Results 21 to 30 of about 9,064,310 (225)
Robust MMSE Precoding Strategy for Multiuser MIMO Relay Systems with Switched Relaying and Side Information [PDF]
, 2013 In this work, we propose a minimum mean squared error (MMSE) robust base station (BS) precoding strategy based on switched relaying (SR) processing and limited transmission of side information for interference suppression in the downlink of multiuser ...
Yang, Lie-Liang +3 more
core +2 more sources
Intelligent Massive MIMO Systems for Beyond 5G Networks: An Overview and Future Trends
IEEE Access, 2022 Machine learning (ML) which is a subset of artificial intelligence is expected to unlock the potential of challenging large-scale problems in conventional massive multiple-input-multiple-output (CM-MIMO) systems.
Olakunle Elijah +5 more
doaj +1 more source
Multiuser MIMO-OFDM for Next-Generation Wireless Systems
, 2007 This overview portrays the 40-year evolution of orthogonal frequency division multiplexing (OFDM) research. The amelioration of powerful multicarrier OFDM arrangements with multiple-input multiple-output (MIMO) systems has numerous benefits, which are ...
Jiang, M +3 more
core +2 more sources
Joint interference alignment and power allocation for NOMA-based multi-user MIMO systems
EURASIP Journal on Wireless Communications and Networking, 2018 Interference alignment (IA) and non-orthogonal multiple access (NOMA) are key technologies for achieving the capacity scaling required by next generation networks to overcome the unprecedented growth of data network traffic.
Mohamed Rihan, Lei Huang, Peichang Zhang
doaj +1 more source
On the degree of MIMO systems [PDF]
2007 IEEE International Symposium on Circuits and Systems (ISCAS), 2007 MIMO channels and wireless communications systems have generated a great deal of renewed interest in linear system theory. This paper presents two results. The first is a simple proof based on first principles, of the known fact that the McMillan degree of a causal M times M MIMO system is at least as large as the degree of its determinant.
openaire +3 more sources
Adaptive matching for compact MIMO systems [PDF]
, 2010 Compact MIMO systems using closely spaced antennas are faced with the well-known problem of antenna mutual coupling (MC) that can degrade the performance.
Thompson, J.S. +3 more
core +1 more source
Iterative MIMO Detection for Rank-Deficient Systems [PDF]
, 2006 In this letter, a novel iterative multiple-input multiple-output (MIM)O detector reminiscent of sphere decoding (SD) is presented. Its main benefit is that in contrast to other softinput soft-output (SISO) SD algorithms presented in the literature, the ...
S. Chen +7 more
core +2 more sources
Analysis and Design of Channel Estimation in Multicell Multiuser MIMO OFDM Systems [PDF]
, 2014 This paper investigates the uplink transmission in multicell multiuser multiple-input multiple-output (MIMO) orthogonal frequency-division multiplexing (OFDM) systems. The system model considers imperfect channel estimation, pilot contamination (PC), and
Xu, Peng +3 more
core +1 more source
EURASIP Journal on Advances in Signal Processing, 2008 Antenna (subset) selection techniques are feasible to reduce the hardware complexity of multiple-input multiple-output (MIMO) systems, while keeping the benefits of higher-order MIMO systems.
T. Kaiser, A. Wilzeck
doaj +1 more source
Performance Analysis of MIMO Techniques for a Pyramid Receiver in an Indoor MIMO-VLC System
Sakarya Üniversitesi Fen Bilimleri Enstitüsü Dergisi, 2022 In an indoor multiple-input multiple-output (MIMO) visible light communication (VLC) system, line of sight (LoS) channel links are present between a light-emitting diode (LED) based transmitter and a photodetector (PD) based receiver.
Aamir Ullah Khan +2 more
doaj +1 more source