Results 81 to 90 of about 184,691 (254)
Branch-and-Bound Precoding for Multiuser MIMO Systems With 1-Bit Quantization [PDF]
IEEE Wireless Communications Letters, 2017 Multiple-antenna systems is a key technique for serving multiple users in future wireless systems. For low energy consumption and hardware complexity we first consider transmit symbols with constant magnitude and then 1-bit digital-to-analog converters ...
L. Landau, R. D. de Lamare
semanticscholar +1 more source
Multiuser MIMO-OFDM for Visible Light Communications
IEEE Photonics Journal, 2015 Visible light communication (VLC) is emerging as a promising technique to provide ubiquitous wireless connection. In this paper, a multiuser VLC system utilizing multiple-input multiple-output (MIMO) orthogonal frequency-division multiplexing (OFDM) is investigated.
Wang, Qi, Wang, Zhaocheng, Dai, Linglong
openaire +4 more sources
Innovative Channel Estimation Methods for Massive MIMO Using GAN Architectures
IET Communications, Volume 19, Issue 1, January/December 2025.This paper proposes a novel channel estimation framework for massive multiple‐input multiple‐output (MIMO) systems using conditional generative adversarial networks with a U‐Net‐based generator and sequential convolutional neural network discriminator.
Sakhshra Monga +5 more
wiley +1 more source
Design of Joint Spatial and Power Domain Multiplexing Scheme for Massive MIMO Systems
International Journal of Antennas and Propagation, 2015 Massive Multiple-Input Multiple-Output (MIMO) is one of the key techniques in 5th generation wireless systems (5G) due to its potential ability to improve spectral efficiency. Most of the existing works on massive MIMO only consider Time Division Duplex (
Zheng Jiang +4 more
doaj +1 more source
IET Networks, Volume 14, Issue 1, January/December 2025.In the context of Non‐Orthogonal Multiple Access (NOMA)‐based Multibeam Satellite Networks (MBSNs), most existing power‐allocation algorithms primarily focus on maximising network throughput without adequately considering user fairness. Our paper aims to bridge this gap by proposing a power‐allocation algorithm specifically designed to maximise user ...
Joel Biyoghe, Vipin Balyan
wiley +1 more source
Outdoor Massive MIMO Testbed With Directional Beams: Design, Implementation, and Validation
IEEE AccessMassive MIMO has emerged as a key technology for the deployment of 5G networks, significantly enhancing network capacities. By simultaneously scheduling multiple users on the same time and frequency resources, substantial improvements in network capacity
Spandan Bisoyi +4 more
doaj +1 more source
Advances in Multimedia, 2014 We present a framework for cross-layer optimized real time multiuser encoding of video using a single layer H.264/AVC and transmission over MIMO wireless channels.
Slavche Pejoski, Venceslav Kafedziski
doaj +1 more source
IEEE Photonics Journal, 2016 This paper analyzes the impact of generalized selection multiuser scheduling on the performance of the multiple-input–multiple-output (MIMO) free-space optical (FSO) communication system. We consider a general scenario that the point-to-multipoint
Min Qin, Li Chen, Weidong Wang
doaj +1 more source
A Hierarchical Rate Splitting Strategy for FDD Massive MIMO under Imperfect CSIT
, 2015 In a multiuser MIMO broadcast channel, the rate performance is affected by the multiuser interference when the Channel State Information at the Transmitter (CSIT) is imperfect.
Caire, Giuseppe +3 more
core +1 more source
Securing Communication Networks at the Physical Layer: A DRL and Phase Optimization Approach
IET Signal Processing, Volume 2025, Issue 1, 2025.Securing communication between multiple users efficiently while there are too many potential eavesdroppers has become an important issue with the rise of the Internet of Things (IoTs). This paper extends on earlier research, moving from a single‐user and single‐eavesdropper scenario to a complex multiuser and multieavesdropper context, and incorporates
Mian Muhammad Kamal +6 more
wiley +1 more source