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Francisco R. Castillo-Soria, J. Alberto Del Puerto-Flores, Cesar A. Azurdia-Meza, Vinoth Babu Kumaravelu, Jorge Simón and Carlos A. Gutierrez
This paper presents two precoding techniques for a reconfigurable intelligent surface (RIS)-assisted multi-user (MU) multiple-input multiple-output (MIMO) double quadrature spatial modulation (DQSM) downlink transmission system. Instead of being applied ...
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Laura Pierucci
Unmanned aerial vehicles (UAV) have attracted increasing attention in acting as a relay for effectively improving the coverage and data rate of wireless systems, and according to this vision, they will be integrated in the future sixth generation (6G) ce...
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Wenjie Ma, Liuchang Zhuo, Luchu Li, Yuhao Liu and Hong Ren
In this paper, we study a reconfigurable intelligent surface (RIS)-aided multiuser MISO system with imperfect hardware, where the transceiver design is based on the statistical channel state information (CSI). Considering the transceiver hardware impairm...
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Thaar A. Kareem,Maab Alaa Hussain,Mays Kareem Jabbar
Pág. pp. 176 - 192
This research puts forth an optimization- based analog beamforming scheme for millimeter-wave (mmWave) massive MIMO systems. Main aim is to optimize the combination of analog precoder / combiner matrices for the purpose of getting near-optimal performanc...
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Xiaomei Xue, Zhengquan Li, Yongqiang Man, Song Xing, Yang Liu, Baolong Li and Qiong Wu
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 ...
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Razvan-Florentin Trifan, Andrei-Alexandru Enescu and Constantin Paleologu
Multi-User (MU) Multiple-Input-Multiple-Output (MIMO) systems have been extensively investigated over the last few years from both theoretical and practical perspectives. The low complexity Linear Precoding (LP) schemes for MU-MIMO are already deployed i...
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Millimeter Wave (mmWave) Massive Multiple Input Multiple Output (MIMO) has been a promising candidate for the current and next generation of cellular networks. The hybrid analogue/digital precoding will be a crucial ingredient in the mmWave cellular syst...
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Jinho Kang, Jung Hoon Lee and Wan Choi
A two-stage precoder is widely considered in frequency division duplex massive multiple-input and multiple-output (MIMO) systems to resolve the channel feedback overhead problem. In massive MIMO systems, users on a network can be divided into several use...
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Yasmine Fahmy
Pág. 146 - 154
Joint Processing (JP) in Coordinated Multi-Point (CoMP) transmission allows user data to be jointly processed by several interfering base stations to achieve high performance and large capacity gain. This is achieved by making use of timin...
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Smrati Gupta and M. A. Vázquez-Castro
In this paper, we address the implementation of physical layer network coding (PNC) based on compute and forward (CF) in relay networks. It is known that the maximum achievable rates in CF-based transmission is limited due to the channel approximations a...
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