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October 30, 2024
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Spectral Efficiency Evaluation of an NR-Based 5G Terrestrial Broadcast System for Fixed Reception

Publicated to: IEEE TRANSACTIONS ON BROADCASTING. 68 (2): 487-500 - 2022-06-01 68(2), DOI: 10.1109/TBC.2022.3142956

Authors:

Shitomi, T; Nakatogawa, T; Sato, A; Furuya, K; Okano, M
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Affiliations

Japan Broadcasting Corp NHK, Sci & Technol Res Labs - Author
Univ Politecn Valencia, iTEAM Res Inst - Author

Abstract

LTE-based 5G terrestrial broadcasting, standardized in 3GPP Release 16, allows broadcasters to reach cellular devices. In this paper, toward the development of a future terrestrial broadcast system in Release 18 or later called 5G-Advanced, a specification for New Radio (NR) based 5G terrestrial broadcasting is presented for a 6 MHz-channel raster, which is used in current digital terrestrial television broadcasting. The transmission performance is evaluated in physical layer simulations. In particular, the spectral efficiency is evaluated and compared with a second-generation DTTB system at a required carrier-to-noise ratio (CNR) of 20 dB in a fixed-reception scenario with a rooftop receiving antenna. The evaluation in an additive white Gaussian noise channel indicates that the spectral efficiency of NR-based 5G terrestrial broadcasting can be improved by 0.83 (bps/Hz) by enhancing the code length of low density parity check code, the carrier modulation scheme, guard band ratio, and cyclic prefix ratio from what available so far in Release 16. Furthermore, when frequency interleaving is incorporated, the spectral efficiency is increased by 0.75 (bps/Hz) in a short echo channel with a desired-to-undesired signal power ratio of 0 dB. The introduction of time interleaving increases spectral efficiency by 0.97 (bps/Hz) in an impulsive interference channel with a carrier-to-interference signal power ratio of -20 dB. For each interleaving, the increase in spectral efficiency tends to be higher as the required CNR increases.
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Keywords

5g broadcast5g mobile communication5g mobile communication systemsAdvanced isdb-tBandwidthCarrier to noise ratioChannel codingChannel estimationData communicationData-communicationDecodingDigital multimedia broadcastingDigital radioDigital televisionEfficiencyGaussian noise (electronic)ModulationNetwork layersNew radioNrParity check codesPhysical layerPhysical layersRadio broadcastingReceiving antennasSatellite communication systemsServicesSignal encodingSpectral efficienciesSpectral efficiencyTelevision broadcastingTerrestrial broadcast systemsTerrestrial broadcastingTestsTurbo codesWhite noise

Quality index

Bibliometric impact. Analysis of the contribution and dissemination channel

The work has been published in the journal IEEE TRANSACTIONS ON BROADCASTING due to its progression and the good impact it has achieved in recent years, according to the agency Scopus (SJR), it has become a reference in its field. In the year of publication of the work, 2022, it was in position , thus managing to position itself as a Q1 (Primer Cuartil), in the category Media Technology. Notably, the journal is positioned above the 90th percentile.

Independientemente del impacto esperado determinado por el canal de difusión, es importante destacar el impacto real observado de la propia aportación.

Según las diferentes agencias de indexación, el número de citas acumuladas por esta publicación hasta la fecha 2026-04-03:

  • WoS: 5
  • Scopus: 9
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Impact and social visibility

From the perspective of influence or social adoption, and based on metrics associated with mentions and interactions provided by agencies specializing in calculating the so-called "Alternative or Social Metrics," we can highlight as of 2026-04-03:

  • The use of this contribution in bookmarks, code forks, additions to favorite lists for recurrent reading, as well as general views, indicates that someone is using the publication as a basis for their current work. This may be a notable indicator of future more formal and academic citations. This claim is supported by the result of the "Capture" indicator, which yields a total of: 2 (PlumX).
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Leadership analysis of institutional authors

This work has been carried out with international collaboration, specifically with researchers from: Japan.

There is a significant leadership presence as some of the institution’s authors appear as the first or last signer, detailed as follows: First Author (Shitomi, T) .

the author responsible for correspondence tasks has been Shitomi, T.

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