Search Results - "Pajukoski, Kari"

Efficient Fast-Convolution-Based Waveform Processing for 5G Physical Layer by Yli-Kaakinen, Juha, Levanen, Toni, Valkonen, Sami, Pajukoski, Kari, Pirskanen, Juho, Renfors, Markku, Valkama, Mikko

“…This paper investigates the application of fast-convolution (FC) filtering schemes for flexible and effective waveform generation and processing in the fifth…”
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Enhanced Uplink Coverage for 5G NR: Frequency-Domain Spectral Shaping With Spectral Extension by Nasarre, Ismael Peruga, Levanen, Toni, Pajukoski, Kari, Lehti, Arto, Tiirola, Esa, Valkama, Mikko

“…This paper describes and investigates a novel concept of frequency-domain spectral shaping (FDSS) with spectral extension for the uplink (UL) coverage…”
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Phase Noise Resilient Three-Level Continuous-Phase Modulation for DFT-Spread OFDM by Renfors, Markku, Nasarre, Ismael Peruga, Levanen, Toni, Pajukoski, Kari, Valkama, Mikko

“…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…”
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On the Waveforms for 5G Mobile Broadband Communications by Vihriala, Jaakko, Ermolova, Natalia, Lahetkangas, Eeva, Tirkkonen, Olav, Pajukoski, Kari

“…To realize the vision of ubiquitous mobile broadband where radio access performance should not be a limiting factor for user experience, we need to access very…”
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On the Potential of OFDM Enhancements as 5G Waveforms by Berardinelli, Gilberto, Pajukoski, Kari, Lahetkangas, Eeva, Wichman, Risto, Tirkkonen, Olav, Mogensen, Preben

“…The ideal radio waveform for an upcoming 5th Generation (5G) radio access technology should cope with a set of requirements such as limited complexity, good…”
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On the Potential of Zero-Tail DFT-Spread-OFDM in 5G Networks by Berardinelli, Gilberto, Tavares, Fernando M. L., Sørensen, Troels B., Mogensen, Preben, Pajukoski, Kari

“…Zero-tail Discrete Fourier Transform -spread OFDM (ZT DFT-s-OFDM) modulation allows to dynamically cope with the delay spread of the multipath channel, thus…”
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Mobile Communications Beyond 52.6 GHz: Waveforms, Numerology, and Phase Noise Challenge by Levanen, Toni, Tervo, Oskari, Pajukoski, Kari, Renfors, Markku, Valkama, Mikko

“…In this article, the 5G New Radio (NR) physical layer evolution to support beyond 52.6 GHz communications is addressed. The performance of both OFDM based and…”
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Transparent Tx and Rx Waveform Processing for 5G New Radio Mobile Communications by Levanen, Toni, Pirskanen, Juho, Pajukoski, Kari, Renfors, Markku, Valkama, Mikko

“…Several different waveform processing techniques have been studied and proposed for the 5G new radio (NR) physical layer, to support new mixed numerology and…”
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Frequency-Domain Signal Processing for Spectrally-Enhanced CP-OFDM Waveforms in 5G New Radio by Yli-Kaakinen, Juha, Loulou, Alaaeddin, Levanen, Toni, Pajukoski, Kari, Palin, Arto, Renfors, Markku, Valkama, Mikko

“…Orthogonal frequency-division multiplexing (OFDM) has been selected as the basis for the fifth-generation new radio (5G NR) waveform developments. However,…”
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Full-duplex self-backhauling for small-cell 5G networks by Pitaval, Renaud-Alexandre, Tirkkonen, Olav, Wichman, Risto, Pajukoski, Kari, Lahetkangas, Eeva, Tiirola, Esa

“…We consider in-band self-backhauling for small cell 5G systems. In-band self-backhauling enables efficient usage of frequency resources. When coupled with a…”
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Beamformed Radio Link Capacity Under Positioning Uncertainty by Talvitie, Jukka, Levanen, Toni, Koivisto, Mike, Ihalainen, Tero, Pajukoski, Kari, Valkama, Mikko

“…Beamforming is one of the key technologies for achieving the high performance criteria in various modern and future wireless communications systems, in…”
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On the Performance of Multiuser MIMO in UTRA FDD Uplink by Hämäläinen, Jyri, Pajukoski, Kari, Tiirola, Esa, Wichman, Risto, Ylitalo, Juha

“…We study the uplink performance of MIMO systems in UTRA FDD using noise rise and system load as performance measures. Results show that the uplink coverage and…”
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On the Performance of Multiuser MIMO in UTRA FDD Uplink by Hämäläinen, Jyri, Pajukoski, Kari, Tiirola, Esa, Wichman, Risto, Ylitalo, Juha

“…: We study the uplink performance of MIMO systems in UTRA FDD using noise rise and system load as performance measures. Results show that the uplink coverage…”
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Novel Tone Reservation Method for DFT-s-OFDM by Gokceli, Selahattin, Peruga, Ismael, Tiirola, Esa, Pajukoski, Kari, Riihonen, Taneli, Valkama, Mikko

“…In this letter, a novel guard-tone reservation (GTR) method is proposed to reduce the peak-to-average power ratio (PAPR) of discrete Fourier…”
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Positioning of high-speed trains using 5G new radio synchronization signals by Talvitie, Jukka, Levanen, Toni, Koivisto, Mike, Pajukoski, Kari, Renfors, Markku, Valkama, Mikko

“…We study positioning of high-speed trains in 5G new radio (NR) networks by utilizing specific NR synchronization signals. The studies are based on simulations…”
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Reference sequence design for zero-tail DFT-spread-OFDM by Berardinelli, Gilberto, Frederiksen, Frank, Pedersen, Klaus, Mogensen, Preben, Pajukoski, Kari

“…Zero-tail Discrete Fourier Transform-spread OFDM (ZT DFT-s-OFDM) modulation replaces the Cyclic Prefix (CP) with a low power tail whose length can be…”
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Cost of Increased Bandwidth Efficiency in 5G NR by Levanen, Toni, Pajukoski, Kari, Renfors, Markku, Valkama, Mikko

“…In this paper, subband filtered CP-OFDM and windowed CP-OFDM waveforms proposed for 5G new radio (NR) are compared to LTE-like downlink and uplink waveforms…”
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FFT-Domain Signal Processing for Spectrally-Enhanced CP-OFDM Waveforms in 5G New Radio by Yli-Kaakinen, Juha, Levanen, Toni, Renfors, Markku, Valkama, Mikko, Pajukoski, Kari

“…Fast Fourier transform (FFT)-domain signal processing has been considered recently as an effective tool for spectrum enhancement of orthogonal…”
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5G new radio uplink performance: Noise, interference and emission constraints by Levanen, Toni, Ranta-Aho, Karri, Kaikkonen, Jorma, Nielsen, Sari, Pajukoski, Kari, Renfors, Markku, Valkama, Mikko

“…This paper investigates the 5G new radio (NR) uplink (UL) performance with CP-OFDM and DFT-s-OFDM based waveforms. The effects of highly non-linear PA…”
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5G new radio and LTE uplink coexistence by Levanen, Toni, Ranta-Aho, Karri, Kaikkonen, Jorma, Nielsen, Sari, Pajukoski, Kari, Renfors, Markku, Valkama, Mikko

“…By the introduction of the fifth generation (5G) mobile communication networks and its physical layer entitled as new radio (NR), the question of link…”
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