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Taxonomy and Performance Evaluation of Hybrid Beamforming for 5G and Beyond Systems

Mohamed Rihan, Tarek Abed Soliman, Chen Xu, Lei Huang, Moawad I. Dessouky
<span title="">2020</span> <i title="Institute of Electrical and Electronics Engineers (IEEE)"> <a target="_blank" rel="noopener" href="https://fatcat.wiki/container/q7qi7j4ckfac7ehf3mjbso4hne" style="color: black;">IEEE Access</a> </i> &nbsp;
information (CSI) availability, frequency bandwidth, architecture complexity, analog beamformer components, number of users, connectivity to RF chains, and the digital and analog beamforming design.  ...  With the motivation of giving more insights and in-deep technical recommendations to B5G network designers regarding hybrid beamforming, we present a hybrid beamforming taxonomy in terms of channel state  ...  BEAM TRAINING AND FEEDBACK The hybrid precoders and combiners design is typically constrained with the constant-gain analog phase shifters and the low-resolution quantized phase control.  ... 
<span class="external-identifiers"> <a target="_blank" rel="external noopener noreferrer" href="https://doi.org/10.1109/access.2020.2984548">doi:10.1109/access.2020.2984548</a> <a target="_blank" rel="external noopener" href="https://fatcat.wiki/release/tkd3utgslramjdl7ua3smwcnhu">fatcat:tkd3utgslramjdl7ua3smwcnhu</a> </span>
<a target="_blank" rel="noopener" href="https://web.archive.org/web/20201107140549/https://ieeexplore.ieee.org/ielx7/6287639/8948470/09051735.pdf" title="fulltext PDF download" data-goatcounter-click="serp-fulltext" data-goatcounter-title="serp-fulltext"> <button class="ui simple right pointing dropdown compact black labeled icon button serp-button"> <i class="icon ia-icon"></i> Web Archive [PDF] <div class="menu fulltext-thumbnail"> <img src="https://blobs.fatcat.wiki/thumbnail/pdf/57/36/5736bf43915296697aba76511036119f8ccde46d.180px.jpg" alt="fulltext thumbnail" loading="lazy"> </div> </button> </a> <a target="_blank" rel="external noopener noreferrer" href="https://doi.org/10.1109/access.2020.2984548"> <button class="ui left aligned compact blue labeled icon button serp-button"> <i class="unlock alternate icon" style="background-color: #fb971f;"></i> ieee.com </button> </a>

Energy-Efficient Hybrid Symbol-Level Precoding for Large-Scale mmWave Multiuser MIMO Systems

Alireza Haqiqatnejad, Farbod Kayhan, Bjorn Ottersten
<span title="">2021</span> <i title="Institute of Electrical and Electronics Engineers (IEEE)"> <a target="_blank" rel="noopener" href="https://fatcat.wiki/container/dha3bnxvkvhslj74k332qi2ewa" style="color: black;">IEEE Transactions on Communications</a> </i> &nbsp;
Index Terms-Energy efficiency, hybrid analog-digital precoding, massive multiuser MIMO, mmWave communications, phase shifter selection, symbol-level precoding.  ...  thanks to the phase shifter selection approach, compared to the fully-digital and the state-of-the-art hybrid symbol-level schemes.  ...  beamforming using RF phase shifters [9] - [11] , antenna (sub-set) selection [12] , [13] , quantized fully-digital precoding via low-resolution (especially one-bit) digital-to-analog converters (DAC  ... 
<span class="external-identifiers"> <a target="_blank" rel="external noopener noreferrer" href="https://doi.org/10.1109/tcomm.2021.3058967">doi:10.1109/tcomm.2021.3058967</a> <a target="_blank" rel="external noopener" href="https://fatcat.wiki/release/77xfqfplljakpiazuidhuihkky">fatcat:77xfqfplljakpiazuidhuihkky</a> </span>
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Joint Hybrid Precoder and Combiner Design for mmWave Spatial Multiplexing Transmission [article]

