Erkki Harjula

D.Sc., M.Sc. (Tech)

Assistant professor (Tenure track)
Medical IoT - Edge - AI - ML - DLT

69 peer reviewed publications in international journals. The publications have been cited 1232 times, of which the most cited publication accounts for 276 citations. The author has a h-index of 18.00. (Google scholar)


Dr. Erkki Harjula is a full-time assistant professor (tenure track) in  the  Centre  for  Wireless Communications - Networks and Systems (CWC-NS) research group. He focuses on wireless system level architectures for future digital healthcare, where his key research topics are wrapped around intelligent trustworthy distributed IoT and edge computing. He completed D.Sc. degree in 2016, and M.Sc. degree in 2007. Previously he has worked as a postdoctoral researcher and project manager at CWC-NS (2016-2020), and a  research scientist / project manager for Center for Internet Excellence (CIE) (2013-2015), and for MediaTeam (2000-2014) research groups.  He visited Columbia University during winter 2008-2009. Dr. Harjula has background in the interface between computer science and wireless communications: mobile and IoT networks, distributed networks, cloud computing and green computing. He has also a long history of preparing, managing and coordinating research projects, since 2006.


Research projects

Past projects

Social media

Professional and community activities

  • Editor, Wireless Networks journal
  • Member, IEEE

Research groups

  • CWC-NS Networks and Systems

Selected publications

  • Harjula, Erkki; Karhula, Pekka; Islam, Johirul; Leppänen, Teemu; Manzoor, Ahsan; Liyanage, Madhusanka; Chaunan, Jagmohan; Kumar, Tanesh; Ahmad, Ijaz; Ylianttila, Mika (2019) Decentralized IoT Edge Nanoservice Architecture for Future Gadget-Free Computing. - IEEE access 7, 119856-119872 . [Original] [Self-archived]
  • Kumar, Tanesh; Harjula, Erkki; Ejaz, Muneeb; Manzoor, Ahsan; Porambage, Pawani; Ahmad, Ijaz; Liyanage, Madhusanka; Braeken, An; Ylianttila, Mika (2020) BlockEdge: Blockchain-Edge Framework for Industrial IoT Networks. - IEEE access 8, 154166-154185 . [Original]
  • Ahmad, Ijaz; Shahabuddin, Shahriar; Sauter, Thilo; Harjula, Erkki; Kumar, Tanesh; Meisel, Marcus; Juntti, Markku; Ylianttila, Mika (2021) The Challenges of Artificial Intelligence in Wireless Networks for the Internet of Things: Exploring Opportunities for Growth. - IEEE industrial electronics magazine 15 (1), 16-29 . [Original] [Self-archived]
  • Okwuibe;Jude; Haavisto, Juuso; Harjula,Erkki; Ahmad, Ijaz; Ylianttila, Mika (2020) SDN Enhanced Resource Orchestration of Containerized Edge Applications for Industrial IoT. - IEEE access 8, 229117 - 229131 . [Original] [Self-archived]
  • Ahmad, Ijaz; Shahabuddin, Shariar; Malik, Hassan; Harjula, Erkki; Leppänen, Teemu; Lovén, Lauri; Anttonen, Antti; Sodhro, Ali Hassan; Alam, Muhammad Mahtab; Juntti, Markku; Yla-Jaaski, Antti; Sauter, Thilo; Gurtov, Andrei; Ylianttila, Mika; Riekki, Jukka (2020) Machine Learning Meets Communication Networks: Current Trends and Future Challenges. - IEEE access 8, 223418 - 223460 . [Original] [Self-archived]
  • Ejaz, Muneeb; Kumar, Tanesh; Ylianttila, Mika; Harjula, Erkki (2020) Performance and Efficiency Optimization of Multi-layer IoT Edge Architecture. (Artikkeli tieteellisessä konferenssijulkaisussa). - 2020 2nd 6G Wireless Summit (6G SUMMIT). Ei sarjaa/No series. 1-5. [Original] [Self-archived]
  • Ahmad, Ahnaf; Harjula, Erkki; Ylianttila, Mika; Ahmad, Ijaz (2020) Evaluation of Machine Learning Techniques for Security in SDN. (Artikkeli tieteellisessä konferenssijulkaisussa). - Workshop on Secure and Dependable Software-defined Networking for Sustainable Smart Communities. IEEE Global Communications Conference, 1
  • Kumar, Tanesh; Ramani, Vidhya; Ahmad, Ijaz; Braeken, An; Harjula, Erkki; Ylianttila, Mika (2018) Blockchain Utilization in Healthcare: Key Requirements and Challenges. (Artikkeli tieteellisessä konferenssijulkaisussa). - 2018 IEEE 20th International Conference on e-Health Networking, Applications and Services (Healthcom), 17-20 September 2018, Ostrava, Czech Republic. Tanesh Kumar. Ei sarjaa/No series. Ostrava, Czech Republic. 1-7, 18233048. [Original] [Self-archived]
  • Lovén, Lauri; Leppänen, Teemu; Peltonen, Ella; Riekki, Jukka; Partala, Juha; Harjula, Erkki; Porambage, Pawani; Ylianttila, Mika (2019) EdgeAI: A Vision for Distributed, Edge-native Artificial Intelligence in Future 6G Networks. (Abstrakti (Ei KOTAan)). - 6G Wireless Summit, March 24-26, 2019 Levi, Finland. Ei sarjaa/No series, -. 1-2 [Self-archived]
  • Islam, Johirul; Harjula, Erkki; Kumar, Tanesh; Karhula, Pekka; Ylianttila, Mika (2019) Docker Enabled Virtualized Nanoservices for Local IoT Edge Networks. (Artikkeli tieteellisessä konferenssijulkaisussa). - IEEE Conference on Standards for Communications and Networking. 28-30 October 2019 Granada, Spain. IEEE Conference on Standards for Communications and Networking. 7, 8931321. [Original] [Self-archived]
  • Harjula, Erkki; Mekonnen, Tenager; Komu, Miika; Porambage, Pawani; Kauppinen, Tero; Kjällman, Jimmy; Ylianttila, Mika (2018) Energy Efficiency in Wireless Multimedia Sensor Networking: Architecture, Management and Security. Greening Video Distribution Networks. Popescu, Adrian. - Ei sarjaa/No series. Cham. 133-157. [Original]
  • Harjula, Erkki; Gurtov, Andrei; Koskela, Timo; Ojala, Timo; Ylianttila, Mika (2016) Energy-aware load monitoring for improving battery life of mobile peer-to-peer nodes. - Sustainable Computing: informatics and systems 12, 43-54 . [Original]

Thesis supervisions

Doctoral theses
  • Tenager Mekonnen, 2019

  • Tanesh Kumar, 2020

Master's theses
  • Muneeb Ejaz, 2020

  • Olli Himanka, 2020

  • Teemu Liuski, 2020

  • Johirul Islam, 2019

  • Jori-Pekka Rautava, 2019

  • Jihad Islam, 2019

  • Zaib Zubair, 2017

Bachelor's theses
  • Sebastian Niskala, 2017

Research visits

  • Columbia University, NY, USA
    1.11.2008 to 1.3.2009

    Host: Prof. Henning Schulzrinne.


University of Oulu, 2016

Wireless system level achitectures for future digital healthcare

University of Oulu has an impressive track record on wireless systems research, including significant results from communications, positioning, sig