Zobrazeno 1 - 10
of 16
pro vyhledávání: '"Olli Apilo"'
Autor:
Grigorios Kakkavas, Maria Diamanti, Adamantia Stamou, Vasileios Karyotis, Faouzi Bouali, Jarno Pinola, Olli Apilo, Symeon Papavassiliou, Klaus Moessner
Publikováno v:
Sensors, Vol 22, Iss 2, p 426 (2022)
The ongoing transition towards 5G technology expedites the emergence of a variety of mobile applications that pertain to different vertical industries. Delivering on the key commitment of 5G, these diverse service streams, along with their distinct r
Externí odkaz:
https://doaj.org/article/7fb070e6d3bf4c51add7a6daf9f57791
Publikováno v:
VTC Spring
Apilo, O, Pinola, J, Ahola, R, Kemppainen, J & Happonen, J 2021, Experimental evaluation of a traffic warning system based on accurate driver condition assessment and 5G connectivity . in 2021 IEEE 93rd Vehicular Technology Conference, VTC 2021-Spring-Proceedings . IEEE Institute of Electrical and Electronic Engineers, IEEE Vehicular Technology Conference, vol. 2021-April, 93rd IEEE Vehicular Technology Conference, VTC 2021-Spring, Virtual, Online, 25/04/21 . https://doi.org/10.1109/VTC2021-Spring51267.2021.9448881
Apilo, O, Pinola, J, Ahola, R, Kemppainen, J & Happonen, J 2021, Experimental evaluation of a traffic warning system based on accurate driver condition assessment and 5G connectivity . in 2021 IEEE 93rd Vehicular Technology Conference, VTC 2021-Spring-Proceedings . IEEE Institute of Electrical and Electronic Engineers, IEEE Vehicular Technology Conference, vol. 2021-April, 93rd IEEE Vehicular Technology Conference, VTC 2021-Spring, Virtual, Online, 25/04/21 . https://doi.org/10.1109/VTC2021-Spring51267.2021.9448881
Reliable detection and sharing of information about fatigued or otherwise impaired drivers can provide valuable extra information to improve cooperative road traffic safety services. With such information, connected manually driven or automated vehic
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::86036c26f87d2c1d670e38246d9c05a4
https://doi.org/10.1109/vtc2021-spring51267.2021.9448881
https://doi.org/10.1109/vtc2021-spring51267.2021.9448881
Publikováno v:
PIMRC Workshops
Apilo, O, Makela, J & Kuosmonen, A 2019, Evaluation of cellular iot for sport wearables . in 2019 IEEE 30th International Symposium on Personal, Indoor and Mobile Radio Communications : PIMRC Workshops 2019 ., 8880850, IEEE Institute of Electrical and Electronic Engineers, 30th IEEE Annual International Symposium on Personal, Indoor and Mobile Radio Communications, PIMRC 2019, Istanbul, Turkey, 8/09/19 . https://doi.org/10.1109/PIMRCW.2019.8880850
Apilo, O, Makela, J & Kuosmonen, A 2019, Evaluation of cellular iot for sport wearables . in 2019 IEEE 30th International Symposium on Personal, Indoor and Mobile Radio Communications : PIMRC Workshops 2019 ., 8880850, IEEE Institute of Electrical and Electronic Engineers, 30th IEEE Annual International Symposium on Personal, Indoor and Mobile Radio Communications, PIMRC 2019, Istanbul, Turkey, 8/09/19 . https://doi.org/10.1109/PIMRCW.2019.8880850
In this paper, we evaluate the suitability of LTE for Machine-Type Communications (LTE-M) and Narrowband IoT (NB-IoT) for sport wearables. The evaluation is done in a live test network using commercial evaluation boards. The performance is measured i
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::140f9f10c86163df10e5f511aa59ff8b
https://doi.org/10.1109/PIMRCW.2019.8880850
https://doi.org/10.1109/PIMRCW.2019.8880850
