Zobrazeno 1 - 9
of 9
pro vyhledávání: '"Sari Nielsen"'
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
Publikováno v:
VTC Spring
Cellular network based connectivity for high speed trains (HSTs) is subject to large carrier frequency offset (CFO) due to high Doppler shifts. Large CFO will cause losing orthogonality between OFDM subcarriers which leads to significant performance
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::777f9b04174b386bb1f59912657759b5
https://trepo.tuni.fi/handle/10024/134756
https://trepo.tuni.fi/handle/10024/134756
Publikováno v:
ISWCS
In this paper, we describe and analyze two different interference measurement (IM) methods for 5G New Radio (NR) networks, with particular emphasis on cell-edge users and thus interference limited scenarios. Specifically, the non-zero-power channel s
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::90126da93a81a4c75132022e12278d7d
https://trepo.tuni.fi/handle/10024/129611
https://trepo.tuni.fi/handle/10024/129611
Autor:
Mikko Valkama, Mikko Maenpaa, Klaus I. Pedersen, Elena Peralta, Youngsoo Yuk, Sari Nielsen, Toni Levanen
Publikováno v:
EuCNC
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 (BSs) located hundreds of kilometers away. This paper address
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::0f1a74a2e2fbdb79580e53ce7780df96
https://trepo.tuni.fi/handle/10024/129610
https://trepo.tuni.fi/handle/10024/129610
Autor:
Mikko Valkama, Sari Nielsen, Tero Ihalainen, Man Hung Ng, Toni Levanen, Markku Renfors, Elena Peralta
Publikováno v:
ISWCS
In this paper, we address and analyze the receiver reference sensitivity requirements for the 5G New Radio (NR) wireless communications systems, which relate to the SNR requirements at the base station to reach 95 % of the maximum throughput defined
Autor:
Elena Virtej, Tero Henttonen, Sari Nielsen, Niko Kolehmainen, Lars Dalsgaard, Petteri Lunden, Esa Malkamaki
Publikováno v:
VTC-Fall
Offloading traffic to small cells is one of the key enablers in achieving high peak data rates in a heterogeneous cellular network deployment. In this paper, we introduce and evaluate a solution to significantly speed up the small cell access in LTE
Autor:
Jorma Kaikkonen, Sari Nielsen, Kari Pajukoski, Toni Levanen, Markku Renfors, Karri Ranta-Aho, Mikko Valkama
Publikováno v:
WCNC
By the introduction of the fifth generation (5G) mobile communication networks and its physical layer entitled as new radio (NR), the question of link performance in coexistence scenario between the 5G NR and fourth generation (4G) mobile communicati
Autor:
Sari Nielsen, Markku Renfors, Mikko Valkama, Toni Levanen, Karri Ranta-Aho, Kari Pajukoski, Jorma Kaikkonen
Publikováno v:
WCNC
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 behavior, inter-allocation interference, and UL multi-user MIMO on the relative performance of thes
Publikováno v:
VTC-Fall
For the 5G new radio physical layer the CP-OFDM waveform has been chosen as the baseline for communications below 40 GHz. The requirement for multicarrier waveforms used for uplink is to achieve similar coverage as achieved by SC-FDMA in LTE uplink.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::2f9405f2a1ca22b0e688fb3fd59b087b
https://trepo.tuni.fi/handle/10024/129254
https://trepo.tuni.fi/handle/10024/129254