millimeter-Wave Massive MIMO Systems Relying on Lens Antenna Array
2018
IEEE Wireless Communications Letters
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The recently proposed millimeter-wave (mmWave) massive MIMO system relying on a lens antenna array (LAA) significantly reduces the number of radio frequency (RF) chains using beam selection. ...
To fill this gap, in this paper, we propose a reduced-dimensional subspace codebook (RDSC) for LAA-aided mmWave massive MIMO systems. ...
To the best of our knowledge, there is no dedicated codebook design for channel feedback in mmWave massive MIMO systems relying on LAAs. ...
doi:10.1109/lwc.2018.2818130
fatcat:ckbribld7fej3lxnlecrzl4yxq
An Overview of Enhanced Massive MIMO with Array Signal Processing Techniques
2019
IEEE Journal on Selected Topics in Signal Processing
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2019 pre-print arXiv:1907.09944v2 fatcat:i5ddzshuqzgwph4ei2fuhp2geaOther Versions
In the past ten years, there have been tremendous research progresses on massive MIMO systems, most of which stand from the communications viewpoint. ...
In all, the target of this paper is to present an overview of recent progress on merging array signal processing into massive MIMO communications as well as its promising future directions. ...
In contrast, the "bandwidth" in the massive MIMO systems is defined on the angle/beam domain and depends on the users spatial location. ...
doi:10.1109/jstsp.2019.2934931
fatcat:fvimd5awz5gzxo2gngidcbtora
Dynamic mmWave Channel Emulation in a Cost-Effective MPAC with Dominant-Cluster Concept
[article]
2021
arXiv
pre-print
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In this contribution, we firstly illustrate the dominant-cluster(s) concept, where the non-dominant clusters in the mmWave channels are pruned, for mmWave 5G devices applying massive MIMO beamforming. ...
It is essential to design and test mmWave 5G devices under various realistic scenarios, since the radio propagation channels pose intrinsic limitations on the performance. ...
A massive MIMO device is expected to establish multiple narrow beams to multiple users and dynamically steer the beams as users move or channel conditions change. ...
arXiv:2008.09487v2
fatcat:k6hgaiujhneebhiyjbzhlbjqkm
A Survey on Hybrid Beamforming Techniques in 5G: Architecture and System Model Perspectives
2018
IEEE Communications Surveys and Tutorials
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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 ...
Index Terms-hybrid beamforming, mmWave, massive MIMO, HetNet, radio access network. ...
Reference [145] considers flat Rayleigh-fading channel which has limited applications in mmWave massive MIMO systems. ...
doi:10.1109/comst.2018.2843719
fatcat:v7kmfmaxrfeeti7hcwsjjf5fda
Millimeter-Wave for Unmanned Aerial Vehicles Networks: Enabling Multi-Beam Multi-Stream Communications
[article]
2018
arXiv
pre-print
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In terms of the field trial tests of the first UAV-ABS of its kind in the world, multi-giga-bit-per-second data rate of uplink and downlink is verified with good stability and reliability against mildly ...
) prototype which works at millimeter-wave (mmWave) bands and enable multi-beam mul-ti-stream communications. ...
ACKNOWLEDGMENTS The authors would like to acknowledge Natural Sciences and Engineering Research Council of Canada, and Franklin Lu for help on the UAV field tests. ...
arXiv:1810.06923v1
fatcat:7yltji52vnahfa24yxbrz7m2bi
Beam-space Multiplexing: Practice, Theory, and Trends-From 4G TD-LTE, 5G, to 6G and Beyond
[article]
2020
arXiv
pre-print
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Finally, the future trends of beam-space multiplexing in 6G and beyond are discussed, including massive beamforming for extremely large-scale MIMO (XL-MIMO), low earth orbit (LEO) satellites communication ...
Specifically, we provide a comprehensive comparison with the antenna-space multiplexing in terms of theoretical analysis, channel state information acquisition, and engineering implementation constraints ...
The authors would like to give thanks to Prof. Dake Liu of Beijing Institute of Technology and the anonymous reviewers for reviewing the manuscript. ...
arXiv:2001.05021v1
fatcat:b4chb4guzjbdvg37d52pkfpzka
Doubly Massive mmWave MIMO Systems: Using Very Large Antenna Arrays at Both Transmitter and Receiver
[article]
2016
arXiv
pre-print
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This paper introduces the concept of doubly massive MIMO systems at mmWave, showing that at mmWave the fundamentals of the massive MIMO regime are completely different from what happens at conventional ...
The implications of the doubly massive MIMO regime on the transceiver processing, on the system energy efficiency and on the system throughput are also discussed. ...
and post-coding matrices are unit-norm beam-steering vectors expressed as in Eq ...
arXiv:1607.07234v1
fatcat:55as4h2hnfgmvban3z4a63da5q
Bandit Inspired Beam Searching Scheme for mmWave High-Speed Train Communications
[article]
2018
arXiv
pre-print
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Using the knowledge of reinforcement learning, the beam searching problem of mmWave HST communications is formulated as a multi-armed bandit (MAB) problem and a bandit inspired beam searching scheme is ...
The regret analysis indicates that the proposed schemes can approach the theoretical limit very quickly, which is further verified by simulation results. ...
In [24] , a deep learning based channel estimation algorithm was proposed for beamspace mmWave massive MIMO systems. ...
arXiv:1810.06150v1
fatcat:3ekd66kvvvhubnbqqjzzs3mqz4
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