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 …

In massive MIMO systems, the number of terminals simultaneously served by the base
station (BS) can be up to half of the coherence time in symbols when the cell sum …

The pilot contamination problem is one of the major obstacles that limit the performance of
time-division duplex (TDD) multi-cell massive multiple-input multiple-output (MIMO) systems …

Massive multiple-input multiple-output (MIMO) has been proposed as a key technology for
the future fifth generation (5G) cellular networks. In time division duplex (TDD) massive …

Massive MIMO has been acknowledged as a promising technology to counter the demand
for higher data capacity for wireless networks in 2020 and beyond. However, each Base …

With the rapidly increasing demand for high speed data transmission and a growing number
of terminals in one cell, massive multiple-input multiple-output (MIMO) has been shown …

A novel time division duplex massive MIMO approach based on performing a blind channel
estimation in the uplink using differentially encoded data and a precoding in the downlink …

In modern wireless communication systems, orthogonal pilot signals has been generally
employed in estimation of the channel state information. However, orthogonal pilot signals …

By providing substantial gains in terms of both spectral and energy-efficiency, Massive
MIMO is expected to be the promising enabler for the fifth generation (5G) communications …

In this paper, we propose a pilot assignment method to eliminate pilot contamination and
improve the system performance in massive Multiple-Input Multiple-Output (MIMO) Time …