Results 31 to 40 of about 141,071 (164)
Nanophotonics, Volume 15, Issue 8, 24 April 2026.This research leverages advanced monolithic silicon‐photonics integrated‐circuit manufacturing technology with strategic electrical‐to‐optical signal conversions, differential intensity‐modulation technique, and dual rail‐to‐rail photodetection architecture to realize an on‐chip photonic‐electronic sign‐sign dot‐product accelerator achieving 8.92‐Gb/s ...
Sumilak Chaudhury +5 more
wiley +1 more source
Effect of Unpredictable Interference on MU-MIMO Systems in HetNet
IEEE Access, 2018 In this paper, we investigate the outage probability of a multiuser multiple-input multipleoutput (MU-MIMO) system in the heterogeneous network (HetNet) in the presence of unpredictable interference (UI) from coexisting ad hoc systems.
Seokwon Lee +4 more
doaj +1 more source
Low Complexity Hybrid Precoding Designs for Multiuser mmWave/THz Ultra Massive MIMO Systems
Sensors, 2021 Millimeter-wave and terahertz technologies have been attracting attention from the wireless research community since they can offer large underutilized bandwidths which can enable the support of ultra-high-speed connections in future wireless ...
João Pedro Pavia +6 more
doaj +1 more source
5G new radio multiuser precoding in geostationary satellite networks
International Journal of Satellite Communications and Networking, Volume 44, Issue 1, Page 60-72, January/February 2026.This work evaluates the standardized 5G new radio codebooks for closed‐loop multiuser precoding in GEO multibeam scenarios and derives a list of recommended 3GPP standard modifications for a proper support to GEO mission needs. Summary The multiuser precoding procedures standardized by the 3rd Generation Partnership Project (3GPP) for new radio (NR ...
Xavier Artiga, Miguel Ángel Vázquez
wiley +1 more source
Receiver Multiuser Diversity Aided Multi-Stage MMSE Multiuser Detection for DS-CDMA and SDMA Systems Employing I-Q Modulation [PDF]
, 2010 The so-called receiver multiuser diversity aided multistage minimum mean-square error multiuser detector (RMD/MS-MMSE MUD), which was proposed previously by the author, is investigated in the context of the direct-sequence code-division multiple-access ...
Yang, Lie-Liang, Lie-Liang Yang
core +2 more sources
Distributed probabilistic-data-association-based soft reception employing base station cooperation in MIMO-aided multiuser multicell systems [PDF]
, 2011 Intercell cochannel interference (CCI) mitigation is investigated in the context of cellular systems relying on dense frequency reuse (FR). A distributed base-station (BS)-cooperation-aided soft reception scheme using the probabilistic data association ...
Yang, Shaoshi +7 more
core +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
Unified Downlink‐Uplink Waveform Optimization For MIMO‐OFDM Integrated Sensing and Communication
IET Communications, Volume 20, Issue 1, January/December 2026.This paper presents a unified waveform allocation framework for downlink and uplink MIMO‐OFDM integrated sensing and communication (ISAC) systems in 6G networks. We develop five optimization schemes, including optimal‐for‐communication, optimal‐for‐sensing, and MMSE‐based joint allocation, with closed‐form expressions for spectral efficiency, sensing ...
Gujjula Ramya +2 more
wiley +1 more source
Time-Division Multiuser MIMO with Statistical Feedback
EURASIP Journal on Advances in Signal Processing, 2008 This paper investigates a time-division multiuser multiple-input multiple-output (MIMO) antenna system in K-block flat fading where users are given individual outage rate probability constraints and only one user accesses the channel at any given time ...
Jia Chen, Kai-Kit Wong
doaj +1 more source
Performance Evaluation of Uplink Multiuser MIMO-OFDM System With Single RF Chain Receiver
IEEE Access, 2022 In response to the recent increase in wireless-traffic demand in various wireless communication networks, the number of spatial multiplexings, represented by multiple input multiple output (MIMO) systems, has been increasing.
Tomoki Murakami +3 more
doaj +1 more source