The pilot contamination is a serious problem which hinders the capacity increasing in the
massive MIMO system. Similar to Fractional Frequency Reuse (FFR) in the OFDMA system …

A system for transmitting pilot signals has first signal processing circuitry for generating a
pilot signal at a transmitting unit. An MLO modulation circuit modulates the pilot signal using …

Pilot contamination (PC) is a major impediment of large-scale multi-cell multiple-input
multiple-output systems. Hence, we propose an optimal pilot design for time-domain …

This paper investigates optimal resource allocation scheme for a typical uplink single-cell
massive MIMO system over spatially correlated fading channels. To reduce the pilot …

To be differentiated from the literature, in this paper, we aim to alleviate the impact of pilot
contamination (PC) on the massive MIMO systems by cooperatively scheduling users (rather …

This paper addresses the problem of pilot contamination in multi-cell multiuser Large-Scale
Multiple-Input Multiple-Output (LS-MIMO) aided orthogonal frequency division multiplexing …

In this paper, we investigate low-complexity user scheduling schemes for the downlink (DL)
massive multiuser multiple-input multiple-output (MU-MIMO) system, where an M-antenna …

We revisit the pilot contamination problem using the LTE pilot frame structure, and perform
channel estimation in the time domain using Zadoff-Chu pilot sequences. Sequences in …

This paper presents novel results for Massive MIMO time division duplex (TDD) system
where the beam-forming vector in the down-link makes use of MMSE channel estimates with …

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 …