High speed frequency synthesizer based on PLL. - Konstantinos Efstathiou 002; George D. Papadopoulos; Grigorios A. Kalivas (ICECS, 1996)

Space-Diversity Issues in the Context of a B-ISDN-Oriented Indoor Radio Environment. - George M. Stamatelos; Grigorios A. Kalivas (IEEE J. Sel. Areas Commun., 1996)

A low complexity baseband receiver for direct conversion burst-type radio systems. - A. E. Tzimas; E. G. Metaxakis; Grigorios Kalivas (ISCC, 1998)

A low-complexity timing estimation and frequency offset correction algorithm for DECT-based digital receivers. - A. E. Tzimas; E. G. Metaxakis; Grigorios A. Kalivas (ICECS, 1999)

The VLSI implementation of a baseband receiver for DECT-based portable applications. - M. Perakis; A. E. Tzimas; E. G. Metaxakis; Dimitrios Soudris; Grigorios A. Kalivas; C. Katis; Chrissavgi Dre; Constantinos E. Goutis; Adonios Thanailakis; Thanos Stouraitis (ISCAS (1), 1999)

Low power design of a multi-mode transceiver. - Dimitrios Soudris; Minas Perakis; Haris Mizas; Vasilios A. Mardiris; Kosfas Katis; Chrissavgi Dre; A. E. Tzimas; E. G. Metaxakis; Grigorios Kalivas; Nikolaos D. Zervas; Spyros Theoharis; George Theodoridis; et al. (ISCAS, 2000)

Delay performance of radio physical layer technologies as candidates for wireless extensions to industrial networks. - Christos Koulamas; A. Lekkas; George D. Papadopoulos; Grigorios Kalivas; Stavros A. Koubias (ETFA (1), 2001)

Carrier frequency offset estimation and correction for Hiperlan/2 WLANs. - Andreas Miaoudakis; Apostolos Koukourgiannis; Grigorios Kalivas (ISCC, 2002)

An all-digital feed-forward CFO cancellation scheme for HIPERLAN/2 in multipath environment. - Andreas Miaoudakis; Apostolos Koukourgiannis; Grigorios Kalivas (PIMRC, 2002)

Locking techniques for RF oscillators at 5-6 GHz frequency range. - Fotis Plessas; Grigorios Kalivas (ICECS, 2003)

A 5 GHz low noise amplifier on 0.35 μm BiCMOS SiGe. - Fotis Plessas; Grigorios Kalivas (ICECS, 2003)

Radio channel characterization in industrial environments and spread spectrum modem performance. - Andreas Miaoudakis; A. Lekkas; Grigorios Kalivas; Stavros A. Koubias (ETFA, 2005)

SNR Estimation for Low Bit Rate OFDM Systems in AWGN Channel. - Athanasios Doukas; Grigorios Kalivas (ICN/ICONS/MCL, 2006)

Rician K Factor Estimation for Wireless Communication Systems. - Athanasios Doukas; Grigorios Kalivas (ICWMC, 2006)

A Subharmonic Injection-Locked Self-Oscillating Mixer. - Fotis Plessas; Andreas Papalambrou; Grigorios Kalivas (ISCAS, 2007)

Analysis and Performance Evaluation of a K-Symbol Pilot Assisted Channel Estimator using Linear Interpolation for OFDM Systems. - Athanasios Doukas; Grigorios A. Kalivas (WCNC, 2007)

Theoretical and Experimental Evaluation of the Phase Noise Behavior of a Dual-Loop Frequency synthesizer for 5-GHZ WLANS. - Fotis Plessas; Sofia Vatti; Grigorios Kalivas (J. Circuits Syst. Comput., 2007)

A Novel SNR per Subcarrier Estimation Scheme for OFDM Systems in Frequency Selective Channels. - Athanasios Doukas; Grigorios Kalivas (WiMob, 2008)

A 5-GHz Subharmonic Injection-Locked Oscillator and Self-Oscillating Mixer. - Fotis Plessas; Andreas Papalambrou; Grigorios Kalivas (IEEE Trans. Circuits Syst. II Express Briefs, 2008)

Subharmonic injection-locking and self-oscillating mixing. - Fotis Plessas; Andreas Papalambrou; Grigorios Kalivas (Int. J. Circuit Theory Appl., 2009)

