Matti Hämäläinen

Dr.Sc. (EE)

University Researcher, Adjunct Professor
Wireless Communications

190 peer reviewed publications in international journals. The publications have been cited 4384 times, of which the most cited publication accounts for 1194 citations. The author has a h-index of 27.00. (Google Scholar)


I received my M.Sc. degree in 1994 and Dr.Sc. in 2006 from University of Oulu. I have worked as a researcher and a project manager in several projects related to radio channel, ultra wideband system and medical ICT research. Currently my position is University Researcher. I am also Adjunct Professor (Docent). My Docentship relates to Wireless Body Area Networks.

I have more than 190 International Journal and Conference papers. My H-index is 27, i10-index 95 and publications are cited 4232 times according to Google Scholar (19.3.2021).

I was the General Chair of Bodynets 2018 conference held in Oulu on Oct. 2-3, 2018.

I am belonging to the Editorial Board of Annals of Telecommunications and being an Associate Editor of IEEE Access and Frontiers in Communcations and Networks - Non-Conventional Communications and Networks section. I am also Co-Chair of the International Steering Committee of the IEEE International Symposium on Medical Information and Communications Technology (ISMICT) and Steering Committee Member of EAI Body Area Networks (Bodynets) conference series.

My full publication list is available from here.

Research interests

  • Radio channel modelling
  • UWB systems
  • Wireless sensor and body area networks
  • Medical ICT

My Doctoral Thesis

Social media

Professional and community activities

  • IAS Visiting Professor of Yokohama National University, Japan, 2/2016 - 3/2018
  • International Advisory Board Member of Wireless Medical Research Centre at Macquarie University, Sydney, Australia
  • ETSI TC SmartBAN contributor
  • IEEE Senior Member (since 2009)

Research groups

  • Co-leader of the Wireless Medical Communications (WiMeC) research team, CWC-NS Networks and Systems
  • Senior Researcher, Academy of Finland's 6Genesis Flagship Programme (

