Superimposed pilot optimization design and channel estimation for multiuser massive MIMO systems
For massive multiuser multiple input multiple output (MIMO)(MU-MIMO) systems, pilot
contamination (PC) and data interference (DI) are two main factors that affect the accuracy of …
contamination (PC) and data interference (DI) are two main factors that affect the accuracy of …
Pilot decontamination in massive multiuser MIMO systems based on low‐rank matrix approximation
In multi‐cell massive multiuser multi‐input multi‐output (MU‐MIMO) systems, the channel
estimation performance is degraded by the pilot contamination problem. This effect occurs …
estimation performance is degraded by the pilot contamination problem. This effect occurs …
Mitigating pilot contamination for channel estimation in multi-cell massive MIMO systems
Massive multiple-input multiple-output (MIMO) is a crucial technology platform for the fifth-
generation of cellular systems (5G). However, massive MIMO systems are affected by pilot …
generation of cellular systems (5G). However, massive MIMO systems are affected by pilot …
Channel estimation under staggered frame structure for massive MIMO system
In this paper, a staggered frame structure is proposed for single-cell massive multiple-input
multiple-output (MIMO) systems, and the key idea is that different users transmit training …
multiple-output (MIMO) systems, and the key idea is that different users transmit training …
Channel estimation for multicell multiuser massive MIMO uplink over Rician fading channels
Pilot contamination (PC) is a major problem in massive multiple-input multiple-output
(MIMO) systems. This paper proposes a novel channel estimation scheme for such a system …
(MIMO) systems. This paper proposes a novel channel estimation scheme for such a system …
Enhanced channel estimation in massive MIMO via coordinated pilot design
Pilot contamination is a limiting factor in multicell massive multiple-input multiple-output
(MIMO) systems because it can severely impair channel estimation. Prior works have …
(MIMO) systems because it can severely impair channel estimation. Prior works have …
Pilot power allocation through user grouping in multi-cell massive MIMO systems
In this paper, we propose a relative channel estimation error (RCEE) metric, and derive
closed-form expressions for its expectation Exprcee and the achievable uplink rate holding …
closed-form expressions for its expectation Exprcee and the achievable uplink rate holding …
A successive optimization approach to pilot design for multi-cell massive MIMO systems
H Al-Salihi, T Van Chien, TA Le… - IEEE Communications …, 2018 - ieeexplore.ieee.org
In this letter, we introduce a novel pilot design approach that minimizes the total mean
square errors of the minimum mean square error estimators of all base stations (BSs) …
square errors of the minimum mean square error estimators of all base stations (BSs) …
Joint pilot allocation and pilot sequence optimization in massive MIMO systems
X Nie, F Zhao - IEEE Access, 2020 - ieeexplore.ieee.org
Pilot contamination (PC) is recognized as a bottleneck for the achievable throughput of multi-
cell massive multiple-input multiple-output (MIMO) systems. In this paper, we propose a joint …
cell massive multiple-input multiple-output (MIMO) systems. In this paper, we propose a joint …
Two dimension angle of arrival-based precoding for pilot contamination reduction in multi-cell massive MIMO systems
This paper proposes a new precoding approach that utilizes two-dimension (2D) Angle of
Arrival (AOA) based precoding (beamforming) approach for multi-cell massive Multiple Input …
Arrival (AOA) based precoding (beamforming) approach for multi-cell massive Multiple Input …