Tan, X., & Hakala, I. (2023). StateOS : A Memory-Efficient Hybrid Operating System for IoT Devices. IEEE Internet of Things Journal, 10(11), 9523-9533. https://doi.org/10.1109/jiot.2023.3234106

Luomala, J., & Hakala, I. (2022). Adaptive range-based localization algorithm based on trilateration and reference node selection for outdoor wireless sensor networks. Computer Networks, 210, Article 108865. https://doi.org/10.1016/j.comnet.2022.108865

Flores-Martin, D., Mäkitalo, N., Berrocal, J., García-Alonso, J., Mikkonen, T., Murillo, J. (2021). Layered interoperability for collaborative iot applications. Advances in Information and Communication: Proceedings of the 2021 Future of Information and Communication Conference (FICC), Volume 1. (pp. 192-211). Springer.

Hakala, I., & Tan, X. (2020). A Statecharts-Based Approach for WSN Application Development. Journal of Sensor and Actuator Networks, 9(4), Article 45. https://doi.org/10.3390/jsan9040045

Jansson, J., & Hakala, I. (2020). Managing sensor data streams in a smart home application. International Journal of Sensor Networks, 32(4), 247-258. https://doi.org/10.1504/IJSNET.2020.106603

Klemets, J., Määttälä, J., & Hakala, I. (2019). Integration of an in-home monitoring system into home care nurses’ workflow : A case study. International Journal of Medical Informatics, 123, 29-36. https://doi.org/10.1016/j.ijmedinf.2018.12.006

Klemets, J., Määttälä, J., Jansson, J., & Hakala, I. (2017). Nurses' Perspectives on In-Home Monitoring of Elderlies's Motion Pattern. In R. Randell, R. Cornet, C. McCowan, N. Peek, & P. J. Scott (Eds.), Informatics for Health: Connected Citizen-Led Wellness and Population Health (pp. 23-27). IOS Press. Studies in Health Technology and Informatics, 235. https://doi.org/10.3233/978-1-61499-753-5-23

Hakala, I., & Luomala, J. (2017). Peer-to-peer cooperative GNSS-based localization for stationary reference nodes in wireless sensor networks. In Proceedings of 2017 International Conference on Localization and GNSS (ICL-GNSS) (pp. 1-6). IEEE. International Conference on Localization and GNSS. https://doi.org/10.1109/ICL-GNSS.2017.8376241

Kivelä, I., & Hakala, I. (2015). Area-based environmental noise measurements with a wireless sensor network. In C. Glorieux (Ed.), Euronoise 2015 : 10th European Congress and Exposition on Noise Control Engineering (pp. 2351-2356). European Acoustic Association. Proceedings : European Conference on Noise Control. https://www.conforg.fr/euronoise2015/proceedings/data/articles/000478.pdf

Luomala, J., & Hakala, I. (2015). Effects of Temperature and Humidity on Radio Signal Strength in Outdoor Wireless Sensor Networks. In M. Ganzha, L. Maciaszek, & M. Paprzycki (Eds.), Proceedings of the 2015 Federated Conference on Computer Science and Information Systems (pp. 1247-1255). IEEE. Annals of Computer Science and Information Systems, 5. https://doi.org/10.15439/2015F241

Miranda, J., Mäkitalo, N., Garcia-Alonso, J., Berrocal, J., Mikkonen, T., Canal, C., Murillo, J. (2015). From the Internet of Things to the Internet of People. IEEE Internet Computing. Vol.19 (pp. 40-47). IEEE.

Hongell, T., Kivelä, I., & Hakala, I. (2014). Wireless Strain Gauge Network : Best-Hall Measurement Case. In W. Seah, S. Maag, & J. Gubbi (Eds.), Proceedings of IEEE ISSNIP 2014 : IEEE Ninth International Conference on Intelligent Sensors, Sensor Networks and Information Processing (pp. 1-6). IEEE. https://doi.org/10.1109/ISSNIP.2014.6827665

Hongell, T., & Hakala, I. (2013). CiNetStrain-Wireless Strain Gauge Network-calibration and Reliability Measurements. In J. Zheng, N. Mitton, J. Li, & P. Lorenz (Eds.), Ad Hoc Networks 2012 (pp. 275-288). Springer. Lecture Notes of the Institute for Computer Sciences, Social Informatics and Telecommunications Engineering, 111. https://doi.org/10.1007/978-3-642-36958-2_19