Selected publications

  • Hämäläinen, Matti; Hovinen, Veikko; Tesi, Raffaello; Iinatti, Jari & Latva-aho, Matti (2002) On the UWB system coexistence with GSM900, UMTS/WCDMA, and GPS. - IEEE Journal on selected Areas in Communications 20 (9), 1712-1721
  • Hämäläinen, Matti; Saloranta, Jani; Mäkelä, Juha-Pekka; Oppermann, Ian & Patana, T. (2003) Ultra-wideband signal impact on the performances of IEEE 802.11b and bluetooth networks. - International Journal of Wireless Information Networks 10 (4), 201-210
  • Hämäläinen, Matti; Iinatti, Jari; Oppermann, Ian; Latva-aho, Matti, Saloranta, Jani & Isola, Ari (2006) Co-existence measurements between UMTS and UWB systems. - IEE Proceedings Communications 153 (1), 153-158
  • Hämäläinen, Matti; Taparugssanagorn, Attaphongse; Iinatti, Jari & Kohno, Ryuji (2009) Exploitation of wireless technology in remote care processes. - IEICE Transaction on Communications E92-B (2), 373-378 . [Original]
  • Taparugssanagorn Attaphongse, Pomalaza-Ráez Carlos, Isola Ari, Tesi Raffaello, Hämäläinen Matti, Iinatti Jari (2010) UWB channel modelling for wireless body area networks in a hospital. - International journal of ultra wideband communications and systems (IJUWBCS) 1 (4), 226 – 236
  • A. Taparugssanagorn, B. Zhen, R. Tesi, M. Hämäläinen, J. Iinatti, R. Kohno (2011) A UWB WBAN channel model based on a pseudo-dynamic measurement. - Annals of Telecommunications 66 (3-4), 177-185 . [Original]
  • Ville Niemelä, Matti Hämäläinen, Jari Iinatti (2011) IEEE 802.15.4a UWB receivers in medical applications. - International journal of ultra wideband communications and systems (IJUWBCS) 73-82 (2), 10
  • Karvonen, Heikki; Suhonen, Jukka; Petajajarvi, Juha; Hamalainen, Matti; Hannikainen, Marko; Pouttu, Ari (2014) Hierarchical Architecture for Multi-Technology Wireless Sensor Networks for Critical Infrastructure Protection. - Wireless personal communications 76 (2; SI), 209-229
  • Karvonen, Heikki; Pomalaza-Ráez, Carlos; Hämäläinen, Matti (2014) A cross-layer optimization approach for lower layers of the protocol stack in sensor networks. - ACM Transactions on Sensor Networks 11 (1), 16
  • Petäjäjärvi, Juha; Karvonen, Heikki; Mikhaylov, Konstantin; Pärssinen, Aarno; Hämäläinen, Matti; Iinatti, Jari (2015) WBAN Energy Efficiency and Dependability Improvement Utilizing Wake-up Receiver. - IEICE Transactions on Communications E98B (4), 535-542 . [Original]
  • Niemelä, Ville; Kumpuniemi, Timo; Hämäläinen, Matti; Iinatti, Jari (2015) Impulse radio UWB receiver analysis of non-coherently detected orthogonal signal. - IET Communications 51 (24), 2061-2062 . [Original]
  • Kumpuniemi, Timo; Hämäläinen, Matti; Yekeh Yazdandoost, Kamya; Iinatti, Jari (2016) Categorized UWB On-Body Radio Channel Modeling for WBANs. - Progress in Electromagnetic Research B 67, 1-16 . [Original]
  • Niemelä, Ville; Haapola, Jussi; Hämäläinen, Matti; Iinatti, Jari (2017) An Ultra Wideband Survey: Global Regulations and Impulse Radio Research Based on Standards. - Communications Surveys & Tutorials, IEEE 19 (2), 874-890 . [Original] [Self-archived]
  • Petäjäjärvi, Juha; Mikhaylov, Konstantin; Yasmin, Rumana; Hämäläinen, Matti; Iinatti, Jari (2017) Evaluation of LoRa LPWAN Technology for Indoor Remote Health and Wellbeing Monitoring. - International Journal of Wireless Information Networks 24 (2), 153-165 . [Original] [Self-archived]
  • Mikhaylov, Konstantin; Petäjäjärvi, Juha; Hämäläinen, Matti; Tikanmäki, Antti; Kohno, Ryuji (2017) Impact of IEEE 802.15.4 communication settings on performance in asynchronous two way UWB ranging. - International Journal of Wireless Information Networks 24 (2), 124–139 . [Original]
  • Kumpuniemi, Timo; Hämäläinen, Matti; Yazdandoost, Kamya Yekeh; Iinatti, Jari (2017) Human body shadowing effect on dynamic UWB on-body radio channels. - IEEE Antennas and Wireless Propagation Letters 16, 1871-1874 .
  • Viittala, Harri; Mucchi, Lorenzo; Hämäläinen, Matti; Paso, Tuomas (2017) ETSI SmartBAN system performance and coexistence verification for healthcare. - IEEE Access 5, 8175-8182 . [Original] [Self-archived]
  • Soderi, Simone; Mucchi, Lorenzo; Hämäläinen, Matti; Piva, Alessandro; Iinatti, Jari (2017) Physical layer security based on spread-spectrum watermarking and jamming receiver. - Transactions on Emerging Telecommunications Technologies 14 (1), 50-55 . [Original] [Self-archived]
  • Särestöniemi, Mariella; Hämäläinen, Matti; Iinatti, Jari (2017) An Overview of the Electromagnetic Simulation-Based Channel Modeling Techniques for Wireless Body Area Network Applications. - IEEE Access 5, 10622-10632 .
  • Hämäläinen, Matti; Mucchi, Lorenzo; Girod-Genet, Marc; Paso, Tuomas; Farserotu, John; Tanaka, Hirokazu; Anzai, Daisuke; Pierucci,Laura; Khan, Rida;Alam, Muhammad Mahtab; Dallemagne, Philippe (2020) ETSI SmartBAN Architecture: The Global Vision for Smart Body Area Networks. - IEEE access early, early . [Original] [Self-archived]
  • Hakala, J.; Kilpijärvi, J. ; Särestöniemi, M.; Hämäläinen, M.; Myllymäki, S.; Myllyläki,T. (2020) Microwave Sensing of Brain Water – a Simulation and Experimental Study Using Human Brain Models. - IEEE access 8, 111303 - 111315 . [Original] [Self-archived]
  • Särestöniemi, Mariella; Pomalaza-Ráez, Carlos; Kissi, Chaïmaâ; Berg, Markus; Hämäläinen, Matti; Iinatti, Jari (2020) WBAN channel characteristics between capsule endoscope and receiving directive UWB on-body antennas. - IEEE access 8, 55953-55968 . [Original] [Self-archived]
  • Särestöniemi, Mariella; Pomalaza-Ráez, Carlos; Bi, Zhuming; Kumpuniemi, Timo; Kissi, Chaïmaá; Sonkki, Marko; Hämäläinen, Matti; Iinatti, Jari (2019) Comprehensive Study on the Impact of Sternotomy Wires on UWB WBAN Channel Characteristics on the Human Chest Area. - IEEE access 7, 74670-74682 . [Original] [Self-archived]
  • Hämäläinen, Matti; Iinatti, Jari (2019) Medical Healthcare Network Platform and Big Data Analysis Based on Integrated ICT and Data Science with Regulatory Science. - IEICE transactions on communications to be published, to be published
  • Turbic, Kenan; Särestöniemi, Mariella; Hämäläinen, Matti; Kumpuniemi, Timo; Correia, Luis M. (2020) A Preliminary Analysis of User’s Body Impact on Signal Polarization in WBANs. (Artikkeli tieteellisessä konferenssijulkaisussa). - 14th European Conference on Antennas and Propagation (EuCAP), March 15-20, 2020, Copenhagen, Denmark.. Ei sarjaa/No series. 1-4. [Original] [Self-archived]