Zihuan Wang, Ming Li, Xiaowen Tian, Qian Liu
<span title="2017-04-26">2017</span> <i > arXiv </i> &nbsp; <span class="release-stage" >pre-print</span>
In this paper, we consider the problem of codebook-based joint analog-digital hybrid precoder and combiner design for spatial multiplexing transmission in a mmWave multiple-input multiple-output (MIMO)  ...  We propose to jointly select analog precoder and combiner pair for each data stream successively aiming at maximizing the channel gain while suppressing the interference between different data streams.  ...  Therefore, low-resolution phase shifters with discrete/quantized tunable phases are cost-effective and typically adopted in realistic systems.  ... 
<span class="external-identifiers"> <a target="_blank" rel="external noopener" href="https://arxiv.org/abs/1704.07988v1">arXiv:1704.07988v1</a> <a target="_blank" rel="external noopener" href="https://fatcat.wiki/release/z6e3vhxvprcylccy5bwthezmiy">fatcat:z6e3vhxvprcylccy5bwthezmiy</a> </span>
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A Survey on Hybrid Beamforming Techniques in 5G: Architecture and System Model Perspectives

Irfan Ahmed, Hedi Khammari, Adnan Shahid, Ahmed Musa, Kwang Soon Kim, Eli De Poorter, Ingrid Moerman
<span title="">2018</span> <i title="Institute of Electrical and Electronics Engineers (IEEE)"> <a target="_blank" rel="noopener" href="https://fatcat.wiki/container/b4kxurpz5vbn7gog6wq32vliii" style="color: black;">IEEE Communications Surveys and Tutorials</a> </i> &nbsp;
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.  ...  Antenna selection with analog combining. Antenna selection in subsets with analog combining. Antenna selection.  ... 
<span class="external-identifiers"> <a target="_blank" rel="external noopener noreferrer" href="https://doi.org/10.1109/comst.2018.2843719">doi:10.1109/comst.2018.2843719</a> <a target="_blank" rel="external noopener" href="https://fatcat.wiki/release/v7kmfmaxrfeeti7hcwsjjf5fda">fatcat:v7kmfmaxrfeeti7hcwsjjf5fda</a> </span>
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Hybrid Digital and Analog Beamforming Design for Large-Scale Antenna Arrays

Foad Sohrabi, Wei Yu
<span title="">2016</span> <i title="Institute of Electrical and Electronics Engineers (IEEE)"> <a target="_blank" rel="noopener" href="https://fatcat.wiki/container/aznf273kcvcbfjcdeghr3xjd6i" style="color: black;">IEEE Journal on Selected Topics in Signal Processing</a> </i> &nbsp;
Numerical simulations show that the proposed schemes are effective even when phase shifters with very low resolution are used.  ...  an RF beamformer implemented using analog phase shifters.  ...  However, this approach is not effective for systems with very low resolution phase shifters [34] .  ... 
<span class="external-identifiers"> <a target="_blank" rel="external noopener noreferrer" href="https://doi.org/10.1109/jstsp.2016.2520912">doi:10.1109/jstsp.2016.2520912</a> <a target="_blank" rel="external noopener" href="https://fatcat.wiki/release/pp3kh4yncbhsraxgcvzrd3yofm">fatcat:pp3kh4yncbhsraxgcvzrd3yofm</a> </span>
<a target="_blank" rel="noopener" href="https://web.archive.org/web/20200908075551/https://arxiv.org/pdf/1601.06814v1.pdf" title="fulltext PDF download [not primary version]" data-goatcounter-click="serp-fulltext" data-goatcounter-title="serp-fulltext"> <button class="ui simple right pointing dropdown compact black labeled icon button serp-button"> <i class="icon ia-icon"></i> Web Archive [PDF] <span style="color: #f43e3e;">&#10033;</span> <div class="menu fulltext-thumbnail"> <img src="https://blobs.fatcat.wiki/thumbnail/pdf/a1/81/a181a93d9f4dd820c26f1a5f33c9e5efbfd1ebfe.180px.jpg" alt="fulltext thumbnail" loading="lazy"> </div> </button> </a> <a target="_blank" rel="external noopener noreferrer" href="https://doi.org/10.1109/jstsp.2016.2520912"> <button class="ui left aligned compact blue labeled icon button serp-button"> <i class="external alternate icon"></i> ieee.com </button> </a>

