"Kalliovaara, Juha" - Selaus tekijän mukaan Julkaisut

Viitteet 1-10 / 10

    • 700 MHz Band LTE Uplink Interference to DTT Reception System Cabling 

      Kalliovaara, Juha; Ekman, Reijo; Jokela, Tero; Arajärvi, Antti; Gylen, Henry; Paavola, Jarkko (Institute of Electrical and Electronic Engineers, 2018)
      This paper studies the shielded screening attenuation of consumer-grade digital terrestrial television (DTT)antenna coaxial cables and presents a measurement campaign to determine their vulnerability to interference ...

    • Allied ICT Finland strategiasarja 1 : langaton tietoliikenne Suomessa 2019-2029 

      Jokela, Tero; Kalliovaara, Juha; Katz, Marco; Mäkelä, Jukka; Paavola, Jarkko; Pirinen, Pekka; Posti, Harri; Pouttu, Ari; Raatikainen, Pertti; Rantakokko, Mika; Rautiola, Kyösti; Riekki, Jukka; Sauvola, Jaakko; Tirkkonen, Olavi
      Allied ICT Finland Strategiasarja : 1 (Allied ICT Finland, 2019)
      Tämän dokumentin tarkoitus on kuvata langattoman tietoliikenteen tutkimuksen ja kehityksen merkitystä sekä niiden luomia mahdollisuuksia Suomen yhteiskunnalle ja teollisuudelle. Lisäksi tarkoitus on visioida Suomen ...

    • Coordinated Spectrum Allocation and Coexistence Management in CBRS-SAS Wireless Networks 

      Kulacz, Lukasz; Kryszkiewicz, Pawel; Kliks, Adrian; Bogucka, Hanna; Ojaniemi, Jaakko; Paavola, Jarkko; Kalliovaara, Juha; Kokkinen, Heikki
      IEEE access (Institute of Electrical and Electronics Engineers, 2019)
      Since the introduction of the idea of cognitive radio, various approaches towards spectrum sharing have been considered, for example, the Licensed Shared Access (LSA), which is considered in Europe, or Citizens Broadband ...

    • Field Measurements to Study the Co-Existence of Geographically Limited Local Industrial Mobile TDD Networks 

      Ekman, Reijo; Talmola, Pekka; Kalliovaara, Juha; Hallio, Juhani; Hyvarinen, Petri; Lakner, Tibor; Jokela, Tero; Paavola, Jarkko; Himmanen, Heidi
      2022 Joint European Conference on Networks and Communications & 6G Summit (EuCNC/6G Summit) (IEEE Xplore, 2022)
      Use of 4G and 5G technologies for local industrial networks has become feasible in recent years. This paper studies the co-existence of two geographically limited adjacent Time Division Duplex (TDD) local networks through ...

    • Katsaus vedenalaisen tiedonsiirron menetelmiin ja ominaisuuksiin 

      Talmola, Pekka; Kalliovaara, Juha
      Turun ammattikorkeakoulun raportteja : 310 (Turun ammattikorkeakoulu, 2025)
      Vedenalaisella tiedonsiirrolla tässä julkaisussa tarkoitetaan veden alla toimivien alus¬ten, laitteiden, sensorien ym. välistä tai pinnalla tapahtuvaa tiedonsiirtoa. Pääpaino on langattomassa tiedonsiirrossa. Perinteisesti ...

    • Measurements to Study the Coexistence of Private LTE TDD Networks in 2.3 GHz Band 

      Ekman, Reijo; Talmola, Pekka; Kalliovaara, Juha; Hallio, Juhani; Hyvarinen, Petri; Lakner, Tibor; Jokela, Tero; Paavola, Jarkko; Himmanen, Heidi
      2021 29th Conference of Open Innovations Association (FRUCT) (IEEE, 2021)
      Private wireless networks have recently gained interest in many business applications. Use of 4G and 5G technologies for private network deployments has become feasible recently. Finnish Transport and Communications Agency ...

    • Rapidly deployable network system for critical communications in remote locations 

      Hallio, Juhani; Savunen, Tapio; Rantanen, Heikki; Ekman, Reijo; Kalliovaara, Juha; Lakner, Tibor; Auranen, Jani; Jokela, Tero; Paavola, Jarkko; Kokkinen, Heikki; Arajärvi, Antti
      IEEE International Symposium on Broadband Multimedia Systems and Broadcasting (Institute of Electrical and Electronic Engineers, 2020)
      This paper presents a transportable and rapidly deployable network system, which can be used to provide local voice, video and data connectivity for critical communications in remote locations and Internet connectivity ...

    • Trial of Spectrum Sharing in 2.3GHz Band for Two Types of PMSE Equipment and Mobile Network 

      Jokela, Tero; Kokkinen, Heikki; Kalliovaara, Juha; Ojaniemi, Jaakko; Kivinen, Arto; Lakner, Tibor; Hallio, Juhani; Paavola, Jarkko (Institute of Electrical and Electronic Engineers, 2018)
      This paper presents a trial on sharing spectrum between different actors in a flexible manner in 2.3 GHz band. Trial demonstrates a flexible use of shared spectrum providing means for the broadcasters and other Programme ...

    • Trials of 60 GHz radio for a future 5G New Radio (NR) solution for high capacity CCTV offload and multimedia transfer 

      Ekman, Reijo; Väre, Jani; Jokela, Tero; Auranen, Jani; Hallio, Juhani; Kalliovaara, Juha; Talmola, Pekka; Paavola, Jarkko; Ritakallio, Ilkka
      IEEE International Symposium on Broadband Multimedia Systems and Broadcasting (Institute of Electrical and Electronic Engineers, 2020)
      This paper studies the radio interface performance of a 60 GHz radio in both indoor and outdoor conditions. The target is to assess its suitability for resolving emerging needs in the public transport, especially, in rail ...

    • Use of wireless communication networks in digitalization of factory environments 

      Rautava, Tuomo; Paavola, Jarkko; Hallio, Juhani; Kalliovaara, Juha; Jokela, Tero
      Proceedings 5th CARPE Conference: Horizon Europe and beyond (Universitat Politècnica València, 2019)
      Wireless communications are rapidly taking an important role in factory environment. The current Wi-Fi technologies struggle to meet the requirements of industrial factories, for example with regard to latency and security. ...