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User selection schemes for maximizing throughput of multiuser MIMO systems using Zero Forcing Beamforming

Anh H. Nguyen, Bhaskar D. Rao
2011 2011 IEEE International Conference on Acoustics, Speech and Signal Processing (ICASSP)  
We examine this problem in the context of systems using Zero Forcing Beamforming (ZFBF) which have low complexity and reasonable throughput.  ...  The performance of a multiuser MIMO broadcast system depends highly on how the users being served are selected from the pool of users requesting service.  ...  To reduce complexity, [5] , [7] proposed the use of Zero Forcing Beamforming (ZFBF).  ... 
doi:10.1109/icassp.2011.5947110 dblp:conf/icassp/NguyenR11 fatcat:rna25mbomngiza4pbrvtwelmke

User Selection for Multiple-Antenna Broadcast Channel with Zero-Forcing Beamforming

Saeed Kaviani, W. A. Krzymien
2008 IEEE GLOBECOM 2008 - 2008 IEEE Global Telecommunications Conference  
The solution for this limitation is user selection (scheduling), which also exploits multiuser diversity. Therefore, user selection can be used to enhance the throughput of the system.  ...  This paper investigates the zero-forcing (ZF) beamforming transmit strategy in the multiple-antenna multiuser downlink systems. We consider the case of mobile users equipped with multiple antennas.  ...  ACKNOWLEDGMENT Funding for this work has been provided by TRLabs, the Rohit Sharma Professorship and the Natural Sciences and Engineering Research Council (NSERC) of Canada.  ... 
doi:10.1109/glocom.2008.ecp.739 dblp:conf/globecom/KavianiK08 fatcat:p36th5ranrgdbfddw3najycr7a

On the optimality of multiantenna broadcast scheduling using zero-forcing beamforming

Taesa, A. Goldsmith
2006 IEEE Journal on Selected Areas in Communications  
capacity, multiuser diversity, proportional fair, zero-forcing beamforming (ZFBF).  ...  Specifically, we show that a zero-forcing beamforming (ZFBF) strategy, while generally suboptimal, can achieve the same asymptotic sum capacity as that of DPC, as the number of users goes to infinity.  ...  ACKNOWLEDGMENT The authors would like to thank the editor and anonymous reviewers for their thoughtful reviews and M. A. Maddah-Ali for valuable comments on the proof in Appendix III.  ... 
doi:10.1109/jsac.2005.862421 fatcat:d6lcyeguqza4jigntz2cidmliu

Downlink Spatial Scheduling with Mutual Interference Cancellation in Multiuser MIMO Systems

Yoshitaka Hara, Loic Brunel, Kazuyoshi Oshima
2006 2006 IEEE 17th International Symposium on Personal, Indoor and Mobile Radio Communications  
Under the base station's zero-forcing transmit beamforming, each terminal can receive packet of interest without interference from the other multiplexed packets.  ...  The scheduling algorithm successively selects appropriate terminals for packet transmission in the presence of already selected packets.  ...  CONCLUSIONS This paper has presented downlink spatial scheduling using zero-forcing transmit beamforming in multiuser MIMO systems.  ... 
doi:10.1109/pimrc.2006.254007 dblp:conf/pimrc/HaraBO06a fatcat:a6ofwqupojd37fpxbplvcr3vay

On the mobile wireless access via MIMO relays

Tae Hyun Kim, Nitin H. Vaidya, Young-Bae Ko
2009 2009 IEEE 20th International Symposium on Personal, Indoor and Mobile Radio Communications  
This happens due to quick channel variation and its resulting protocol overheads that are especially large for multiuser multiple-input multiple-output (MIMO) systems.  ...  Through a theoretical throughput analysis that explicitly considers the protocol overheads, we show that the MIMO relay significantly enhances the sum throughput of the system.  ...  We use this systems as a base-line because multiuser MIMO downlink with zero-forcing beamforming achieves higher throughput than single user MIMO capacity due to the minimum overheads and small number  ... 
doi:10.1109/pimrc.2009.5449979 dblp:conf/pimrc/0001VK09 fatcat:evywaxryujhipc3ajggnmq6eui

