Channel state information (CSI) estimation is one of the most fundamental problems in
wireless communication systems. Various methods, so far, have been developed to conduct …

Hybrid analog/digital multiple-input multiple-output architectures were recently proposed as
an alternative for fully digital-precoding in millimeter wave wireless communication systems …

A novel low-complexity decision-feedback detection algorithm with constellation constraints
(DFCC) is proposed for multi-input-multi-output (MIMO) systems. An enhanced interference …

In this study, the authors propose a novel successive interference cancellation (SIC) strategy
for multiple-input multiple-output spatial multiplexing systems based on a structure with …

In multiple-input multiple-output (MIMO) systems, channel estimation is of crucial importance
to guarantee reliable recovery of ultra-high-speed MIMO signals. This paper proposes a …

Although intelligent reflecting surface (IRS) is regarded as a promising solution to enhance
the efficiency of wireless energy transfer (WET), the acquiring of channel state information is …

Terahertz (THz) communication has emerged as a promising technology that efficiently
alleviates the scarcity of the frequency resources, and is capable of providing Terabit-per …

In this paper, an adaptive channel estimation for MIMO OFDM is proposed. A set of pilot
tones first are placed in each OFDM block, then the channel frequency response of these …

Spectrally-efficient optical communications systems employ polarization division
multiplexing (PDM) as a practical solution, in order to double the capacity of a fiber link …

The directionality of millimeter-wave (mmWave) communications creates a significant
challenge in serving fast-moving mobile terminals on, eg, high-speed vehicles, trains, and …