Joint Beamforming and Power Allocation in Downlink NOMA Multiuser MIMO Networks [PDF]
IEEE Transactions on Wireless Communications, 2018 In this paper, a novel joint design of beamforming and power allocation is proposed for a multi-cell multiuser multiple-input multiple-output non-orthogonal multiple access network. In this network, base stations adopt coordinated multipoint for downlink
Xiaofang Sun +6 more
semanticscholar +1 more source
Generalized Spatial Modulation in Large-Scale Multiuser MIMO Systems
, 2015 Generalized spatial modulation (GSM) uses $n_t$ transmit antenna elements but fewer transmit radio frequency (RF) chains, $n_{rf}$. Spatial modulation (SM) and spatial multiplexing are special cases of GSM with $n_{rf}=1$ and $n_{rf}=n_t$, respectively ...
Chockalingam, A. +2 more
core +1 more source
Joint Decision-Directed Channel and Noise-Variance Estimation for MIMO OFDM/SDMA Systems Based on Expectation-Conditional Maximization [PDF]
, 2011 A joint channel impulse response (CIR) and noise-variance estimation scheme is proposed for multiuser multiple-input–multiple-output (MIMO) orthogonal frequency-division multiplexing/space-division multiple access (OFDM/SDMA) systems, which is based on ...
Hanzo, Lajos +2 more
core +1 more source
A Generalized Sum-Rate Optimizer for Cooperative Multiuser Massive MIMO Link Topologies
IEEE Access, 2014 Large-scale, or massive, multiple-input multiple-output (MIMO) systems are typified by the number of antennas contributing to a communication link.
Adam L. Anderson, Michael A. Jensen
doaj +1 more source
Joint Transmit Beamforming for Multiuser MIMO Communication and MIMO Radar [PDF]
2019 IEEE International Conference on Signal, Information and Data Processing (ICSIDP), 2019 Nowadays spectrum sharing of radar and communication has becoming a challenging problem. In this paper, we proposed a joint beamforming model for MIMO radar and multiuser MIMO communication sharing spectrum and transmit array.
Xiang Liu +3 more
semanticscholar +1 more source
On differential modulation in downlink multiuser MIMO systems [PDF]
2017 25th European Signal Processing Conference (EUSIPCO), 2017 Publication in the conference proceedings of EUSIPCO, Kos island, Greece ...
Alsifiany, Fahad +2 more
openaire +2 more sources
, 2014 We investigate asymptotic capacity limits of the Gaussian MIMO broadcast channel (BC) with spatially correlated fading to understand when and how much transmit correlation helps the capacity.
Nam, Junyoung
core +1 more source
Hybrid Precoding Architecture for Massive Multiuser MIMO With Dissipation: Sub-Connected or Fully Connected Structures? [PDF]
IEEE Transactions on Wireless Communications, 2018 In this paper, we study the hybrid precoding structures over limited feedback channels for massive multiuser multiple-input multiple-output (MIMO) systems.
Jingbo Du +4 more
semanticscholar +1 more source
A Massive Grant‐Free Random Access Scheme Based on Spectrum Sensing and Preamble Delay
IET Communications, Volume 20, Issue 1, January/December 2026.This paper introduces cognitive radio (CR) and preamble delay (PD) to reduce access collisions, together with non‐orthogonal multiple access (NOMA) to improve spectrum efficiency, and thus proposes an efficient CR‐NOMA‐PD‐based massive grant‐free random multiple access scheme.
Jing Zhang +5 more
wiley +1 more source
Deep‐Learned Channel Estimation for MIMO‐OFDM System by Exploiting Frequency‐Space Correlation
Electronics Letters, Volume 62, Issue 1, January/December 2026.In massive MIMO–OFDM systems, accurate channel state information acquisition is vital for reliable transmission. Traditional methods fail to fully exploit sparse channel correlation, so an attentive residual autoencoder network is proposed. It uses an autoencoder with attention and residual connections to capture frequency–space correlation, and ...
Yiming Wei +5 more
wiley +1 more source