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 …

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 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 …

Pilot contamination in the uplink (UL) can severely degrade the channel estimation quality at
the base station in a massive multi-input multi-output (MIMO) system. Thus, it is critical to …

Pilot contamination in the uplink (UL) can severely degrade the channel estimation quality at
the base station (BS) in a massive multi-input multi-output (MIMO) system. Thus, it is critical …

This paper considers the problem of pilot contamination (PC) in large-scale multi-cell
multiple-input multiple-output-aided orthogonal frequency division multiplexing systems. We …

Massive multiple-input multiple-output (MIMO) communication is a promising technology for
increasing spectral efficiency in wireless networks. Two of the main challenges massive …

Multi-cell interference is undoubtedly the major limiting factor in full-coverage broadband
wireless access networks. Mitigating its effect onto the downlink data transmission is one of …

This paper addresses the problem of channel estimation in time-division duplex (TDD)
multicell cellular systems, where the performance of such systems is usually bounded by a …

This study addresses the problem of interference mitigation in multi‐cell time division duplex
cellular networks with large‐scale antennas. Network performance in such systems is …