Gao, C., & Hakala, I. (2012). Road Traffic Detection Using Wireless Noise Sensors. In IEEE ICC 2012 Conference Proceedings (pp. 767-771). IEEE Communications Society. IEEE International Conference on Communications. https://doi.org/10.1109/icc.2012.6364270

Gao, C., Kivelä, I., Tan, X., & Hakala, I. (2012). A transmission Scheduling for Data-Gathering Wireless Sensor Networks. In B. O. Apduhan, C.-H. Hsu, T. Dohi, K. Ishida, L. T. Yang, & J. Ma (Eds.), The proceedings of the 9th International Conference on Ubiquitous Intelligence and Computing and 9th International Conference on Autonomic and Trusted Computing (pp. 292-297). IEEE. https://doi.org/10.1109/UIC-ATC.2012.48

Hakala, I., & Hongell, T. (2012). Neighbourtables-A Cross-layer Solution for Wireless CiNet Network Analysis and Diagnostics. Sensors & Transducers, 14-2(special issue), 228-241. http://www.sensorsportal.com/HTML/DIGEST/march_2012/SENSORCOMM/P_SI_211.pdf

Luomala, J., & Hakala, I. (2012). Towards Adaptive Localization in Wireless Sensor Networks. In R. Chen, & H. Kuusniemi (Eds.), The proceedings of the 2nd International Conference and Exhibition on Ubiquitous Positioning, Indoor Navigation, and Location Based Service. IEEE. https://doi.org/10.1109/upinlbs.2012.6409778

Kivelä, I., Gao, C., Luomala, J., & Hakala, I. (2011). Design of noise measurement sensor network: networking and communication part. In J. M. Hovem, J. Ellul, L. Gomez, & Y. Reddy (Eds.), Proceeding of the fifth international conference on sensor technologies and applications (pp. 280-287). Xpert Publishing Services.

Kivelä, I., Gao, C., Luomala, J., Ihalainen, J., & Hakala, I. (2011). Design of Networked Low-Cost Wireless Noise Measurement Sensor. Sensors & Transducers journal, Vol. 10, 171-190. http://www.sensorsportal.com/HTML/DIGEST/Special_Issue_Feb_2011.htm

Hakala, I., & Hongell, T. (2011). Wireless CiNet Network Analysis and Diagnostics Using Neighbourtables. In J. M. Hovem, J. Ellul, L. Gomez, & Y. Reddy (Eds.), Proceeding of the fifth international conference on sensor technologies and applications (pp. 110-115). Xpert Publishing Services. http://www.thinkmind.org/index.php?view=article&articleid=sensorcomm_2011_4_40_10200

Hakala, I., Hongell, T., & Luomala, J. (2010). CiNetView - Graphic Interface forWireless Sensor Network Deployment and Monitoring. In The Fourth International Conference on Sensor Technologies and Applications (pp. 395-401). https://doi.org/10.1109/sensorcomm.2010.65

Hakala, I., Ihalainen, J., Kivelä, I., & Tikkakoski, M. (2010). Evaluation of Environmental Wireless Sensor Network - Case Foxhouse. International Journal on Advances in Networks and Services, 3 (2010)(1-2). http://www.iariajournals.org/networks_and_services/index.html

Hakala, I., Kivelä, I., Ihalainen, J., Luomala, J., & Gao, C. (2010). Design of Low-Cost Noise Measurement Sensor Network: Sensor Function Design. In The First International Conference on Sensor Device Technologies and Applications (pp. 172-179). https://doi.org/10.1109/sensordevices.2010.39

Hakala, I., Tikkakoski, M., & Kivelä, I. (2008). Wireless sensor network in environmental monitoring-case foxhouse. In Proceedings of the second international conference on sensor technologies and applications. https://doi.org/10.1109/sensorcomm.2008.27

Borg, F., Finell, M., Hakala, I., & Herrala, M. (2007). Analyzing gastrocnemius EMG-activity and sway data from quiet and perturbed standing. Journal of electromyography and kinesiology, 17(4), 622-634. https://doi.org/10.1016/j.jelekin.2006.06.004

Hakala, I., & Tikkakoski, M. (2006). From vertical to horizontal architecture - a cross-layer implementation in a sensor netwrk node. In Proceedings of the First Intersense conference in Integrated Internet Ad hoc and Sensor Networks.

Tervonen, J., Sorvoja, V., Tikkakoski, M., Hakala, I., Weckström, P., Bialowas, M., Malinen, H. & Turpeenoja, M. (2006). Control system utilising wireless communication and GPS position for a direct seeding drill. Icma 2006 Conference Proceedings.