Results 71 to 80 of about 613,083 (218)
1-bit Massive MU-MIMO Precoding in VLSI
, 2017 Massive multi-user (MU) multiple-input multiple-output (MIMO) will be a core technology in fifth-generation (5G) wireless systems as it offers significant improvements in spectral efficiency compared to existing multi-antenna technologies.
Goldstein, T. +23 more
core +1 more source
, 2022 Η παρούσα διπλωματική εργασία έχει ως αντικείμενο της τεχνολογίας του Massive MIMO σε δίκτυα 5ης γενιάς. Η τεχνολογία του Massive MIMO προσφέρει δυο βασικά πλεονεκτήματα για τα συστήματα 5ης γενιάς, τα οποία είναι η εξαιρετική φασματική απόδοση, καθώς ...
Oikonomou Dimitrios +1 more
core +1 more source
Nanophotonics, Volume 15, Issue 17, 11 September 2026.This work constructs a radio‐frequency front‐end‐free hybrid code‐division and space‐division‐multiplexing wireless communication system built on programmable space‐time‐coding metasurfaces. Orthogonal pseudo‐random codes reliably separate overlapped multistream signals that share identical frequency, time, and spatial resources.
Yuzhen Chen +3 more
wiley +1 more source
ON–OFF Analog Beamforming for Massive MIMO [PDF]
IEEE Transactions on Vehicular Technology, 2018 This paper investigates a new analog beamforming architecture for massive multiple-input multiple-output (MIMO) systems, where each of the multiple transmit antennas is switched to be on or off to form a beam according to the channel state information at transmitters.
Shengli Zhang 0001 +3 more
openaire +3 more sources
Entropy, 2021 In centralized massive multiple-input multiple-output (MIMO) systems, the channel hardening phenomenon can occur, in which the channel behaves as almost fully deterministic as the number of antennas increases.
Tongzhou Han, Danfeng Zhao
doaj +1 more source
Advanced Electronic Materials, Volume 12, Issue 17, 7 September 2026.Ising machines are emerging as specialized hardware solvers for computationally hard optimization problems. This review examines five major platforms—digital CMOS, analog CMOS, emerging devices, coherent optics, and quantum systems—highlighting physics‐rooted advantages and shared bottlenecks in scalability and connectivity.
Hyunjun Lee, Joon Pyo Kim, Sanghyeon Kim
wiley +1 more source
Massive MIMO With Dual-Polarized Antennas
IEEE Transactions on Wireless Communications, 2023 This paper considers a single-cell massive MIMO (multiple-input multiple-output) system with dual-polarized antennas at both the base station and users. We study a channel model that includes the key practical aspects that arise when utilizing dual-polarization: channel cross-polar discrimination (XPD) and cross-polar correlations (XPC) at the ...
Özgecan Özdogan, Emil Björnson
openaire +2 more sources
Low-power transmission method for uplink millimeter-wave massive MIMO-NOMA system based on GSIC
Dianxin kexue, 2023 The combination of non-orthogonal multiple access (NOMA) and millimeter-wave (mmWave) massive multiple-input multiple-output (MIMO) can meet the requirements for huge throughput and massive connectivity in future wireless communication network.The total ...
Hui WANG +4 more
doaj +2 more sources
A Generalized Spatial Modulation System Using Massive MIMO Space Time Coding Antenna Grouping
Entropy, 2020 Massive multiple input multiple output (MIMO), also known as a very large-scale MIMO, is an emerging technology in wireless communications that increases capacity compared to MIMO systems.
Amira I. Zaki +3 more
doaj +1 more source
Compact Quad‐Port Octagonal‐Shaped MIMO Antenna for n257/n260/n261‐Band Applications
Engineering Reports, Volume 8, Issue 9, September 2026.A compact quad‐port octagonal MIMO antenna is developed for 5G NR FR2 n257/n260/n261 applications, achieving dual‐band operation, high isolation, low ECC, and strong diversity performance. The design supports high‐speed, low‐latency mm‐wave communication for next‐generation IoT and wireless devices.
Akash Kumar Gupta +5 more
wiley +1 more source