Results 21 to 30 of about 1,265,987 (202)
Hybrid TH-VP Precoding for Multiuser MIMO [PDF]
IEEE Transactions on Vehicular Technology, 2017 Vector perturbation (VP) is a nonlinear precoding technique that achieves near-capacity performance in multiuser multiple-input multiple-output systems at the expense of large complexity due to the search for the optimum perturbation vector. In this paper, we present the hybrid Tomlinson–Harashima VP (TH-VP) algorithm, a novel zero-forcing precoding ...
Rui Chen, Marco Moretti, Xiaodong Wang
openaire +3 more sources
Learn to Rapidly and Robustly Optimize Hybrid Precoding
IEEE Transactions on Communications, 2023 Hybrid precoding plays a key role in realizing massive multiple-input multiple-output (MIMO) transmitters with controllable cost. MIMO precoders are required to frequently adapt based on the variations in the channel conditions. In hybrid MIMO, here precoding is comprised of digital and analog beamforming, such an adaptation involves lengthy ...
Ortal Lavi, Nir Shlezinger
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Joint and distributed linear precoding for centralised and decentralised multicell processing [PDF]
, 2010 Linear precoding techniques are designed for both joint and distributed Multi-Cell Processing (MCP), where both centralised and decentralised Channel State Information (CSI) exchange scenarios are considered.
Rong Zhang +3 more
core +2 more sources
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
IEEE Access, 2019 In this paper, we investigate the spectral efficiency (SE) and energy efficiency (EE) of hybrid precoding in the point-to-point mmWave massive multiple-input multiple-output (MIMO) system with low-resolution analog-to-digital converters (ADCs) and ...
Qingfeng Ding, Yuqian Deng, Xinpeng Gao
doaj +1 more source
Hybrid Precoding/Combining for mmWave MIMO Systems With Hybrid Array Architecture
IEEE Access, 2023 Utilizing hybrid precoding/combining for subarray (SA) architectures in millimeter-wave (mmWave) multi-input multi-output (MIMO) systems offers reduced hardware cost and power consumption when compared with that for full array (FA) architectures, although the spectral efficiency is lower.
Mohamed Alouzi +3 more
openaire +3 more sources
Low‐complexity unsupervised learning‐based hybrid precoding for massive MIMO systems
IET Communications, 2023 Hybrid precoding can significantly reduce the number of required radio frequency (RF) chains in massive MIMO systems. However, due to the large number of antennas and the high‐dimensional channel, the existing hybrid precoding algorithms usually require ...
Xiang Liu
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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
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
Adaptive Hybrid Precoding Strategy for Cell-Free Massive MIMO [PDF]
Journal of Microwaves, Optoelectronics and Electromagnetic Applications, 2023 This work presents an adaptive hybrid signal precoding strategy for Cell-Free (CF) Massive multiple-input multiple-output (MIMO) systems. The proposed solution exploits the advantages of both distributed and centralized signal processing schemes to ...
Dercio M. Mathe +7 more
doaj +1 more source