In massive multiple-input multiple-output (MIMO) systems with time shifted pilot (TSP)
schemes, the inter-group interference caused by the pilot contamination can be eliminated …

Next generation wireless promises high data rate using advanced MIMO techniques. Large-
Scale antenna system, or massive MIMO, has been proposed as a strong candidate for …

In this paper, superimposed pilots are introduced as an alternative to time-multiplexed pilot
and data symbols for mitigating pilot contamination in massive multiple-input multiple-output …

Massive multiple input multiple output (MIMO) systems are a promising technology for next
generation wireless communications due to their ability to increase capacity and enhance …

Massive multiple-input multiple-output (MIMO) is one of the most promising tech-nologies in
5G systems. The base station (BS) is equipped with a much larger number of antennas in …

This study investigates the pilot contamination (PC) effect as the main bottleneck of time
division duplex (TDD) massive multi-input multi-output (MIMO) systems. Based on sparsity …

This letter focuses on the problem of uplink channel estimation with the reduced fronthaul
overhead in cell-free massive multiple-input multiple-output (mMIMO) systems. First, we …

Pilot signal reuse in neighboring cells causes the pilot contamination, and performance will
be degraded significantly in a multicell, massive multiple-input, multiple-output (MIMO) …

Massive multiple-input multiple-output (MIMO) has been considered to be one of the most
significant technologies for next-generation communications, which is, however, challenged …

The minimum mean square error (MMSE) algorithm can achieve the near-optimal detection
performance in Massive MIMO system. However, it involves complicated matrix inversion. In …