Publikováno v:
Apilo, O, Lasanen, M & Mämmelä, A 2016, ' Energy-efficient dynamic point selection and scheduling method for intra-cell CoMP in LTE-A ', Wireless Personal Communications, vol. 86, no. 2, pp. 705-726 . https://doi.org/10.1007/s11277-015-2953-6
In this paper, we propose a novel dynamic point selection (DPS) and user scheduling method for improving the energy efficiency in distributed antenna systems without cell edge spectral efficiency degradation. When DPS is used, each user is served by
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::e7b41862ccb87085bbc5c3f146fdbc3a
https://doi.org/10.1007/s11277-015-2953-6
https://doi.org/10.1007/s11277-015-2953-6
Publikováno v:
Pihkola, H, Hongisto, M, Apilo, O, Lasanen, M & Vatanen, S 2018, Energy consumption of mobile data transfer – Increasing or decreasing? : Evaluating the impact of technology development & user behavior . in B Penzenstadler, S Easterbrook, C Venters & S Ishtiaqe Ahmed (eds), ICT4S2018. 5th International Conference on Information and Communication Technology for Sustainability . vol. 52, EasyChair, EPiC Series in Computing, vol. 52, pp. 301-315, 5th International Conference on Information and Communication Technology for Sustainability, ICT4S2018, Toronto, Canada, 14/05/18 . https://doi.org/10.29007/ddrc
ICT4S
ICT4S
Mobile data consumption in Finland is among the highest in the world. Increase in mobile data usage has been rapid and continuous growth is foreseen. While the energy consumed per transmitted gigabyte has substantially decreased, it seems that the ab
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::ba0726a8e26c4098ee25bc4decb1ed1b
https://cris.vtt.fi/en/publications/108c4f14-b86d-434b-b9d4-c9cf3e46b54f
https://cris.vtt.fi/en/publications/108c4f14-b86d-434b-b9d4-c9cf3e46b54f
Publikováno v:
VTC-Fall
Apilo, O, Lasanen, M, Wang, J & Mämmelä, A 2018, Cell Splitting for Energy-Efficient Massive MIMO . in 2017 IEEE 86th Vehicular Technology Conference (VTC-Fall) . IEEE Institute of Electrical and Electronic Engineers, IEEE 86th Vehicular Technology Conference, VTC-Fall 2017, Toronto, Canada, 24/09/17 . https://doi.org/10.1109/VTCFall.2017.8288110
Apilo, O, Lasanen, M, Wang, J & Mämmelä, A 2018, Cell Splitting for Energy-Efficient Massive MIMO . in 2017 IEEE 86th Vehicular Technology Conference (VTC-Fall) . IEEE Institute of Electrical and Electronic Engineers, IEEE 86th Vehicular Technology Conference, VTC-Fall 2017, Toronto, Canada, 24/09/17 . https://doi.org/10.1109/VTCFall.2017.8288110
In this paper, we propose a novel cell splitting approach for massive multiple-input multiple-output (MIMO) base stations to improve energy efficiency. The user equipments (UEs) in the cell are divided into two groups based on their distances to the
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::e6865c3d9d31d3825ef17cdccd6312cc
http://juuli.fi/Record/0332193918
http://juuli.fi/Record/0332193918
Autor:
Mikko Uitto, Arto Matilainen, Olli Apilo, Petri Kivinen, Olli Liinamaa, Ari Pouttu, Giuseppe Destino, Jukka Makela, Teemu Kanstren
Publikováno v:
Kanstren, T, Makela, J, Uitto, M, Apilo, O, Pouttu, A, Liinamaa, O, Destino, G, Kivinen, P & Matilainen, A 2018, Vertical Use Cases in the Finnish 5G Test Network . in 2018 European Conference on Networks and Communications, EuCNC 2018 ., 8442509, IEEE Institute of Electrical and Electronic Engineers, pp. 329-334, Europen Conference on Networks and Communications, EuCNC 2018, Ljubljana, Slovenia, 18/06/18 . https://doi.org/10.1109/EuCNC.2018.8442509
