Erkki Harjula

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

Assistant professor (Tenure track)
IoT - Edge - AI - ML - Blockchain

65 peer reviewed publications in international journals. The publications have been cited 1044 times, of which the most cited publication accounts for 235 citations. The author has a h-index of 17.00. (Google scholar)


Dr. Erkki Harjula was recently appointed as 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

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]
  • 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]
  • 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]
  • 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]
  • 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]
  • Mekonnen, Tenager; Komu, Miika; Morabito, Roberto; Kauppinen, Tero; Harjula, Erkki; Koskela, Timo; Ylianttila, Mika (2018) Energy Consumption Analysis of Edge Orchestrated Virtualized Wireless Multimedia Sensor Networks. - IEEE Access 6, 5090-5100 .
  • 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]
  • Harjula, Erkki; Ojala, Timo; Ylianttila, Mika (2017) Energy-efficient peer-to-peer networking for constrained-capacity mobile environments. (Artikkeli tieteellisessä konferenssijulkaisussa). - 2017 IFIP/IEEE Symposium on Integrated Network and Service Management (IM). Ei sarjaa/No series. 858-864. [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