Massive MIMO in sparse channels. - Nikolaos Kolomvakis; Michail Matthaiou; Mikael Coldrey (SPAWC, 2014)

Massive MIMO with IQ Imbalance: Performance analysis and compensation. - Nikolaos Kolomvakis; Michail Matthaiou; Jingya Li; Mikael Coldrey; Tommy Svensson (ICC, 2015)

IQ Imbalance in Multiuser Systems: Channel Estimation and Compensation. - Nikolaos Kolomvakis; Michail Matthaiou; Mikael Coldrey (IEEE Trans. Commun., 2016)

Downlink performance of regularized ZF in massive MIMO systems subject to IQ imbalance. - Nikolaos Kolomvakis; Mikael Coldrey; Thomas Eriksson; Mats Viberg (ICC, 2017)

Massive MIMO Systems With IQ Imbalance: Channel Estimation and Sum Rate Limits. - Nikolaos Kolomvakis; Mikael Coldrey; Thomas Eriksson; Mats Viberg (IEEE Trans. Commun., 2017)

Quantized Uplink Massive MIMO Systems With Linear Receivers. - Nikolaos Kolomvakis; Thomas Eriksson; Mikael Coldrey; Mats Viberg (ICC, 2020)

Reconstruction of Clipped Signals in Quantized Uplink Massive MIMO Systems. - Nikolaos Kolomvakis; Thomas Eriksson; Mikael Coldrey; Mats Viberg (IEEE Trans. Commun., 2020)

MIMO-OFDM Downlink with Memoryful Hardware Non-Linearities. - Nikolaos Kolomvakis; George Jöngren; Ulf Gustavsson; Bo Göransson (GLOBECOM, 2022)

A Distortion Nullforming Precoder in Massive MIMO Systems With Nonlinear Hardware. - Nikolaos Kolomvakis; Majid Bavand; Israfil Bahceci; Ulf Gustavsson (IEEE Wirel. Commun. Lett., 2022)

Exploiting Mutual Coupling Characteristics for Channel Estimation in Holographic MIMO. - Nikolaos Kolomvakis; Emil Björnson (GLOBECOM, 2024)

Enabling 6G Performance in the Upper Mid-Band Through Gigantic MIMO. - Emil Björnson; Ferdi Kara; Nikolaos Kolomvakis; Alva Kosasih; Parisa Ramezani; Murat Babek Salman (CoRR, 2024)

Enabling 6G Performance in the Upper Mid-Band by Transitioning From Massive to Gigantic MIMO. - Emil Björnson; Ferdi Kara; Nikolaos Kolomvakis; Alva Kosasih; Parisa Ramezani; Murat Babek Salman (IEEE Open J. Commun. Soc., 2025)

Spatial Frequencies and Degrees of Freedom: Their roles in near-field communications. - Alva Kosasih; Özlem Tugfe Demir; Nikolaos Kolomvakis; Emil Björnson (IEEE Signal Process. Mag., 2025)

Nonlinear Distortion Radiated From Large Arrays and Active Reconfigurable Intelligent Surfaces. - Nikolaos Kolomvakis; Alva Kosasih; Emil Björnson (IEEE Trans. Wirel. Commun., 2025)