Energy-Efficient Hybrid Symbol-Level Precoding via Phase Shifter Selection in mmWave MU-MIMO Systems

Alireza Haqiqatnejad, Farbod Kayhan, Bjorn Ottersten
<span title="">2020</span> <i title="IEEE"> GLOBECOM 2020 - 2020 IEEE Global Communications Conference </i> &nbsp;
We consider a hybrid analog-digital architecture with phase shifter selection where a small-sized baseband precoder is followed by two successive networks of analog on-off switches and variable phase shifters  ...  Index Terms-Energy efficiency, hybrid symbol-level precoding, multiuser mmWave massive MIMO, phase shifter selection.  ...  The proposed Hybrid BB+SW SLP with phase shifter selection outperforms the other schemes either with infinite or low resolution phase shifters.  ... 
<span class="external-identifiers"> <a target="_blank" rel="external noopener noreferrer" href="https://doi.org/10.1109/globecom42002.2020.9322573">doi:10.1109/globecom42002.2020.9322573</a> <a target="_blank" rel="external noopener" href="https://fatcat.wiki/release/tlmwbdc53nal7ml7gwlfagrzcq">fatcat:tlmwbdc53nal7ml7gwlfagrzcq</a> </span>
<a target="_blank" rel="noopener" href="https://web.archive.org/web/20210503190605/https://orbilu.uni.lu/bitstream/10993/46382/1/SLP_HYBRID.pdf" title="fulltext PDF download" data-goatcounter-click="serp-fulltext" data-goatcounter-title="serp-fulltext"> <button class="ui simple right pointing dropdown compact black labeled icon button serp-button"> <i class="icon ia-icon"></i> Web Archive [PDF] <div class="menu fulltext-thumbnail"> <img src="https://blobs.fatcat.wiki/thumbnail/pdf/59/1e/591eddee1da76d51acf1cc2accb3dfedc6706b35.180px.jpg" alt="fulltext thumbnail" loading="lazy"> </div> </button> </a> <a target="_blank" rel="external noopener noreferrer" href="https://doi.org/10.1109/globecom42002.2020.9322573"> <button class="ui left aligned compact blue labeled icon button serp-button"> <i class="external alternate icon"></i> ieee.com </button> </a>

Genetic Algorithm Assisted Hybrid Beamforming for Wireless Fronthaul [article]

Shangbin Wu
<span title="2018-03-07">2018</span> <i > arXiv </i> &nbsp; <span class="release-stage" >pre-print</span>
The digital precoder of the proposed hybrid SLNR beamforming is expressed in closed-form. Highly limited phase resolution (one-bit resolution) is assumed at the phase shifters at the analog precoder.  ...  Performance of the proposed hybrid SLNR beamforming with limited phase resolution at the analog precoder can achieve performance close to digital beamforming in single cell wireless fronthaul scenarios  ...  Iterative analog precoder design with quantization was proposed in [10] , where the phase of each phase shifter can only be selected from a finite set of values.  ... 
<span class="external-identifiers"> <a target="_blank" rel="external noopener" href="https://arxiv.org/abs/1803.02741v1">arXiv:1803.02741v1</a> <a target="_blank" rel="external noopener" href="https://fatcat.wiki/release/wonc7anhungy3cesopxgumoyvq">fatcat:wonc7anhungy3cesopxgumoyvq</a> </span>
<a target="_blank" rel="noopener" href="https://web.archive.org/web/20191021224018/https://arxiv.org/pdf/1803.02741v1.pdf" title="fulltext PDF download" data-goatcounter-click="serp-fulltext" data-goatcounter-title="serp-fulltext"> <button class="ui simple right pointing dropdown compact black labeled icon button serp-button"> <i class="icon ia-icon"></i> Web Archive [PDF] <div class="menu fulltext-thumbnail"> <img src="https://blobs.fatcat.wiki/thumbnail/pdf/c5/04/c50495a831b0d79618161e23beaf3316c64b8801.180px.jpg" alt="fulltext thumbnail" loading="lazy"> </div> </button> </a> <a target="_blank" rel="external noopener" href="https://arxiv.org/abs/1803.02741v1" title="arxiv.org access"> <button class="ui compact blue labeled icon button serp-button"> <i class="file alternate outline icon"></i> arxiv.org </button> </a>

