Zobrazeno 1 - 10
of 614
pro vyhledávání: '"Mikko Valkama"'
Autor:
Lucie Klus, Roman Klus, Elena Simona Lohan, Jari Nurmi, Carlos Granell, Mikko Valkama, Jukka Talvitie, Sven Casteleyn, Joaquín Torres-Sospedra
Publikováno v:
Data in Brief, Vol 54, Iss , Pp 110356- (2024)
Positioning in indoor scenarios using signals of opportunity is an effective solution enabling accurate and reliable performance in Global Navigation Satellite System (GNSS)-obscured scenarios. Despite the availability of numerous fingerprinting data
Externí odkaz:
https://doaj.org/article/45172f91915745f7a299365d29e1c77a
Autor:
Alice Chillet, Robin Gerzaguet, Karol Desnos, Matthieu Gautier, Elena Simona Lohan, Erwan Nogues, Mikko Valkama
Publikováno v:
IEEE Open Journal of the Communications Society, Vol 5, Pp 3735-3752 (2024)
This paper proposes to explore the Radio Frequency Fingerprint (RFF) identification with a virtual database generator. RFF is a unique signature created in the emitter transmission chain by the hardware impairments. These impairments may be used as a
Externí odkaz:
https://doaj.org/article/d32ac46985934ae7b6f5f871f717d316
Publikováno v:
IET Microwaves, Antennas & Propagation, Vol 16, Iss 6, Pp 316-326 (2022)
Abstract Wireless communication and radars will play a crucial role for autonomous vehicles in the nearest future. However, the blockage caused by surrounding cars can degrade communication performance, while automotive radars are never aimed to oper
Externí odkaz:
https://doaj.org/article/fe21ce3474ba44eabb853ea4ff03d66b
Embedding the Localization and Imaging Functions in Mobile Systems: An Airport Surveillance Use Case
Publikováno v:
IEEE Open Journal of the Communications Society, Vol 3, Pp 1656-1671 (2022)
Driven by the extended applications and scarce spectrum resources, integrating the radio sensing functions into the future mobile system has been a consensus between the stakeholders. This paper demonstrates the feasibility of joint localization and
Externí odkaz:
https://doaj.org/article/f4dea069a38c4871b7253a6c9923d5ae
Publikováno v:
IEEE Open Journal of the Communications Society, Vol 3, Pp 282-300 (2022)
In this paper, a novel waveform with low peak-to-average power ratio (PAPR) and high robustness against phase noise (PN) is presented. It follows the discrete Fourier transform spread orthogonal frequency division multiplexing (DFT-s-OFDM) signal mod
Externí odkaz:
https://doaj.org/article/470ddbf16830461f86e9cc20ff7da970
Autor:
Elena Peralta, Toni Levanen, Mikko Mäenpää, Youngsoo Yuk, Klaus Pedersen, Sari Nielsen, Mikko Valkama
Publikováno v:
EURASIP Journal on Wireless Communications and Networking, Vol 2021, Iss 1, Pp 1-22 (2021)
Abstract In time division duplexing based mobile networks, under certain atmospheric ducting conditions, the uplink reception may be interfered by the downlink transmissions of remote base-stations (gNBs) located hundreds of kilometers away. This pap
Externí odkaz:
https://doaj.org/article/57cd0bba00244f598aa8284b60fe54a5
Autor:
Selahattin Gokceli, Toni Levanen, Taneli Riihonen, Juha Yli-Kaakinen, Alberto Brihuega, Matias Turunen, Markku Renfors, Mikko Valkama
Publikováno v:
IEEE Open Journal of the Communications Society, Vol 2, Pp 48-66 (2021)
The physical-layer radio access of 5G New Radio (NR) and other modern wireless networks builds on the cyclic prefix (CP) orthogonal frequency-division multiplexing (OFDM), known to suffer from the high peak-to-average power ratio (PAPR) challenge. In
Externí odkaz:
https://doaj.org/article/f5e559013375463497f3e35c28f97d38
Autor:
Carlos De Lima, Didier Belot, Rafael Berkvens, Andre Bourdoux, Davide Dardari, Maxime Guillaud, Minna Isomursu, Elena-Simona Lohan, Yang Miao, Andre Noll Barreto, Muhammad Reza Kahar Aziz, Jani Saloranta, Tachporn Sanguanpuak, Hadi Sarieddeen, Gonzalo Seco-Granados, Jaakko Suutala, Tommy Svensson, Mikko Valkama, Barend Van Liempd, Henk Wymeersch
Publikováno v:
IEEE Access, Vol 9, Pp 26902-26925 (2021)
Herein, we focus on convergent 6G communication, localization and sensing systems by identifying key technology enablers, discussing their underlying challenges, implementation issues, and recommending potential solutions. Moreover, we discuss exciti
Externí odkaz:
https://doaj.org/article/9eef0fe4dce146f59097f6355648d49a
Publikováno v:
IEEE Open Journal of the Communications Society, Vol 2, Pp 1188-1204 (2021)
This paper describes and investigates a novel concept of frequency-domain spectral shaping (FDSS) with spectral extension for the uplink (UL) coverage enhancement in 5G New Radio (NR), building on discrete Fourier transform spread orthogonal frequenc
Externí odkaz:
https://doaj.org/article/19547dd9670d45fdab535ca75fc87c7a
Publikováno v:
IEEE Access, Vol 8, Pp 55513-55525 (2020)
The extension from centimeter wave frequencies to millimeter wave (mmWave) frequencies has triggered an enormous transformation in terms of radio access architecture for future wireless networks, and it has therefore empowered unlimited opportunities
Externí odkaz:
https://doaj.org/article/b8211d2854724e5eb7134bb9d5199991