| Predistortion of radio over fiber links: algorithms, implementation, and measurements A Hekkala, M Hiivala, M Lasanen, J Perttu, LC Vieira, NJ Gomes, ... IEEE Transactions on Circuits and Systems I: Regular Papers 59 (3), 664-672, 2011 | 82 | 2011 |
| Adaptive time misalignment compensation in envelope tracking amplifiers A Hekkala, M Lasanen, A Kotelba 2008 IEEE 10th International Symposium on Spread Spectrum Techniques and …, 2008 | 77 | 2008 |
| Cooperative and noncooperative spectrum sensing techniques using Welch’s periodogram in cognitive radios H Sarvanko, M Mustonen, A Hekkala, A Mammela, M Matinmikko, M Katz 2008 First International Workshop on Cognitive Radio and Advanced Spectrum …, 2008 | 54 | 2008 |
| Spectrum awareness: techniques and challenges for active spectrum sensing M Höyhtyä, A Hekkala, MD Katz, A Mämmelä Cognitive Wireless Networks: Concepts, Methodologies and Visions Inspiring …, 2007 | 45 | 2007 |
| 5GTN: A test network for 5G application development and testing E Piri, P Ruuska, T Kanstren, J Mäkelä, J Korva, A Hekkala, A Pouttu, ... 2016 European Conference on Networks and Communications (EuCNC), 313-318, 2016 | 44 | 2016 |
| Analysis of and compensation for non-ideal RoF links in DAS [Coordinated and Distributed MIMO] A Hekkala, M Lasanen, I Harjula, LC Vieira, NJ Gomes, A Nkansah, ... Wireless Communications, IEEE 17 (3), 52-59, 2010 | 42 | 2010 |
| A motivating overview of cognitive radio: Foundations, regulatory issues and key concepts M Matinmikko, M Mustonen, H Sarvanko, M Hoyhtya, A Hekkala, ... 2008 First International Workshop on Cognitive Radio and Advanced Spectrum …, 2008 | 33 | 2008 |
| Cognitive radio: An intelligent wireless communication system M Matinmikko, M Höyhtyä, M Mustonen, H Sarvanko, A Hekkala, M Katz, ... VTT Technical Research Centre of Finland, Tech. Rep, 2008 | 32 | 2008 |
| Architectures for joint compensation of RoF and PA with nonideal feedback A Hekkala, M Lasanen, LC Vieira, NJ Gomes, A Nkansah 2010 IEEE 71st Vehicular Technology Conference, 1-5, 2010 | 29 | 2010 |
| Performance of adaptive algorithms for compensation of radio over fiber links A Hekkala, M Lasanen 2009 Wireless Telecommunications Symposium, 1-5, 2009 | 25 | 2009 |
| Spectrum sensing in cognitive femto base stations using welch periodogram I Harjula, A Hekkala 2011 IEEE 22nd International Symposium on Personal, Indoor and Mobile Radio …, 2011 | 16 | 2011 |
| Performance evaluation of spectrum sensing using welch periodogram for OFDM signals I Harjula, A Hekkala, M Matinmikko, M Mustonen 2011 IEEE 73rd Vehicular Technology Conference (VTC Spring), 1-5, 2011 | 15 | 2011 |
| Cooperative spectrum sensing study using welch periodogram A Hekkala, I Harjula, D Panaitopol, T Rautio, R Pacalet Proceedings of the 11th International Conference on Telecommunications, 67-74, 2011 | 14 | 2011 |
| Adaptive predistortion architecture for nonideal radio transmitter M Lasanen, A Kotelba, A Hekkala, P Jarvensivu, A Mammela VTC Spring 2008-IEEE Vehicular Technology Conference, 1256-1260, 2008 | 14 | 2008 |
| Power consumption trade-off between power amplifier OBO, DPD, and clipping and filtering S Boumard, M Lasanen, O Apilo, A Hekkala, C Cassan, JP Verdeil, ... 2014 26th International Teletraffic Congress (ITC), 1-5, 2014 | 13 | 2014 |
| Small cell based 5G test network (5GTN) M Latva-aho, A Pouttu, A Hekkala, I Harjula, J Mäkelä 2015 International Symposium on Wireless Communication Systems (ISWCS), 231-235, 2015 | 12 | 2015 |
| Compensation of linear and nonlinear distortions in envelope tracking amplifier A Hekkala, A Kotelba, M Lasanen 2008 IEEE 19th International Symposium on Personal, Indoor and Mobile Radio …, 2008 | 9 | 2008 |
| Novel digital compensation approaches for envelope tracking amplifiers A Hekkala, A Kotelba, M Lasanen, P Järvensivu, A Mämmelä Wireless Personal Communications 62, 55-77, 2012 | 8 | 2012 |
| Predistortion study of Radio over Fibre link A Hekkala, J Perttu, M Lasanen, LC Vieira, NJ Gomes 2010 Future Network & Mobile Summit, 1-8, 2010 | 7 | 2010 |
| Exponential companding and active constellation extension comparisons for PAPR reduction A Hekkala, S Boumard, M Lasanen 2014 26th International Teletraffic Congress (ITC), 1-5, 2014 | 6 | 2014 |
