Zobrazeno 1 - 10
of 13
pro vyhledávání: '"Järvensivu, Pertti"'
Autor:
Höyhtyä, Marko, Boumard, Sandrine, Yastrebova, Anastasia, Järvensivu, Pertti, Kiviranta, Markku, Anttonen, Antti
During the New Space era small countries are becoming important players in the space business. While space activities are rapidly increasing globally, it is important to make operations in a sustainable and safe way in order to preserve satellite ser
Externí odkaz:
http://arxiv.org/abs/2201.02408
Akademický článek
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Autor:
Höyhtyä, Marko, Majanen, Mikko, Hoppari, Mika, Järvensivu, Pertti, Kokkinen, Heikki, Reis-Kivinen, Arto, Ojaniemi, Jaakko, Pellay, Olivier, Pham Minh, Duc
Publikováno v:
Höyhtyä, M, Majanen, M, Hoppari, M, Järvensivu, P, Kokkinen, H, Reis-Kivinen, A, Ojaniemi, J, Pellay, O & Minh, D P 2019, Licensed shared access testbed for integrated satellite-terrestrial communications : The ASCENT project . in Advances in Communications Satellite Systems : 37th International Communications Satellite Systems Conference (ICSSC 2019) . Institution of Engineering and Technology IET, IET Conference Publications, vol. 774, 37th International Communications Satellite Systems Conference, ICSSC 2019, Okinawa, Japan, 29/10/19 . https://doi.org/10.1049/cp.2019.1221
Höyhtyä, M, Majanen, M, Hoppari, M, Järvensivu, P, Kokkinen, H, Reis-Kivinen, A, Ojaniemi, J, Pellay, O & Pham Minh, D 2020, Licensed shared access testbed for integrated satelliteterrestrial communications: The ASCENT project . in Advances in Communications Satellite Systems : Proceedings of The 37th International Communications Satellite Systems Conference (ICSSC-2019) . Institution of Engineering and Technology IET, 37th International Communications Satellite Systems Conference, ICSSC 2019, Okinawa, Japan, 29/10/19 .
Höyhtyä, M, Majanen, M, Hoppari, M, Järvensivu, P, Kokkinen, H, Reis-Kivinen, A, Ojaniemi, J, Pellay, O & Pham Minh, D 2020, Licensed shared access testbed for integrated satelliteterrestrial communications: The ASCENT project . in Advances in Communications Satellite Systems : Proceedings of The 37th International Communications Satellite Systems Conference (ICSSC-2019) . Institution of Engineering and Technology IET, 37th International Communications Satellite Systems Conference, ICSSC 2019, Okinawa, Japan, 29/10/19 .
The ASCENT project studies spectrum sharing betweensatellite and cellular networks using a Licensed SharedAccess (LSA) approach, in which information stored in adatabase is exploited to enable spectrum sharing betweenusers. The project focuses on one
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=dedup_wf_001::6d33821378acc00d2b0e828137c4cc1a
https://cris.vtt.fi/en/publications/6ccba968-7847-4315-aafd-b46ba7227d85
https://cris.vtt.fi/en/publications/6ccba968-7847-4315-aafd-b46ba7227d85
Autor:
Höyhtyä, Marko, Majanen, Mikko, Hoppari, Mika, Järvensivu, Pertti, Kokkinen, Heikki, Ojaniemi, Jaakko, Reis‐Kivinen, Arto, Pellay, Olivier, Pham‐Minh, Duc, Guta, Maria
Publikováno v:
International Journal of Satellite Communications & Networking; Jul/Aug2021, Vol. 39 Issue 4, p455-472, 18p
Publikováno v:
Höyhtyä, M, Ojanperä, T, Mäkelä, J, Ruponen, S & Järvensivu, P 2017, Integrated 5G satellite-terrestrial systems : Use cases for road safety and autonomous ships . in 23rd Ka and Broadband Communications Conference : online proceedings . Ka and Broadband Communications, Ka and Broadband Communications Conference, vol. 23, 23rd Ka and Broadband Communications Conference (KaConf), Trieste, Italy, 16/10/17 . < http://proceedings.kaconf.org/papers/2017/ka9_1.pdf >
In this article, we describe an integrated satellite-terrestrial system for 5G and beyond. The focus of this paper is to describe the system architecture, define the most important technological advances, and specifically look at challenges and solut
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=355e65625b88::addce83d8d9281d93514f79e604d3805
https://cris.vtt.fi/en/publications/6d4d7bd1-4e64-48e7-975b-c7229a9b04cc
https://cris.vtt.fi/en/publications/6d4d7bd1-4e64-48e7-975b-c7229a9b04cc
Autor:
Puttonen, Jani, Zhang, Jie, Puchko, Oleksandr, Kurjenniemi, Janne, Salaris, Paolo, Masci, Aldo, Romanato, Roberto, Di Lanzo, Domenico, Falzini, Stefano, Buchanan, Neil, Kim, Haesik, Paaso, Henna, Seppänen, Janne, Järvensivu, Pertti, Martini, Gianluca, Pagnani, Alberto, Aguilar Sánchez, Ignacio
Publikováno v:
Puttonen, J, Zhang, J, Puchko, O, Kurjenniemi, J, Salaris, P, Masci, A, Romanato, R, Di Lanzo, D, Falzini, S, Buchanan, N, Kim, H, Paaso, H, Seppänen, J, Järvensivu, P, Martini, G, Pagnani, A & Aguilar Sánchez, I 2016, Robust telemetry system for future launchers . in 2016 International Workshop on Tracking, Telemetry and Command Systems for Space Applications (TTC) . European Space Agency (ESA), 7th ESA International Workshop on Tracking, Telemetry and Command Systems for Space Applications, TTC 2016, Noordwijk, Netherlands, 13/09/16 . < https://ieeexplore.ieee.org/document/7802832 >
This article presents a consideration of a new robust telemetry (TM) system for future launchers. The main target is to increase the maximum data rate of TM system to at least 5 Mbps with improvements such as more efficient physical layer, advanced a
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=355e65625b88::f76781191e139f0a72399ed0770f52c7
https://cris.vtt.fi/en/publications/b2347c60-5075-43e6-bbf6-acc32277fe15
https://cris.vtt.fi/en/publications/b2347c60-5075-43e6-bbf6-acc32277fe15
Autor:
Kim, Haesik, Järvensivu, Pertti
Publikováno v:
Kim, H & Järvensivu, P 2016, ' Channel coding and modulation for launch vehicle telemetry system ', Paper presented at 7th ESA International Workshop on Tracking, Telemetry and Command Systems for Space Applications, TTC 2016, Noordwijk, Netherlands, 13/09/16-16/09/16 .
