Hybrid precoding based on matrix-adaptive method for multiuser large-scale antenna arrays. [PDF]
PLoS ONE, 2017 Massive multiple-input multiple-output (MIMO) is envisioned to offer a considerable improvement in capacity, but it has a high cost and the radio frequency (RF) chain components have a high power consumption at high frequency.
Yongpan Feng, Suk Chan Kim
doaj +1 more source
On the Degrees of Freedom of time correlated MISO broadcast channel with delayed CSIT [PDF]
, 2012 We consider the time correlated MISO broadcast channel where the transmitter has partial knowledge on the current channel state, in addition to delayed channel state information (CSI).
Gesbert, David +3 more
core +3 more sources
A Low Complexity Precoding Algorithm Based on Parallel Conjugate Gradient for Massive MIMO Systems
IEEE Access, 2018 Linear precoding algorithms with low complexity in massive multi-in multi-out system have always been a hot research topic to solve the problem of inter-cell interference. In this paper, we proposed a conjugate gradient-based regularized zero-forcing (CG-
Geng Chen +3 more
doaj +1 more source
Energy-Efficient Precoding Design for Multiuser MISO VLC Systems Based on Joint Detection
IEEE Access, 2019 In this paper, we study energy-efficient precoding techniques in multiuser multiple-input single-output (MISO) visible light communication (VLC) systems.
Zhen-Yu Wang, Hong-Yi Yu, Da-Ming Wang
doaj +1 more source
Improved Massive MIMO RZF Precoding Algorithm Based on Truncated Kapteyn Series Expansion
Information, 2019 In order to reduce the computational complexity of the inverse matrix in the regularized zero-forcing (RZF) precoding algorithm, this paper expands and approximates the inverse matrix based on the truncated Kapteyn series expansion and the corresponding ...
Xiaomei Xue +6 more
doaj +1 more source
A Low-Complexity Massive MIMO Precoding Algorithm Based on Chebyshev Iteration
IEEE Access, 2017 Precoding algorithm is used to transmit signals effectively and to reduce the interferences from other user terminals in the massive multiple-input-multiple-output (MIMO) systems. In order to decrease the computational complexity of the precoding matrix,
Chi Zhang +5 more
doaj +1 more source
Performance Analysis for Massive MIMO Downlink With Low Complexity Approximate Zero-Forcing Precoding [PDF]
IEEE Transactions on Communications, 2017 Zero-forcing (ZF) precoding plays an important role for massive MIMO downlink due to its near optimal performance. However, the high computation cost of the involved matrix inversion hinders its application.
Cheng Zhang +3 more
semanticscholar +1 more source
Symbol Based Precoding in The Downlink of Cognitive MISO Channels [PDF]
, 2015 This paper proposes symbol level precoding in the downlink of a MISO cognitive system. The new scheme tries to jointly utilize the data and channel information to design a precoding that minimizes the transmit power at a cognitive base station (CBS ...
A Goldsmith +6 more
core +2 more sources
Decentralization Issues in Cell-free Massive MIMO Networks with Zero-Forcing Precoding [PDF]
Allerton Conference on Communication, Control, and Computing, 2019 Cell-free massive MIMO (CF-M-MIMO) systems represent an evolution of the classical cellular architecture that has dominated the mobile landscape for decades.
F. Riera-Palou, G. Femenias
semanticscholar +1 more source
IEEE Communications Letters, 2020 This letter studies the multiple-input single-output (MISO) non-orthogonal multiple-access (NOMA) downlink using regularized zero-forcing (RZF) precoding with imperfect channel state information (CSI).
Jun Zhang +4 more
semanticscholar +1 more source