Massive MIMO technique is expected to greatly improve spectrum efficiency as well as
energy efficiency of a communication system. However, to obtain the benefits, the system …

Massive MIMO is a promising technology to improve both the spectrum efficiency and the
energy efficiency. The key problem that impacts the throughput of a massive MIMO system is …

For a massive multiple-input multiple-output system in the multi-cell scenarios, it generally
suffers from pilot contamination due to the fact that the adjacent cells may use the same pilot …

A novel data-assisted channel estimation scheme is proposed for uplink massive multiple-
input multiple-output (MIMO) systems to alleviate the performance bottleneck due to pilot …

This paper focuses on time shifted pilot (TSP) based time division duplex (TDD) massive
multiple-input multiple-output (MIMO) systems. Since the performance of TSP with finite …

This paper considers multi-cell multi-user multi-input multi-output (MIMO) systems with a
very large antenna array at base station. In massive MIMO systems, pilot contamination …

Time-shifted pilot scheme can efficiency combat pilot contamination. However, when the
number of base station (BS) antennas is finite, the pilot interference due to the downlink …

In this paper, we have addressed the problem of channel estimation in massive MIMO
systems, because the large scale benefits of massive MIMO relies on the accuracy of …

Massive Multiple Input Multiple Output (Massive MIMO) system can be a promising
technology for future fifth generation (5G) wireless communication systems due to its large …

An improved minimum mean square error (MMSE) channel method with low complexity is
proposed for the massive multiple input multiple output (MIMO) system. In the method, the …