1-bit Phase Shifters for Large-Antenna Full-Duplex mmWave Communications

Jose Mairton B. Da Silva, Ashutosh Sabharwal, Gabor Fodor, Carlo Fischione
<span title="">2020</span> <i title="Institute of Electrical and Electronics Engineers (IEEE)"> <a target="_blank" rel="noopener" href="https://fatcat.wiki/container/ra4txhbrwnbwzk3lwinyjovpbe" style="color: black;">IEEE Transactions on Wireless Communications</a> </i> &nbsp;
Numerical results indicate that LowRes using low-resolution phase shifters perform within 3% of the optimal solution that uses infinite phase shifter resolution.  ...  Millimeter-wave using large-antenna arrays is a key technological component for the future cellular systems, where it is expected that hybrid beamforming along with quantized phase shifters will be used  ...  Problem Formulation Our goal is to obtain a joint beamforming design using low-resolution phase shifters for self-interference suppression and downlink beamforming.  ... 
<span class="external-identifiers"> <a target="_blank" rel="external noopener noreferrer" href="https://doi.org/10.1109/twc.2020.3006959">doi:10.1109/twc.2020.3006959</a> <a target="_blank" rel="external noopener" href="https://fatcat.wiki/release/vfapdcurynbg5ldbqmk3igsyfi">fatcat:vfapdcurynbg5ldbqmk3igsyfi</a> </span>
<a target="_blank" rel="noopener" href="https://web.archive.org/web/20210429155927/https://ieeexplore.ieee.org/ielx7/7693/9218016/09139277.pdf" title="fulltext PDF download" data-goatcounter-click="serp-fulltext" data-goatcounter-title="serp-fulltext"> <button class="ui simple right pointing dropdown compact black labeled icon button serp-button"> <i class="icon ia-icon"></i> Web Archive [PDF] <div class="menu fulltext-thumbnail"> <img src="https://blobs.fatcat.wiki/thumbnail/pdf/e9/67/e96779ce9c302c0dfa4f73788e1270e3e7f1b6a0.180px.jpg" alt="fulltext thumbnail" loading="lazy"> </div> </button> </a> <a target="_blank" rel="external noopener noreferrer" href="https://doi.org/10.1109/twc.2020.3006959"> <button class="ui left aligned compact blue labeled icon button serp-button"> <i class="external alternate icon"></i> ieee.com </button> </a>

Low RF-Complexity Technologies to Enable Millimeter-Wave MIMO with Large Antenna Array for 5G Wireless Communications [article]

Xinyu Gao, Linglong Dai, Akbar M. Sayeed
<span title="2017-10-01">2017</span> <i > arXiv </i> &nbsp; <span class="release-stage" >pre-print</span>
Then, we discuss two promising low RF-complexity technologies for mmWave MIMO systems in detail, i.e., phased array based hybrid precoding (PAHP) and lens array based hybrid precoding (LAHP), including  ...  Millimeter-wave (mmWave) MIMO with large antenna array has attracted considerable interests from academic and industry communities, as it can provide larger bandwidth and higher spectrum efficiency.  ...  training, which involves an iterative and joint design between the transmitter and receiver.  ... 
<span class="external-identifiers"> <a target="_blank" rel="external noopener" href="https://arxiv.org/abs/1607.04559v3">arXiv:1607.04559v3</a> <a target="_blank" rel="external noopener" href="https://fatcat.wiki/release/ik5lglgesvf6hfh5it32ku6opi">fatcat:ik5lglgesvf6hfh5it32ku6opi</a> </span>
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Spectrum and Energy Efficiency Optimization for Hybrid Precoding-Based SWIPT-Enabled mmWave mMIMO-NOMA Systems