A Low Complexity User Grouping Strategy for Downlink Multi-User MIMO Scheduling

Nguyen Ngoc Van
2017 International Journal of Computer Networks & Communications  
In this paperwe present a low complexity user grouping algorithm for multi-user MIMO system employing opportunistic fair scheduling (OFS) and zero forcing beamforming (ZFB), and develop a framework for  ...  The multi-user resource scheduling problem then refers to the selection of the optimal subset of users for transmission at each time instant to maximize the total throughput of the system.  ...  Section II describes the downlink multiuser MIMO system including the user subset selection and beamforming scheme.  ... 
doi:10.5121/ijcnc.2017.9503 fatcat:dby3lamzsbgdnphm6v6ccvgyrq

Low-Complexity User Selection for Rate Maximization in MIMO Broadcast Channels with Downlink Beamforming

Eduardo Castañeda, Adão Silva, Ramiro Samano-Robles, Atílio Gameiro
2014 The Scientific World Journal  
We present in this work a low-complexity algorithm to solve the sum rate maximization problem in multiuser MIMO broadcast channels with downlink beamforming.  ...  Our user selection algorithm achieves a large portion of the optimum user selection sum rate (90%) for a moderate number of active users.  ...  The work presented in this paper was supported by the Projects CROWN (PTDC/EEA-TEL/115828/09), ADIN (PTDC/EEI-TEL/2990/2012), COPWIN (PTDC/EEI-TEL/ 1417/2012), and the FCT Grant (SFRH/BD/70130/2010) for  ... 
doi:10.1155/2014/865905 pmid:24574928 pmcid:PMC3915497 fatcat:mkfzrrj3irfd3nbgnqrlmdqk6q

An efficient user scheduling scheme for downlink Multiuser MIMO-OFDM systems with Block Diagonalization

Mounir Esslaoui, Mohamed Essaaidi
2013 International Journal of Advanced Computer Science and Applications  
When the number of users is large, a subset of users must be selected, and selection algorithms should be designed to maximize the total system throughput.  ...  In particular, Block Diagonalization (BD) scheme is a low-complexity precoding technique for MU-MIMO downlink channels, which completely pre-cancels the multiuser interference.  ...  ACKNOWLEDGEMENT The authors would like to thank the editor and the anonymous reviewers, whose careful consideration of the manuscript improved the presentation of the material.  ... 
doi:10.14569/ijacsa.2013.040514 fatcat:decz63ux4rdx3blm5rgtyzk2z4

Optimal Beam Subset and User Selection for Orthogonal Random Beamforming

Tae-sung Kang, Hyung-myung Kim
2008 IEEE Communications Letters  
The throughput performance of orthogonal random beamforming (ORBF) with a finite number of users is limited due to the increasing amount of residual interference.  ...  In this letter, we find the optimal beam subset, the optimal user set, and the optimal number of random beams to maximize the sum throughput of the ORBF.  ...  In Step 1-1, the user selection procedure is similar to that of the zero-forcing beamformer with user selection in [3] . C.  ... 
doi:10.1109/lcomm.2008.080648 fatcat:tmv7m22dmfampcxolrkk56o4gy

An Efficient Resource Allocation for Multiuser MIMO-OFDM Systems with Zero-Forcing Beamformer

Young-il Shin, Tae-Sung Kang, Hyung-Myung Kim
2007 2007 IEEE 18th International Symposium on Personal, Indoor and Mobile Radio Communications  
In this paper, a low complexity subcarrier allocation scheme is proposed for multiuser MIMO-multiuser OFDM systems with zero-forcing beamforming (ZFBF) to minimize the total transmit power satisfying given  ...  target data rates of users.  ...  In [3] , for a large number of users, it is showed that the zero-forcing beamformer(ZFBF) based on semi-orthogonal user selection achieves the asymptotic sum rate as DPC.  ... 
doi:10.1109/pimrc.2007.4394219 dblp:conf/pimrc/ShinKK07 fatcat:biorg2eozjderpqwc4oflimpbu