The launcher telemetry (TM) system would require a high throughput radio link to support high data volumes and realtime video transmission. In order to improve the throughput of the current systems, a new channel coding scheme should be used and adap
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=355e65625b88::025db76b1d7e0ba147e1e4439860dbed
https://cris.vtt.fi/en/publications/d2e7f9ce-f2a8-4c4f-90ad-14d3e67f801a
https://cris.vtt.fi/en/publications/d2e7f9ce-f2a8-4c4f-90ad-14d3e67f801a
Autor:
Anttonen, Antti, Apilo, Olli, Aurinsalo, Jouko, Boumard, Sandrine, Chen, Xianfu, Chen, Tao, Dufva, Tommi, Evesti, Antti, Hekkala, Atso, Hiivala, Mikko, Horsmanheimo, Seppo, Höyhtyä, Marko, Järvensivu, Pertti, Kim, Haesik, Kotelba, Adrian, Maskey, Niwas, Matinmikko, Marja, Mustonen, Miia, Mämmelä, Aarne, Mämmelä, Olli, Ojanperä, Tiia, Paaso, Henna, Palola, Marko, Pinola, Jarno, Piri, Esa, Rautio, Teemu, Ruponen, Sami, Sten, Johan, Suomalainen, Jani, Tuomimäki, Lotta, Vehkaperä, Janne
Publikováno v:
Lasanen, M (ed.), Anttonen, A, Apilo, O, Aurinsalo, J, Boumard, S, Chen, X, Chen, T, Dufva, T, Evesti, A, Hekkala, A, Hiivala, M, Horsmanheimo, S, Höyhtyä, M, Järvensivu, P, Kim, H, Kotelba, A, Maskey, N, Matinmikko, M, Mustonen, M, Mämmelä, A, Mämmelä, O, Ojanperä, T, Paaso, H, Palola, M, Pinola, J, Piri, E, Rautio, T, Ruponen, S, Sten, J, Suomalainen, J, Tuomimäki, L & Vehkaperä, J 2015, Critical technologies towards 5G : Research Results Report . VTT Technical Research Centre of Finland . < https://publications.vtt.fi/julkaisut/muut/2015/Critical_technologies_towards_5G.pdf >
Research and development of the fifth generation (5G) mobile networks has started strongly and European Commission sees that "5G will be the very backbone of the new digital economy." This report presents many example research results obtained in VTT
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=355e65625b88::de20c23f3d21909ab9cdd5fffe9387f0
https://cris.vtt.fi/en/publications/c6ad1c12-216c-480d-9e98-f6615a7f8309
https://cris.vtt.fi/en/publications/c6ad1c12-216c-480d-9e98-f6615a7f8309
Autor:
Järvensivu, Pertti, Holmberg, Jan, Karttaavi, Timo, Kiviranta, Markku, Lamminen, Antti, Mämmelä, Aarne, Paaso, Henna, Säily, Jussi, Vimpari, Antti
Publikováno v:
Järvensivu, P, Holmberg, J, Karttaavi, T, Kiviranta, M, Lamminen, A, Mämmelä, A, Paaso, H, Säily, J & Vimpari, A 2006, ' Nopeampi WLAN halvemmalla : CMOS-ja LTCC-tekniikoilla 60 gigahertsin radio ', Prosessori, vol. 26, no. 11, pp. 62-63 .
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=355e65625b88::6af8ff90aa0123f80146b5c5c15c0a40
https://cris.vtt.fi/en/publications/7258d1d2-ef39-4f2a-81e3-00a3163b4ac0
https://cris.vtt.fi/en/publications/7258d1d2-ef39-4f2a-81e3-00a3163b4ac0
Publikováno v:
Mämmelä, A, Polydoros, A & Järvensivu, P 2002, Data and channel estimators: a systematic classification . in Proceedings of the X National Symposium of Radio Science, URSI 2002 . pp. 13-25, National Symposium of Radio Science, URSI 2002, Poxnan, Poland, 14/03/02 .
A taxonomy of algorithms in digital receivers is presented, including data, channel and joint estimators. The receiver is seen as an elaborate estimator, whose primary purpose is to estimate (or "detect") the data. In communications, the impulse resp
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=355e65625b88::570ba8ecf514872d1e8ed457cbafb869
https://cris.vtt.fi/en/publications/32d4648d-adde-4e0e-9f44-5a48af85fdfd
https://cris.vtt.fi/en/publications/32d4648d-adde-4e0e-9f44-5a48af85fdfd