Anthony Ngozichukwuka Uwaechia, Nor Muzlifah Mahyuddin
<span title="">2020</span> <i title="Institute of Electrical and Electronics Engineers (IEEE)"> <a target="_blank" rel="noopener" href="https://fatcat.wiki/container/q7qi7j4ckfac7ehf3mjbso4hne" style="color: black;">IEEE Access</a> </i> &nbsp;
antennas, employing low-cost phase shifters.  ...  To solve this challenging problem, a promising solution is to substitute power-hungry high-resolution phase shifters (e.g., 8 − 12 bits) with low power low-resolution phase shifters (e.g., 1 − 4 bits)  ... 
<span class="external-identifiers"> <a target="_blank" rel="external noopener noreferrer" href="https://doi.org/10.1109/access.2020.3013305">doi:10.1109/access.2020.3013305</a> <a target="_blank" rel="external noopener" href="https://fatcat.wiki/release/mqucahrrvjea5eudbt4hmzhoei">fatcat:mqucahrrvjea5eudbt4hmzhoei</a> </span>
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Channel estimation and hybrid combining for mmWave: Phase shifters or switches?

Roi Mendez-Rial, Cristian Rusu, Ahmed Alkhateeb, Nuria Gonzalez-Prelcic, Robert W. Heath
<span title="">2015</span> <i title="IEEE"> <a target="_blank" rel="noopener" href="https://fatcat.wiki/container/qpopm6uubfd4ddim7xa2kl7xpm" style="color: black;">2015 Information Theory and Applications Workshop (ITA)</a> </i> &nbsp;
Using power consumption calculations and achievable rates, we compare the performance of hybrid combining with antenna switching and phase shifting, showing that antenna selection is preferred in a range  ...  Given the channel estimate, we propose a novel algorihtm that jointly designs the antenna subsets selected and the baseband combining.  ...  Hybrid Antenna Selection (HAS) We propose an algorithm for the joint design of an antenna subset selection together with appropriate baseband processing at the receiver such that the capacity of the communication  ... 
<span class="external-identifiers"> <a target="_blank" rel="external noopener noreferrer" href="https://doi.org/10.1109/ita.2015.7308971">doi:10.1109/ita.2015.7308971</a> <a target="_blank" rel="external noopener" href="https://dblp.org/rec/conf/ita/Mendez-RialRAPH15.html">dblp:conf/ita/Mendez-RialRAPH15</a> <a target="_blank" rel="external noopener" href="https://fatcat.wiki/release/hw7zy2q45rdhrfoe2yf4e4yrt4">fatcat:hw7zy2q45rdhrfoe2yf4e4yrt4</a> </span>
<a target="_blank" rel="noopener" href="https://web.archive.org/web/20170829034815/http://ita.ucsd.edu/workshop/15/files/paper/paper_3836.pdf" title="fulltext PDF download" data-goatcounter-click="serp-fulltext" data-goatcounter-title="serp-fulltext"> <button class="ui simple right pointing dropdown compact black labeled icon button serp-button"> <i class="icon ia-icon"></i> Web Archive [PDF] <div class="menu fulltext-thumbnail"> <img src="https://blobs.fatcat.wiki/thumbnail/pdf/28/ac/28acff10402169e1d3f4dfe49a58da84f342c14a.180px.jpg" alt="fulltext thumbnail" loading="lazy"> </div> </button> </a> <a target="_blank" rel="external noopener noreferrer" href="https://doi.org/10.1109/ita.2015.7308971"> <button class="ui left aligned compact blue labeled icon button serp-button"> <i class="external alternate icon"></i> ieee.com </button> </a>

Hybrid MIMO Architectures for Millimeter Wave Communications: Phase Shifters or Switches? [article]

