Compensation of linear and nonlinear distortions in envelope tracking amplifier. - Atso Hekkala; Adrian Kotelba; Mika Lasanen (PIMRC, 2008)

Compensation of time misalignment between input signals in envelope-tracking amplifiers. - Adrian Kotelba; Atso Hekkala; Mika Lasanen (PIMRC, 2008)

Adaptive Predistortion Architecture for Nonideal Radio Transmitter. - Mika Lasanen; Adrian Kotelba; Atso Hekkala; Pertti Järvensivu; Aarne Mämmelä (VTC Spring, 2008)

Performance of adaptive algorithms for compensation of radio over fiber links. - Atso Hekkala; Mika Lasanen (WTS, 2009)

Architectures for Joint Compensation of RoF and PA with Nonideal Feedback. - Atso Hekkala; Mika Lasanen; Luis C. Vieira; Nathan J. Gomes; Anthony Nkansah (VTC Spring, 2010)

Analysis of and compensation for non-ideal RoF links in DAS. - Atso Hekkala; Mika Lasanen; Ilkka Harjula; Luis C. Vieira; Nathan J. Gomes; Anthony Nkansah; Steffen Bittner; Fabian Diehm; Vincent Kotzsch (IEEE Wirel. Commun., 2010)

Spectrum sensing in cognitive femto base stations using welch periodogram. - Ilkka Harjula; Atso Hekkala (PIMRC, 2011)

Performance Evaluation of Spectrum Sensing Using Welch Periodogram for OFDM Signals. - Ilkka Harjula; Atso Hekkala; Marja Matinmikko; Miia Mustonen (VTC Spring, 2011)

Predistortion of Radio Over Fiber Links: Algorithms, Implementation, and Measurements. - Atso Hekkala; Mikko Hiivala; Mika Lasanen; Jari Perttu; Luis C. Vieira; Nathan J. Gomes; Anthony Nkansah (IEEE Trans. Circuits Syst. I Regul. Pap., 2012)

Novel Digital Compensation Approaches for Envelope Tracking Amplifiers. - Atso Hekkala; Adrian Kotelba; Mika Lasanen; Pertti Järvensivu; Aarne Mämmelä (Wirel. Pers. Commun., 2012)

Power consumption trade-off between power amplifier OBO, DPD, and clipping and filtering. - Sandrine Boumard; Mika Lasanen; Olli Apilo; Atso Hekkala; Cedric Cassan; Jean-Philippe Verdeil; Jérôme David; Ludovic Pichon (ITC, 2014)

Exponential companding and active constellation extension comparisons for PAPR reduction. - Atso Hekkala; Sandrine Boumard; Mika Lasanen (ITC, 2014)

Small cell based 5G test network (5GTN). - Matti Latva-aho; Ari Pouttu; Atso Hekkala; Ilkka Harjula; Jukka Mäkelä (ISWCS, 2015)

5GTN: A test network for 5G application development and testing. - Esa Piri; Pekka Ruuska; Teemu Kanstrén; Jukka Mäkelä; Jari Korva; Atso Hekkala; Ari Pouttu; Olli Liinamaa; Matti Latva-aho; Kari Vierimaa; Harri Valasma (EuCNC, 2016)