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Downlink Multiuser Hybrid Beamforming for MmWave Massive MIMO-NOMA System with Imperfect CSI

Jing Jiang, Ming Lei, Huanhuan Hou
2019 International Journal of Antennas and Propagation  
This paper aims to provide a comprehensive scheme with limited feedback for downlink millimeter wave (mmWave) multiuser multiple-input multiple-output (MIMO) nonorthogonal multiple access (NOMA) system  ...  Based on the feedback of the best beam and the channel quality information (CQI) on this beam, the users are grouped into a cluster having the same or coherent best beam and the maximal CQI-difference.  ...  We consider a multiuser downlink mmWave MIMO system with a BS employing a ULA of TX = 100 transmitting antennas and RF = 3 RF chains, i.e., 3 clusters in the MIMO-NOMA system.  ... 
doi:10.1155/2019/9764958 fatcat:oy4lksp5w5csfeg4u6go4urhea

Robust THP Transceiver Designs for Multiuser MIMO Downlink

P. Ubaidulla, A. Chockalingam
2009 2009 IEEE Wireless Communications and Networking Conference  
In this paper, we present two robust nonlinear transceiver designs for multiuser multi-input multi-output (MIMO) downlink in the presence of imperfections in the channel state information at the transmitter  ...  We illustrate the robustness of the proposed algorithms to imperfections in CSIT through simulations.  ...  SYSTEM MODEL We consider a multiuser MIMO downlink, where a base station (BS) communicates with M users on the downlink.  ... 
doi:10.1109/wcnc.2009.4917954 dblp:conf/wcnc/UbaidullaC09a fatcat:j3keqcqwujabhix5gb5ckemrim

Feedback-efficient agile scheduling-beamforming for network MIMO OFDMA systems with realistic channel models

Behrouz Khoshnevis, Wei Yu, Yves Lostanlen
2012 2012 IEEE 13th International Workshop on Signal Processing Advances in Wireless Communications (SPAWC)  
full channel state information with only modest amount of channel feedback.  ...  This paper proposes a two-stage channel quantization and feedback mechanism named agile scheduling-beamforming (ASB) for the downlink network MIMO system employing both spatial multiplexing and orthogonal  ...  The basestations share users' data and channel state information (CSI) in order to collectively make scheduling decisions and perform downlink beamforming.  ... 
doi:10.1109/spawc.2012.6292869 dblp:conf/spawc/KhoshnevisYL12 fatcat:hczy2tfscncwpd6i5fggyqatvq

Secure multiuser MISO communication systems with quantized feedback

Berna Ozbek, Ozgecan Ozdogan, Gunes Karabulut Kurt
2016 2016 IEEE 27th Annual International Symposium on Personal, Indoor, and Mobile Radio Communications (PIMRC)  
In this work, we propose a secure multiple input single output (MISO) multiuser system with a quantized feedback link.  ...  The proposed solution applies a semi-orthogonal selection with a specific codebook to reduce the quantization errors for legitimate user side while disrupting the reception of the eavesdropper.  ...  ACKNOWLEDGMENT This work has been carried out in the framework of TUBITAK 114E626 Project.  ... 
doi:10.1109/pimrc.2016.7794561 dblp:conf/pimrc/OzbekOK16 fatcat:jez4wnje2bdn5lijuiwnk543dy

Energy optimization across training and data for multiuser minimum sum-MSE linear precoding

Adam J. Tenenbaum, Raviraj S. Adve
2010 2010 44th Annual Conference on Information Sciences and Systems (CISS)  
This paper considers minimum sum mean-squared error (sum-MSE) linear transceiver designs in multiuser downlink systems with imperfect channel state information.  ...  Under MMSE estimation of uncorrelated Rayleigh block fading channels with equal average powers, we prove the separability of the energy allocation and transceiver design optimization problems.  ...  INTRODUCTION Transceiver designs that minimize the sum of mean squared errors (sum-MSE) under a sum power constraint in the multiuser downlink with full channel state information (CSI) at the base station  ... 
doi:10.1109/ciss.2010.5464944 dblp:conf/ciss/TenenbaumA10 fatcat:bwujoygl65dlvkqdazhwinv23i

Multiuser Diversity - Multiplexing Tradeoff in MIMO Broadcast Channels with Limited Feedback

Marios Kountouris, Ruben de Francisco, David Gesbert, Dirk T. M. Slock, Thomas Salzer
2006 2006 Fortieth Asilomar Conference on Signals, Systems and Computers  
We identify the tradeoff between multiuser diversity and spatial multiplexing gain given a limited amount of feedback bits.  ...  Perfect channel knowledge is assumed to be available at the receiver while the transmitter is provided with partial channel state information (CSIT) through a limited rate feedback channel.  ...  In a system with joint downlink scheduling and beamforming with limited feedback, beamforming is performed based on quantized channel directions.  ... 
doi:10.1109/acssc.2006.354769 fatcat:7ucyavrlajahvhyhp4n6knl2cy

Deep Learning for Distributed Channel Feedback and Multiuser Precoding in FDD Massive MIMO [article]

Foad Sohrabi, Kareem M. Attiah, Wei Yu
2021 arXiv   pre-print
A key observation is that the multiuser channel estimation and feedback problem can be thought of as a distributed source coding problem.  ...  This paper shows that deep neural network (DNN) can be used for efficient and distributed channel estimation, quantization, feedback, and downlink multiuser precoding for a frequency-division duplex massive  ...  This paper aims to show that it is possible to design an FDD system with excellent performance even with short training sequences and small amount of limited feedback information bits.  ... 
arXiv:2007.06512v2 fatcat:gtnq2adr4jeb5hg4prshc76ogq

