Radio Propagation in Terrestrial Broadcasting Television Systems: A Comprehensive Survey

Aragón‐Zavala, Alejandro; Angueira, Pablo; Montalbán, Jon; