Semi-blind channel estimation based on modified CMA and unitary scrambling for massive MIMO systems

N Sellami, M Siala - Telecommunication Systems, 2022 - Springer
Pilot contamination is one of the main impairments in multi-cell massive Multiple-Input
Multiple-Output systems. In order to improve the channel estimation in this context, we …

Channel estimation for massive MIMO in the presence of Cauchy noise

Z Gülgün, EG Larsson - ICC 2022-IEEE International …, 2022 - ieeexplore.ieee.org
In this paper, we work on channel estimation techniques for massive multiple-input multiple-
output (MIMO) with Cauchy noise. In the standard massive MIMO setup, the users transmit …

Channel zooming for the mitigation of pilot contamination in massive MIMO

M Boudaya, I Kammoun, M Siala - Transactions on Emerging …, 2018 - Wiley Online Library
Massive multiple‐input multiple‐output is an attractive technology that aims to ameliorate
both the energy and the spectrum efficiencies of fifth‐generation cellular networks. The main …

Pilot optimization and channel estimation for multiuser massive MIMO systems

TE Bogale, LB Le - … on Information Sciences and Systems (CISS …, 2014 - ieeexplore.ieee.org
This paper proposes novel pilot optimization and channel estimation algorithm for the
downlink multiuser massive multiple input multiple output (MIMO) system with K …

Semi-blind pilot decontamination for massive MIMO systems

D Hu, L He, X Wang - IEEE Transactions on Wireless …, 2015 - ieeexplore.ieee.org
In multicell multiuser massive multi-input multi-output (MIMO) systems, pilot contamination
degrades the uplink (UL) channel estimation performance. To mitigate the effect of pilot …

Blind downlink channel estimation of multi-user multi-cell massive MIMO system in presence of the pilot contamination

P Pasangi, M Atashbar, MM Feghhi - AEU-International Journal of …, 2020 - Elsevier
The pilot contamination is a challenge of channel estimation in multi-user multi-cell massive
Multiple Input Multiple Output (MIMO) system. In the Time Division Duplexing (TDD) …

Semi-blind channel estimation for multiuser massive MIMO systems

E Nayebi, BD Rao - IEEE Transactions on Signal Processing, 2017 - ieeexplore.ieee.org
Motivated by recent developments in time-division duplex massive multiple-input multiple-
output (MIMO) systems, this paper investigates semi-blind channel estimation for multiuser …

A new approach to linear estimation problem in multi-user massive MIMO Systems

MAR Anjum - arXiv preprint arXiv:1504.07426, 2015 - arxiv.org
A novel approach for solving linear estimation problem in multi-user massive MIMO systems
is proposed. In this approach, the difficulty of matrix inversion is attributed to the incomplete …

Channel estimation in massive MIMO systems

D Neumann, M Joham, W Utschick - arXiv preprint arXiv:1503.08691, 2015 - arxiv.org
We introduce novel blind and semi-blind channel estimation methods for cellular time-
division duplexing systems with a large number of antennas at each base station. The …

Novel pilot decontamination methods for Massive MIMO systems under practical scenarios

Q Cheng, G Fang, D Nguyen… - 2016 16th International …, 2016 - ieeexplore.ieee.org
Accurate and efficient channel estimation methods have the ability to realize the theoretical
gain in multi-input multi-output (Massive MIMO) systems which have a massive number of …