Fast matrix inversion methods based on Chebyshev and Newton iterations for zero forcing precoding in massive MIMO systems [PDF]
EURASIP Journal on Wireless Communications and Networking, 2020 In massive MIMO (mMIMO) systems, large matrix inversion is a challenging problem due to the huge volume of users and antennas. Neumann series (NS) and successive over relaxation (SOR) are two typical methods that solve such a problem in linear precoding.
Sherief Hashima, Osamu Muta
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Energy-Efficient Zero-Forcing Precoding Design for Small-Cell Networks [PDF]
IEEE Transactions on Communications, 2016 We consider small-cell networks with multiple-antenna transceivers and base stations (BSs) cooperating to jointly design linear precoders to maximize the network energy efficiency, subject to a sum power and per-antenna power constraints at individual BSs, as well as user-specific quality of service (QoS) requirements.
Quang-Doanh Vu +3 more
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Regularized Zero-Forcing Precoding Aided Adaptive Coding and Modulation for Large-Scale Antenna Array Based Air-to-Air Communications [PDF]
IEEE Journal on Selected Areas in Communications, 2018 We propose a regularized zero-forcing transmit precoding (RZF-TPC)-aided and distance-based adaptive coding and modulation (ACM) scheme to support aeronautical communication applications, by exploiting the high spectral efficiency of the large-scale ...
Jiankang Zhang +4 more
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Zero-Forcing MU-MIMO Precoding under Power Amplifier Non-Linearities [PDF]
5 pages, 1 figure (2 subfigures). This work has been presented at the Asilomar Conference on Signals, Systems, and Computers.
Juan Vidal Alegría +2 more
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Large System Analysis of Cognitive Radio Network via Partially-Projected Regularized Zero-Forcing Precoding [PDF]
IEEE Transactions on Wireless Communications, 2015 In this paper, we consider a cognitive radio (CR) network in which a secondary multiantenna base station (BS) attempts to communicate with multiple secondary users (SUs) using the radio frequency spectrum that is originally allocated to multiple primary ...
Jun Zhang +4 more
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Zero-Forcing Precoding in the Measured Massive MIMO Downlink: How Many Antennas Are Needed? [PDF]
International Journal of Antennas and Propagation, 2019 In order to understand how many antennas are needed in a multiuser massive MIMO system, theoretical derivation and channel measurements are conducted; the effect of a finite number of base station (BS) antennas on the performance capability of Zero ...
Zhe Zheng +4 more
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Enhancing resilience in cell-free massive MIMO networks via 2D-DOA-based zero-forcing precoding under pilot contamination [PDF]
EURASIP Journal on Wireless Communications and NetworkingCell-free massive MIMO networks offer significant advantages in spectral and energy efficiency due to their macro-diversity and distributed architecture.
Mohammed Balfaqih +5 more
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Satellite-Assisted Cell-Free Massive MIMO Systems with Multi-Group Multicast [PDF]
Sensors, 2021 In this paper, we use satellite-assisted and multi-group multicast mechanisms to relieve ground traffic pressure and improve data transmission efficiency of cell-free massive MIMO systems.
Jiamin Li +4 more
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IEEE AccessThis paper explores the potential of applying Zero Forcing (ZF) and Block Diagonalization (BD), two linear precoding techniques commonly utilized in communications, to a Multi-User Multiple Input Multiple Output (MU-MIMO) Integrated Sensing and ...
Carlos Ravelo +2 more
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Subset Regularized Zero-Forcing Precoders for Cell-Free C-RANs [PDF]
2021 29th European Signal Processing Conference (EUSIPCO), 2021 This paper formulates regularized zero-forcing (RZF) precoders that are both network- and user-centric for the downlink of centralized radio-access networks operating in a cell-free fashion. The transmission to every user involves a distinct subset of access points (APs), and every AP participates in the transmission to a distinct subset of users ...
Mojahedian, Mohammad M., Lozano, Angel
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