Roi Méndez-Rial, Cristian Rusu, Nuria González-Prelcic, Ahmed Alkhateeb, Robert W. Heath Jr
<span title="2015-12-09">2015</span> <i > arXiv </i> &nbsp; <span class="release-stage" >pre-print</span>
In these architectures, the analog processing network is usually based on variable phase shifters.  ...  We analyze the performance of the new estimation algorithm for hybrid architectures based on phase shifters and switches.  ...  The power consumed by the phase shifters depends on the type and on the resolution of the quantized phases.  ... 
<span class="external-identifiers"> <a target="_blank" rel="external noopener" href="https://arxiv.org/abs/1512.03032v1">arXiv:1512.03032v1</a> <a target="_blank" rel="external noopener" href="https://fatcat.wiki/release/w7smuv5y2jcbfosvpogujuatyq">fatcat:w7smuv5y2jcbfosvpogujuatyq</a> </span>
<a target="_blank" rel="noopener" href="https://web.archive.org/web/20191024094257/https://arxiv.org/pdf/1512.03032v1.pdf" title="fulltext PDF download" data-goatcounter-click="serp-fulltext" data-goatcounter-title="serp-fulltext"> <button class="ui simple right pointing dropdown compact black labeled icon button serp-button"> <i class="icon ia-icon"></i> Web Archive [PDF] <div class="menu fulltext-thumbnail"> <img src="https://blobs.fatcat.wiki/thumbnail/pdf/b3/df/b3dfd569b708278515feedd3e508ad3f2fb39205.180px.jpg" alt="fulltext thumbnail" loading="lazy"> </div> </button> </a> <a target="_blank" rel="external noopener" href="https://arxiv.org/abs/1512.03032v1" title="arxiv.org access"> <button class="ui compact blue labeled icon button serp-button"> <i class="file alternate outline icon"></i> arxiv.org </button> </a>

Dynamic Hybrid Precoding Relying on Twin-Resolution Phase Shifters in Millimeter-Wave Communication Systems [article]

Chenghao Feng, Wenqian Shen, Xinyu Gao, Jianping An, Lajos Hanzo
<span title="2020-11-25">2020</span> <i > arXiv </i> &nbsp; <span class="release-stage" >pre-print</span>
In the latter, we jointly design the phase-shifter network and the hybrid precoding matrix, where the phase of each entry in the analog precoding matrix can be dynamically designed according to the required  ...  The connections between the twin phase shifters having different resolutions and the antennas are either fixed or dynamically configured.  ...  Joint Design of the Phase-shifter Array Pattern and Analog TPC In this subsection, we propose a dynamic hybrid TPC method for jointly designing the phase-shifter array pattern and the analog TPC for the  ... 
<span class="external-identifiers"> <a target="_blank" rel="external noopener" href="https://arxiv.org/abs/2011.12475v1">arXiv:2011.12475v1</a> <a target="_blank" rel="external noopener" href="https://fatcat.wiki/release/4oiwgqud3zbrxc7whhb4rbkana">fatcat:4oiwgqud3zbrxc7whhb4rbkana</a> </span>
<a target="_blank" rel="noopener" href="https://web.archive.org/web/20201129051938/https://arxiv.org/pdf/2011.12475v1.pdf" title="fulltext PDF download" data-goatcounter-click="serp-fulltext" data-goatcounter-title="serp-fulltext"> <button class="ui simple right pointing dropdown compact black labeled icon button serp-button"> <i class="icon ia-icon"></i> Web Archive [PDF] <div class="menu fulltext-thumbnail"> <img src="https://blobs.fatcat.wiki/thumbnail/pdf/0f/0d/0f0d095b691e5678a72e02c98ab46867e1667a23.180px.jpg" alt="fulltext thumbnail" loading="lazy"> </div> </button> </a> <a target="_blank" rel="external noopener" href="https://arxiv.org/abs/2011.12475v1" title="arxiv.org access"> <button class="ui compact blue labeled icon button serp-button"> <i class="file alternate outline icon"></i> arxiv.org </button> </a>

A New Design of Codebook for Hybrid Precoding in Millimeter-Wave Massive MIMO Systems