Inductive coupling for imbalance improvement in a UWB balun employed in a folded cascode mixer. - Dimitrios Mavridis; Michail Papamichail; Grigorios Kalivas; George D. Papadopoulos (ICECS, 2010)

FPGA-based architecture of a DS-UWB Channel Estimator and RAKE Receiver employing a hybrid selection scheme. - Christos Thomos; Grigorios Kalivas (ICT, 2010)

Analysis and performance evaluation of a pilot-aided interpolated channel estimator for OFDM systems. - Athanasios Doukas; Grigorios Kalivas (Comput. Electr. Eng., 2010)

Next generation millimeter wave backhaul radio: Overall system design for GbE 60GHz PtP wireless radio of high CMOS integration. - Rodoula Makri; Petros Tsenes; Dimitrios Economou; Yannis Papananos; Dimitrios Dervenis; Michael K. Birbas; John C. Kikidis; Vassilis Paliouras; Grigorios Kalivas; Alexios N. Birbas; Panos Karaivazoglou; Yorgos Stratakos; et al. (ICECS, 2011)

Phase noise characterization of subharmonic injection locked oscillators. - Fotis Plessas; Athanasios Tsitouras; Grigorios Kalivas (Int. J. Circuit Theory Appl., 2011)

A linear, ultra wideband, low-power, 2.1-5 GHz, VCO. - Athanasios Tsitouras; Fotis Plessas; Grigorios Kalivas (Int. J. Circuit Theory Appl., 2011)

A 1 V CMOS programmable accurate charge pump with wide output voltage range. - Athanasios Tsitouras; Fotis Plessas; Michael K. Birbas; Grigorios Kalivas (Microelectron. J., 2011)

In-tunnel mobile communications deployment of an heterogeneous WLAN-WiMAX wireless network. - Michael Charitos; Christos Koulamas; Grigorios Kalivas (FGST, 2012)

A sub-1V supply CMOS voltage reference generator. - Athanasios Tsitouras; Fotis Plessas; Michael K. Birbas; John C. Kikidis; Grigorios Kalivas (Int. J. Circuit Theory Appl., 2012)

WiMAX-WLAN Vehicle-to-Infrastructure Network Architecture during Fast Handover Process. - Michael Charitos; Grigorios Kalivas (AINA Workshops, 2013)

Heterogeneous hybrid vehicular WiMAX-WiFi network for in-tunnel surveillance implementations. - Michael Charitos; Grigorios Kalivas (ICC, 2013)

FPGA-based architecture and implementation techniques of a low-complexity hybrid RAKE receiver for a DS-UWB communication system. - Christos Thomos; Grigorios Kalivas (Telecommun. Syst., 2013)

ITS Applications of a Hybrid WiMAX-WLAN Network for Highway Tunnel Scenarios. - Michael Charitos; Theofilos Chrysikos; Grigorios Kalivas; Stavros Kotsopoulos (VTC Fall, 2014)

Analysis of an Autonomous Vehicular WiMAX - WiFi Network for in-Tunnel Surveillance System Applications over Public Transportation. - Michael Charitos; Grigorios Kalivas (Mob. Networks Appl., 2014)

MIMO HetNet IEEE 802.11p-LTE deployment in a vehicular urban environment. - Michael Charitos; Grigorios Kalivas (Veh. Commun., 2017)

A 30 GHz Low Power & High Gain Low Noise Amplifier with Gm-Boosting in 28nm FD-SOI CMOS Technology. - Georgios Konidas; Panagiotis Gkoutis; Vasilis Kolios; Grigorios Kalivas (MOCAST, 2019)

30 GHz Front-End with Adaptively Biased PA and Current Steering LNA for Phased Array Systems. - Panagiotis Gkoutis; Georgios Konidas; Grigorios Kalivas (VLSI-SoC, 2022)

A 80 GHz VCO using Transformer Based Frequency Doubler. - Ioannis Dimitrios Psycharis; Grigorios Kalivas (MOCAST, 2023)

A 30 GHz Class-C Switchless Dual-Band Two Core VCO in 40-nm CMOS. - Ioannis Dimitrios Psycharis; Vasileios Tsourtis; Grigorios Kalivas (MOCAST, 2024)