Comparison of precoding methods for broadband MIMO systems [PDF]
, 2009 In this paper we investigate non-linear precoding solutions for the problem of broadband multiple-input multipleoutput (MIMO) systems. Based on a broadband singular value decomposition (BSVD) we can decouple a broadband MIMO channel into independent ...
Waleed Al-Hanafy +3 more
core +4 more sources
On the equivalence between SLNR and MMSE precoding schemes with single-antenna receivers [PDF]
, 2012 This letter considers transmit precoding schemes based on the maximum signal-to-leakage-and-noise ratio (SLNR) in multiuser MIMO systems with single-antenna receivers.
Doufexi, Angela +2 more
core +1 more source
Equivalent expressions and performance analysis of SLNR precoding schemes: a generalisation to multi-antenna receivers [PDF]
, 2013 In this letter, equivalent expressions of transmit precoding solutions based on the maximum signal-to-leakage-plus-noise ratio (SLNR) are derived for multiuser MIMO systems with multi-antenna receivers.
Armour, Simon M D +2 more
core +1 more source
DFT-based Beamforming Weight-Vector Codebook Design for Spatially Correlated Channels in the Unitary Precoding Aided Multiuser Downlink [PDF]
, 2010 —The DFT-based beamforming weight-vector code-book is considered as an effective design for spatially correlated channels. In this paper, we demonstrate that when the antenna elements are uniformly spaced as well as linearly arranged, and the channels ...
Yang, Lie-Liang +5 more
core +1 more source
Experimental Investigation of TDD Reciprocity-Based Zero-Forcing Transmit Precoding [PDF]
EURASIP Journal on Advances in Signal Processing, 2011 We describe an implementation of TDD reciprocity based zero-forcing linear precoding on a wireless testbed. A calibration technique which self-calibrates the base-station without the need for help from other nodes is described. Performance results in terms of downlink channel estimation error as well as bit error rate (BER) and signal to interference ...
Per Zetterberg
doaj +2 more sources
Expected propagation time for probabilistic zero forcing [PDF]
, 2022 Zero forcing is a coloring process on a graph that was introduced more than fifteen years ago in several different applications. The goal is to color all the vertices blue by repeated use of a (deterministic) color change rule. Probabilistic zero forcing
Hogben, Leslie, Geneson, Jesse
core
Rate-Maximizing Zero-Forcing Hybrid Precoder for MU-MISO-OFDM
IEEE Access, 2023 Hybrid precoders, consisting of an analog hardware-constrained part operating at radio frequency (RF) and a digital part operating at baseband, reduce the RF implementation complexity and power consumption of multi-antenna transceivers, at the expense of some rate loss compared to an all-digital precoder.
Sander Cornelis +2 more
openaire +3 more sources
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
Joint Tomlinson-Harashima precoding and optimum transmit power allocation for SC-FDMA [PDF]
, 2010 Single-Carrier Frequency Division Multiple Access (SC-FDMA) has been selected as the uplink transmission scheme in the 3GPP Long Term Evolution standard.
Nix, AR +3 more
core +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