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Low Complexity Approximate Zero-Forcing Precoding for Massive MIMO Downlink
2018 IEEE International Conference on Communications (ICC), 2018Zero-forcing (ZF) precoding plays an important role for massive MIMO downlink due to its near optimal performance in high signal-to- noise (SNR) region. However, the high computation cost of the involved matrix inversion hinders its application in practical large- scale systems. In this paper, we adopt the first order Neumann series (NS) expansion for a
Cheng Zhang +3 more
semanticscholar +2 more sources
Distributed Cooperative Two-Cell Zero-Forcing Precoding With Local Channel Correlation
IEEE Transactions on Vehicular Technology, 2017This study focuses on local channel correlation based zero-forcing (ZF) precoding design for boosting weighted ergodic sum-rate (WESR) in the cooperative two-cell multiple-input single-output system. We first present that the WESRs of the statistical channel state information (SCSI) aided general eigenvector coordinated beamforming (SCSI-GE) and the ...
Jing Xu +3 more
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Scalable Cell-Free Massive MIMO Systems with High Energy Efficiency Zero-Forcing Precoding
2023 IEEE 18th Conference on Industrial Electronics and Applications (ICIEA), 2023This paper proposes a high energy efficiency zero-forcing (HEEZF) precoding scheme to improve the energy efficiency (EE) of cell-free massive multiple-input multiple-output systems. The HEEZF precoding scheme better balances downlink spectral efficiency (
Huayuan Wang +5 more
semanticscholar +1 more source
IEEE Microwave and Wireless Components Letters, 2021
In this letter, the impact of two variants of zero-forcing (ZF) precoding (conventional and minimax) on the performance of massive multiple-input–multiple-output (MIMO) transmitters is investigated through simulations and experiments.
Mohammed Almoneer +2 more
semanticscholar +1 more source
In this letter, the impact of two variants of zero-forcing (ZF) precoding (conventional and minimax) on the performance of massive multiple-input–multiple-output (MIMO) transmitters is investigated through simulations and experiments.
Mohammed Almoneer +2 more
semanticscholar +1 more source
Wireless and Optical Communications Conference, 2021
Fully digital precoding has superior performance for millimeter wave (mmWave) multiple input and multiple output (MIMO) system. In fully digital precoding, each antenna is connected to one RF chain which results in high hardware complexity and high cost.
Noura Arafat, A. El-Mahdy
semanticscholar +1 more source
Fully digital precoding has superior performance for millimeter wave (mmWave) multiple input and multiple output (MIMO) system. In fully digital precoding, each antenna is connected to one RF chain which results in high hardware complexity and high cost.
Noura Arafat, A. El-Mahdy
semanticscholar +1 more source
Zero-Forcing and MMSE Precoding for G.fast
2015 IEEE Global Communications Conference (GLOBECOM), 2014Hybrid copper/fiber networks bridge the gap between the fiber link at the distribution point and the customer by using copper wires over the last meters. The G.fast transmission technology has been designed to be used in such a fiber to the distribution point (FTTdp) network.
Rainer Strobel +2 more
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Coordinated Zero-Forcing precoder with Leakage Minimization
2019 International Multi-Conference on Engineering, Computer and Information Sciences (SIBIRCON), 2019This paper considers multiuser precoder design approach for distributive multiple-input multiple-output (D-MIMO) wireless network. Possibly large amount of radio-remote units (RRU) connected to one cell might be distributed over a wide area which leads to high computational requirements.
Nikolai Zamarashkin +3 more
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Optimal Generalized Inverses for Zero Forcing Precoding
2007 41st Annual Conference on Information Sciences and Systems, 2007We consider the problem of linear zero forcing precoding design, and discuss its relation to the theory of generalized inverses in linear algebra. Special attention is given to a specific generalized inverse known as the pseudo-inverse. We begin with the standard design under the assumption of a total power constraint and prove that precoders based on ...
Ami Wiesel +2 more
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Zero-forcing Precoder: A Special Constructive Interference Precoder for PSK Signals
2019 53rd Asilomar Conference on Signals, Systems, and Computers, 2019Recently, constructive interference precoders have been considered for downlink communication systems to utilize the multiuser interference constructively. Such precoders are normally obtained by solving constrained optimization problems at each symbol period. We demonstrate that there exists an analytic solution to a constructive interference precoder
Yanwu Ding, Khanh Pham
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Scheduling in Multihop Wireless Networks With Zero-Forcing Precoding
IEEE Transactions on Vehicular Technology, 2015Recently, multiple concurrent transmission techniques have been proposed for smartly exploiting interference to improve network throughput. This paper considers zero-forcing (ZF) precoding that allows two interfering links to concurrently transmit under certain situations.
Wong Lui, KS, Li, J, Hou, R
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