Feedback Constraints for Adaptive Transmission

A.E. Ekpenyong, Yih-Fang Huang
2007 IEEE Signal Processing Magazine  
From 1999-2000, he was a systems engineer with Schlumberger Omnes, Nigeria, where he worked on voice and data networks.  ...  He is a Member of the IEEE.  ...  [ FIG8] A multiuser system showing multiaccess interference in the feedback channel. [FIG1] A generic adaptive transmitter with an ideal feedback channel.  ... 
doi:10.1109/msp.2007.361603 fatcat:wyije6w3wrcjhbqv35z376xdzq

Robust joint precoder/receive filter designs for multiuser MIMO downlink

P. Ubaidulla, A. Chockalingam
2009 2009 IEEE 10th Workshop on Signal Processing Advances in Wireless Communications  
channel state information at the transmitter (CSIT).  ...  In this paper, we consider robust joint linear precoder/receive filter designs for multiuser multi-input multi-output (MIMO) downlink that minimize the sum mean square error (SMSE) in the presence of imperfect  ...  SYSTEM MODEL We consider a multiuser MIMO downlink, where a base station (BS) communicates with M users on the downlink.  ... 
doi:10.1109/spawc.2009.5161762 fatcat:2gnzrx5sxvfulkqghcqxjeyygi

Cooperative Transmission Strategy over Users' Mobility for Downlink Distributed Antenna Systems

Ashim Khadka, Koichi Adachi, Sumei Sun, Junyuan Wang, Huiling Zhu, Jiangzhou Wang
2017 GLOBECOM 2017 - 2017 IEEE Global Communications Conference  
Previously, a scheme in [1] is proposed for the outdated channel state information (CSI) problem, for data transmission in time division duplex (TDD) systems.  ...  In this paper the effect of different user mobility on TDD downlink multiuser distributed antenna system is investigated.  ...  ACKNOWLEDGMENT This work has received funding from the European Union's Horizon 2020 Research and Innovation programme under grant agreement no. 643297 (RAPID) and Institute for Infocomm Research, A ⋆  ... 
doi:10.1109/glocom.2017.8254565 dblp:conf/globecom/KhadkaASWZW17 fatcat:g3n3s57g3bfqbnvdusds74wbre

Energy Optimization across Training and Data for Multiuser Minimum Sum-MSE Linear Precoding [article]

Adam J. Tenenbaum, Raviraj S. Adve
2010 arXiv   pre-print
This paper considers minimum sum mean-squared error (sum-MSE) linear transceiver designs in multiuser downlink systems with imperfect channel state information.  ...  Under MMSE estimation of uncorrelated Rayleigh block fading channels with equal average powers, we prove the separability of the energy allocation and transceiver design optimization problems.  ...  INTRODUCTION Transceiver designs that minimize the sum of mean squared errors (sum-MSE) under a sum power constraint in the multiuser downlink with full channel state information (CSI) at the base station  ... 
arXiv:1001.3118v1 fatcat:t4rukba3yzcjbjjjla757q25ne

Robust Transceiver Design for Multiuser MIMO Downlink

P. Ubaidulla, A. Chockalingam
2008 IEEE GLOBECOM 2008 - 2008 IEEE Global Telecommunications Conference  
channel state information (CSI).  ...  In this paper, we consider robust joint linear precoder/receive filter design for multiuser multi-input multi-output (MIMO) downlink that minimizes the sum mean square error (SMSE) in the presence of imperfect  ...  SYSTEM MODEL We consider a multiuser MIMO downlink, where a base station (BS) communicates with M users on the downlink.  ... 
doi:10.1109/glocom.2008.ecp.613 dblp:conf/globecom/UbaidullaC08 fatcat:patzyf3rdveqfgiy4kxchdklg4

Reduced feedback for capacity and fairness tradeoff in multiuser diversity

T. Kim, J.-T. Lim
2011 IET Communications  
There are a couple of drawbacks in multiuser diversity schedulers such as the linearly increasing feedback load with the number of MSs and the degrading fairness.  ...  The network capacity of wireless systems can be increased drastically by extracting multiuser diversity gain.  ...  System model We consider a single-cell downlink channel with K MSs.  ... 
doi:10.1049/iet-com.2010.0325 fatcat:vdt6fpoxdzcpreh266hv74jnou

Wireless information and power transfer in an underlay cognitive radio network

Louis Sibomana, Hans-Jurgen Zepernick, Hung Tran
2014 2014 8th International Conference on Signal Processing and Communication Systems (ICSPCS)  
We apply a channel quality-based threshold and exploit opportunistic scheduling.  ...  Specifically, an SU-Rx with best channel condition among a set of SU-Rxs satisfying the threshold is scheduled for data transmission.  ...  To reduce the feedback load while exploiting MUD gain in a SWIPT system, the SU-Rxs with channel condition above a predefined threshold are allowed to feed back their CSI to the SU-Tx.  ... 
doi:10.1109/icspcs.2014.7021107 fatcat:zgmwe32fsfhszpqvrlikdsi5p4

A realistic performance analysis for practical channel-aware scheduling

Pengcheng Zhan, Ramesh Annavajjala, A. Lee Swindlehurst, Todd Chauvin
2008 Proceedings of the IEEE International Conference on Acoustics, Speech and Signal Processing  
In this paper, we present a mathematical model for the average throughput of a practical wireless system with channel-aware user scheduling in a symmetric Rayleigh fading cellular system.  ...  expressions for the average spectral efficiency of the downlink scheduler.  ...  In this paper, we consider the downlink performance of a practical wireless system comprised of a single BS and multiple UTs that schedules transmission resources over a given interval to the one UT that  ... 
doi:10.1109/icassp.2008.4518322 dblp:conf/icassp/ZhanASC08 fatcat:erweyklwcvav3orvwz5lenughu
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