Results 61 to 70 of about 48,136 (224)

Off-Grid Channel Estimation for Extremely Large Scale MIMO Based on Simplex Method [PDF]

Jisuanji gongcheng
This paper proposes an off-grid near-field channel estimation algorithm based on the simplex method to address the estimation error problem of sampling points on the grid caused by grid channel estimation using polar-domain sparsity in eXtremely Large ...
HE Tianyi, CAO Haiyan, JI Yangrui, XU Fangmin
doaj   +1 more source

Channel Estimation for Massive MIMO TDD Systems Assuming Pilot Contamination and Frequency Selective Fading

IEEE Access, 2017
Channel estimation is crucial for massive multiple-input multiple-output (MIMO) systems to scale up multi-user MIMO, providing significant improvement in spectral and energy efficiency.
Felipe A. P. De Figueiredo, Fabbryccio A. C. M. Cardoso, Ingrid Moerman, Gustavo Fraidenraich   +3 more
doaj   +1 more source

On Design of Protograph LDPC Codes for Large-Scale MIMO Systems

IEEE Access, 2020
Protograph low-density parity-check (LDPC) codes and large-scale multi-input multi-output (LS-MIMO) systems have achieved great interest with various practical applications.
Hieu D. Vu, Thuy V. Nguyen, Diep N. Nguyen, Hieu T. Nguyen   +3 more
doaj   +1 more source

Performance of Uplink Multiuser Massive MIMO Systems [PDF]

, 2013
We study the performance of uplink transmission in a large-scale (massive) MIMO system, where all the transmitters have single antennas and the receiver (base station) has a large number of antennas. Specifically, we analyze achievable degrees of freedom
Wang, Zhengdao, Wang, Zhengdao
core   +3 more sources

Joint Semi-Blind Channel Estimation and Finite Alphabet Signal Recovery Detection for Large-Scale MIMO Systems [PDF]

, 2021
Zahran Hajji, Abdeldjalil Aïssa El Bey, Karine Amis   +2 more
openalex   +1 more source

Gaussian Message Passing for Overloaded Massive MIMO-NOMA

, 2018
This paper considers a low-complexity Gaussian Message Passing (GMP) scheme for a coded massive Multiple-Input Multiple-Output (MIMO) systems with Non-Orthogonal Multiple Access (massive MIMO-NOMA), in which a base station with $N_s$ antennas serves $N_u$
Guan, Yong Liang, Huang, Chongwen, Li, Ying, Liu, Lei, Yuen, Chau   +4 more
core   +1 more source

Energy Efficiency Maximization in Large-Scale Cell-Free Massive MIMO: A Projected Gradient Approach [PDF]

, 2022
Trang C. Mai, Hien Quoc Ngo, Le‐Nam Tran   +2 more
openalex   +1 more source

Generalised Spatial Modulation For Large-Scale Mimo

, 2014
Publication in the conference proceedings of EUSIPCO, Lisbon, Portugal ...
Di Renzo, Marco, Haas, Harald, Mesleh, Raed, Younis, Abdelhamid   +3 more
openaire   +1 more source

Channel State Tracking for Large-Scale Distributed MIMO Communication Systems

IEEE Transactions on Signal Processing, 2015
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Brown, D. Richard III, Wang, Rui, Dasgupta, Soura   +2 more
openaire   +2 more sources

Massive MIMO for Next Generation Wireless Systems

, 2014
Multi-user Multiple-Input Multiple-Output (MIMO) offers big advantages over conventional point-to-point MIMO: it works with cheap single-antenna terminals, a rich scattering environment is not required, and resource allocation is simplified because every
Edfors, Ove, Larsson, Erik G., Marzetta, Thomas L., Tufvesson, Fredrik   +3 more
core   +1 more source