Thesis supervisions

Co-supervisor of Doctoral Theses
  • Heikki Karvonen: Energy Efficiency Improvements for Wireless Sensor Networks by Using Cross-Layer Analysis. Acta Ouluensis C520, Oulu, Finland. 2015. (Co-supervised with prof. Jari Iinatti and prof. Carlos Pomalaza-Raez)

  • Simone Soderi: Evaluation of Industrial Wireless Communications Systems’ Security. Acta Ouluensis C572, Oulu, Finland, 2016. (Co-supervised with prof. Jari Iinatti)

  • Harri Viittala: Selected methods for WBAN communications – FM-UWB and SmartBAN PHY. Acta Ouluensis C633, Oulu, Finland, 2017. Public defence on Dec. 15, 2017. (Co-supervised with prof. Jari Iinatti)

  • Mariella Särestöniemi: UWB in-body propagation and radio channel characteristics for wireless body area network applications. Acta Ouluensis C746, Oulu, Finland, 2020. Public defence on Apr. 20, 2020. (Co-supervised with prof. Jari Iinatti)

Pre-examiner of Doctoral theses
  • Perzila Ara: Channel Modelling and Localization of Capsule Endoscope Inside the Small Intestine. Macquarie University, Sydney, Australia, 2016.

  • Huiyang Wang: Short-Term Spectrum Sharing with Economic Awareness in 5G Networks. University of Technology Sydney, Sydney, Australia, 2017.

  • Pierce Rixon: Quantifying Secondary Spectrum and Optimal Timescales in Mobile Wireless Communications. University of Technology Sydney, Sydney, Australia, 2019.

  • Sofia Perez-Simbor: Experimental Radio Channel Characterization for In-Body Communications in the Ultra-Wide Band Frequency Band. Universitat Politécnica de València, Spain, 2019.  

Opponent in Licentiate defense
  • Charalampos Orfanidis: Robustness in Low Power Wide Area Networks. University of Upsala, Upsala, Sweden, 2018.

Research visits

  • Yokohama National University, Yokohama, Japan
    10.11.2014 to 21.11.2014

  • Yokohama National University, Yokohama, Japan
    18.3.2015 to 2.4.2015

  • Yokohama National University, Yokohama, Japan
    7.2.2016 to 20.2.2016

  • Yokohama National University, Yokohama, Japan
    19.1.2017 to 2.2.2017

  • Yokohama National University, Yokohama, Japan
    22.1.2018 to 31.1.2018

  • Yokohama National University, Yokohama, Japan
    25.1.2020 to 8.2.2020

    Research visit to Yokohama National University, H2020 MCSA-RISE-2019 ROVER Project (#872752).