Gang Liu, Honggui Deng, Kai Yang, Zaoxing Zhu, Jitai Liu, Hu Dong
<span title="">2021</span> <i title="MDPI AG"> <a target="_blank" rel="noopener" href="https://fatcat.wiki/container/nzoj5rayr5hutlurimhzyjlory" style="color: black;">Symmetry</a> </i> &nbsp;
with quantization algorithm under low SNR and different numbers of RF chains.  ...  The simulation results demonstrate that the spectral efficiency of the algorithm is obviously outstanding compared with that of the OMP-based joint codebook algorithm and the hybrid precoding algorithm  ...  In addition, when using a qbit resolution phase shifter, the phase shifter can achieve 2 q phase angles, so F RF can be obtained by F RF = 1, ω, ω 2 , · · · , ω 2 q −1 , ω = e j2π/2 q .  ... 
<span class="external-identifiers"> <a target="_blank" rel="external noopener noreferrer" href="https://doi.org/10.3390/sym13050743">doi:10.3390/sym13050743</a> <a target="_blank" rel="external noopener" href="https://doaj.org/article/54549bb3cb874d00a4b1743576961de6">doaj:54549bb3cb874d00a4b1743576961de6</a> <a target="_blank" rel="external noopener" href="https://fatcat.wiki/release/ef6f76b6fjdmtbdrtqxm3zpq7e">fatcat:ef6f76b6fjdmtbdrtqxm3zpq7e</a> </span>
<a target="_blank" rel="noopener" href="https://web.archive.org/web/20210717081817/https://res.mdpi.com/d_attachment/symmetry/symmetry-13-00743/article_deploy/symmetry-13-00743.pdf" title="fulltext PDF download" data-goatcounter-click="serp-fulltext" data-goatcounter-title="serp-fulltext"> <button class="ui simple right pointing dropdown compact black labeled icon button serp-button"> <i class="icon ia-icon"></i> Web Archive [PDF] <div class="menu fulltext-thumbnail"> <img src="https://blobs.fatcat.wiki/thumbnail/pdf/a6/44/a644840d0256fac082e492ac5c3115d507d4dc41.180px.jpg" alt="fulltext thumbnail" loading="lazy"> </div> </button> </a> <a target="_blank" rel="external noopener noreferrer" href="https://doi.org/10.3390/sym13050743"> <button class="ui left aligned compact blue labeled icon button serp-button"> <i class="unlock alternate icon" style="background-color: #fb971f;"></i> mdpi.com </button> </a>

Wideband hybrid precoder for mmWave multiuser MIMO OFDM communications

Faez Fawwaz Shareef, Manal Jamil Al-Kindi
<span title="2022-06-01">2022</span> <i title="Institute of Advanced Engineering and Science"> <a target="_blank" rel="noopener" href="https://fatcat.wiki/container/mwj5yys4mnek7al64kpw5psjqi" style="color: black;">Bulletin of Electrical Engineering and Informatics</a> </i> &nbsp;
A modified "joint spatial division/multiplexing" (JSDM) scheme is used to design the precoder, where each user equipped with more than one antenna.  ...  The design of the analog precoder is based on the second order channel statistics to reduce the overhead information need to process and fed back and the subcarrier baseband precoder based on the instantaneous  ...  The joint spatial division and multiplexing (JSDM) scheme is modified to design a precoder serves users with multiple antennas.  ... 
<span class="external-identifiers"> <a target="_blank" rel="external noopener noreferrer" href="https://doi.org/10.11591/eei.v11i3.3551">doi:10.11591/eei.v11i3.3551</a> <a target="_blank" rel="external noopener" href="https://fatcat.wiki/release/d7kvrnxkj5gnhdhxsm67j4awrq">fatcat:d7kvrnxkj5gnhdhxsm67j4awrq</a> </span>
<a target="_blank" rel="noopener" href="https://web.archive.org/web/20220605110240/https://beei.org/index.php/EEI/article/download/3551/2655" title="fulltext PDF download" data-goatcounter-click="serp-fulltext" data-goatcounter-title="serp-fulltext"> <button class="ui simple right pointing dropdown compact black labeled icon button serp-button"> <i class="icon ia-icon"></i> Web Archive [PDF] <div class="menu fulltext-thumbnail"> <img src="https://blobs.fatcat.wiki/thumbnail/pdf/ff/59/ff5992dc2ac9b44a232fb0f912bfafcfd0b493d5.180px.jpg" alt="fulltext thumbnail" loading="lazy"> </div> </button> </a> <a target="_blank" rel="external noopener noreferrer" href="https://doi.org/10.11591/eei.v11i3.3551"> <button class="ui left aligned compact blue labeled icon button serp-button"> <i class="unlock alternate icon" style="background-color: #fb971f;"></i> Publisher / doi.org </button> </a>
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