10 citations · 13 across the 5 of their papers we have counts for
11 papers
Impact of Channel Aging on Reconfigurable Intelligent Surface Aided Massive MIMO Systems with Statistical CSI
Anastasios Papazafeiropoulos, Ioannis Krikidis, Pandelis Kourtessis
The incorporation of reconfigurable intelligent surface (RIS) into massive multiple-input-multiple-output (mMIMO) systems can unleash the potential of next-generation networks by i…
Coverage Probability of STAR-RIS assisted Massive MIMO systems with Correlation and Phase Errors
Anastasios Papazafeiropoulos, Zaid Abdullah, Pandelis Kourtessis +2
In this paper, we investigate a simultaneous transmitting and reflecting reconfigurable intelligent surface (STAR-RIS) assisting a massive multiple-input multiple-output (mMIMO) sy…
Coverage Probability of Double-IRS Assisted Communication Systems
Anastasios Papazafeiropoulos, Pandelis Kourtessis, Symeon Chatzinotas +1
In this paper, we focus on the coverage probability of a double-intelligent reflecting surface (IRS) assisted wireless network and study the impact of multiplicative beamforming ga…
Scalable Cell-Free Massive MIMO Systems: Impact of Hardware Impairments
Anastasios Papazafeiropoulos, Emil Björnson, Pandelis Kourtessis +2
Standard cell-free (CF) multiple-input-multiple-output (mMIMO) systems is a promising technology to cover the demands for higher data rates in fifth-generation (5G) networks and be…
Asymptotic Analysis of Max-Min Weighted SINR for IRS-Assisted MISO Systems with Hardware Impairments
Anastasios Papazafeiropoulos, Cunhua Pan, Ahmet Elbir +3
We focus on the realistic maximization of the uplink minimum signal-to-interference-plus-noise ratio (SINR) of a general multiple-input single-output (MISO) system assisted by an i…
Intelligent Reflecting Surface-assisted MU-MISO Systems with Imperfect Hardware: Channel Estimation, Beamforming Design
Anastasios Papazafeiropoulos, Cunhua Pan, Pandelis Kourtessis +2
Most works in IRS-assisted systems have ignored the impact of the inevitable residual hardware impairments (HWIs) at both the transceiver hardware and the IRS while any relevant wo…