Throughput Maximization in Linear Multiuser MIMO–OFDM Downlink Systems

Gan Zheng, Kai-Kit Wong, Tung-Sang Ng
2008 IEEE Transactions on Vehicular Technology  
In this paper, we study the problem of maximizing the throughput of a multiuser multiple-input-multiple-output orthogonal frequency-division multiplexing (MIMO-OFDM) system in the downlink with a total  ...  Index Terms-Beamforming, multiple-input multiple-output (MIMO), multiuser communication, orthogonal frequency-division multiplexing (OFDM), throughput.  ...  CONCLUSION This paper has studied the throughput maximization problem of a multiuser MIMO-OFDM beamforming system in the downlink with a total power constraint when the channel state information of the  ... 
doi:10.1109/tvt.2007.909273 fatcat:3cvzs4dxozdljf6cnmek4gkqxq

Frequency Allocation Based on Angle-of-Arrival for Downlink User Selection in 5G MU-MIMO Heterogeneous Network

Ahmad Fadel, Bernard Cousin
2020 2020 IEEE 91st Vehicular Technology Conference (VTC2020-Spring)  
One of the most important issues in the efficient use of radio resource spectrum for multiuser multiple-input/multipleoutput (MU-MIMO) systems is the selection of users to achieve the maximum system throughput  ...  In this paper, we formulate an optimization problem for user selection based on angle-of-arrival (AoA), in a HetNET multi-user aiming to jointly maximize the total system throughput and the spectrum efficiency  ...  We have used digital beamforming techniques ZF zero-forcing for interference cancellation. A.  ... 
doi:10.1109/vtc2020-spring48590.2020.9128569 dblp:conf/vtc/FadelC20 fatcat:p3ylcfnqnfawbhzfr2exqemezm

Diversity-Multiplexing-Nulling Trade-Off Analysis of Multiuser MIMO System for Intercell Interference Coordination

Jinwoo Kim, Chung G. Kang
2017 Wireless Communications and Mobile Computing  
A fundamental performance trade-off of multicell multiuser multiple-input multiple-output (MU-MIMO) systems is explored for achieving intercell and intracell interference-free conditions.  ...  ., the slope of the error performance curve), multiplexing order (i.e., the number of users that are simultaneously served by MU-MIMO), and nulling order (i.e., the number of users with zero interference  ...  For example, zero-forcing transmit beamforming (ZFBF) is one of the practical multiuser transmission strategies for MU-MIMO systems [1] .  ... 
doi:10.1155/2017/5709367 fatcat:ggrz63p5ubadtc7ujtoe36c5ye

QoS-Guaranteed Multiuser Scheduling in MIMO Broadcast Channels

Seung Hwan Lee, John S. Thompson, Jin-Up Kim
2009 ETRI Journal  
The proposed QF scheduling algorithm finds a user set from a certain QoS group which can satisfy the fairness among users in terms of throughput or delay.  ...  This paper proposes a new multiuser scheduling algorithm that can simultaneously support a variety of different quality-of-service (QoS) user groups while satisfying fairness among users in the same QoS  ...  However, because DPC is difficult to implement in real systems due to its excessively high complexity, practical precoding techniques such as Tomlinson-Harashima precoding (THP) and zero-forcing beamforming  ... 
doi:10.4218/etrij.09.0109.0017 fatcat:t6m6vbs7rzetjfp5ixydvmqtx4

MIMO technologies for the wireless future

G. Bauch, A. Alexiou
2008 2008 IEEE 19th International Symposium on Personal, Indoor and Mobile Radio Communications  
Another source of diversity -inherent to wireless systems-is that of the multiuser diversity. Multiuser (MU) MIMO algorithms combine both MIMO gains with multiuser diversity benefits.  ...  ) precoding is used for open loop precoding.  ...  The transmitter requires estimates ofthe users' channels to form beams for each stream. For perferct CSI a zero-forcing type beamforming results in zero inter-user interference.  ... 
doi:10.1109/pimrc.2008.4699969 dblp:conf/pimrc/BauchA08 fatcat:24gb5o2ubbdblowfl7gqpbh2wa
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