EuCNC
EuCNC
The Finnish 5G test network (5GTN) supports development of new network technologies, and services and applications on top of these. It is developed and operated in collaboration with partners from different domains such as research, telecommunication
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::1d0f3cadf65b0fddb150125924b41ac2
http://urn.fi/urn:nbn:fi-fe2019081324087
http://urn.fi/urn:nbn:fi-fe2019081324087
Autor:
Atte Kuosmonen, Jani Kallankari, Markus Berg, Hamid Yadegar Amin, Mikko Hiivala, Aarno Parssinen, Mika Lasanen, Olli Apilo
Publikováno v:
Apilo, O, Hiivala, M, Kuosmonen, A, Kallankari, J, Amin, H, Lasanen, M, Berg, M & Parssinen, A 2018, Measured GPS performance under LTE-M in-device interference . in 2018 9th ESA Workshop on Satellite NavigationTechnologies and European Workshop on GNSS Signals and Signal Processing, NAVITEC 2018 . IEEE Institute of Electrical and Electronic Engineers, ESA Workshop on Satellite Navigation Technologies and European Workshop on GNSS Signals and Signal Processing, vol. 2018-December, 9th ESA Workshop on Satellite NavigationTechnologies and European Workshop on GNSS Signals and Signal Processing, NAVITEC 2018, Noordwijk, Netherlands, 5/12/18 . https://doi.org/10.1109/NAVITEC.2018.8642666
In this paper we present the measurement results for time-to-fix, position accuracy, and carrier-to-noise ratio of mass-market Global Positioning System (GPS) receivers under the in-device interference from an LTE-M transmitter. The laboratory measur
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::a3c2ef0534cd30ec2b8f977d44fbe232
https://cris.vtt.fi/en/publications/53296e21-1643-4ccf-95cf-10a907231482
https://cris.vtt.fi/en/publications/53296e21-1643-4ccf-95cf-10a907231482
Device-to-device (D2D) communication is an essential part of the future fifth generation (5G) system that can be seen as “network of networks”, consisting of multiple seamlessly integrated radio access technologies (RATs). Public safety communica
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::1e4dc87deb11c7cc256d5061fd1fdb1b
https://doi.org/10.20944/preprints201712.0088.v1
https://doi.org/10.20944/preprints201712.0088.v1
Publikováno v:
VTC Spring
Apilo, O, Lasanen, M & Mämmelä, A 2016, Unequal power amplifier dimensioning for adaptive massive MIMO base stations . in 2016 IEEE 83rd Vehicular Technology Conference (VTC Spring) . IEEE Institute of Electrical and Electronic Engineers, IEEE Vehicular Technology Conference, Nanjing, China, 15/05/16 . https://doi.org/10.1109/VTCSpring.2016.7504517
Apilo, O, Lasanen, M & Mämmelä, A 2016, Unequal power amplifier dimensioning for adaptive massive MIMO base stations . in 2016 IEEE 83rd Vehicular Technology Conference (VTC Spring) . IEEE Institute of Electrical and Electronic Engineers, IEEE Vehicular Technology Conference, Nanjing, China, 15/05/16 . https://doi.org/10.1109/VTCSpring.2016.7504517
In this paper, we propose a novel power amplifier (PA) dimensioning method for massive multiple-input multiple-output (MIMO) systems whose number of transmitting antennas is adapted according to the number of user equipments (UEs) in the cell. The di
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::5f690ba115640cbf693c2853b78f7d14
https://cris.vtt.fi/en/publications/e31afe97-d7d4-415f-8f41-7104a82570fe
https://cris.vtt.fi/en/publications/e31afe97-d7d4-415f-8f41-7104a82570fe