Pilot Contamination Mitigation via a Novel Time‐Shift Pilot Scheme in Large‐Scale Multicell Multiuser MIMO Systems

Z Luo, H Wang, W Lv - International Journal of Antennas and …, 2016 - Wiley Online Library
We propose a novel time‐shift pilot scheme to mitigate the pilot contamination in large‐scale
multicell multiuser MIMO (LS‐MIMO) systems. In the proposed scheme, the length of the …

Pilot design for large-scale multi-cell multiuser MIMO systems

A Hu, T Lv, H Gao, Y Lu, E Liu - 2013 IEEE International …, 2013 - ieeexplore.ieee.org
Large-scale multi-cell multiuser multiple-input multiple-output (LS-MIMO) systems can
greatly increase the spectral efficiency. But the performance of these systems is deteriorated …

On superimposed pilot for channel estimation in multicell multiuser MIMO uplink: Large system analysis

H Zhang, S Gao, D Li, H Chen… - IEEE Transactions on …, 2015 - ieeexplore.ieee.org
This paper concerns the uplink of multicell multiuser multiple-input multiple-output (MIMO)
systems. To tackle the effect of pilot contamination that is generally viewed as a bottleneck in …

An approach to reduce pilot contamination in large-scale MIMO systems

F Liu, Q Meng, Y Zou, F Pang… - 2015 IEEE 16th …, 2015 - ieeexplore.ieee.org
A large-scale MIMO multi-cell system is considered where the desired cell bears pilot
contamination. Multiple neighbor cells and the desired cell use the same pilot position to …

Non-reused pilot design for large-scale multi-cell multiuser MIMO system

D Meng, L Guo, C Dong, Q Deng… - 2016 IEEE 27th Annual …, 2016 - ieeexplore.ieee.org
A non-reused pilot (NRP) design scheme is presented for Large-scale multi-cell multiuser
multiple-input multiple-output (LS-MIMO) systems. As the users at the cell edge suffer from …

Pilot precoding and combining in multiuser MIMO networks

NN Moghadam, H Shokri-Ghadikolaei… - IEEE Journal on …, 2017 - ieeexplore.ieee.org
Although the benefits of precoding and combining data signals are widely recognized, the
potential of these techniques for pilot transmission is not fully understood. This is particularly …

Constellation coordination and pilot reuse for multi‐cell large‐scale MIMO systems

F Xu, H Wang, H Wang, H Cao - IET Communications, 2020 - Wiley Online Library
To alleviate pilot contamination for multi‐cell large‐scale multiple‐input multiple‐output
(MIMO) systems, here the authors propose a constellation coordination scheme according to …

[PDF][PDF] Pilot Contamination Mitigation in Massive MultiInput Multi-Output (MIMO) System

A Dua'a, O Banimelhem, M Shurman… - International Journal …, 2020 - researchgate.net
Massive MIMO is one of the key components in the technologies of the next generation
wireless communication network; the fifth generation (5G). Although massive MIMO is …

Performance analysis on precoding and pilot scheduling in very large MIMO multi-cell systems

H Wang, Y Huang, S Jin, F Yu… - 2013 IEEE wireless …, 2013 - ieeexplore.ieee.org
We investigate pilot contamination problem for very large MIMO multi-cell TDD system. The
asymptotic sum rate of two typical precoding schemes, ie, the single-cell zero forcing (ZF) …

Pilot decontamination for multi-cell massive MIMO systems using asynchronous pilot design and data-aided channel estimation

HD Han, DA Nguyen, VD Nguyen, TH Nguyen… - Physical …, 2018 - Elsevier
In this work, we investigate the pilot contamination problem in multi-cell massive multi-input
multi-output (MIMO) systems. The conventional approaches to address pilot contamination …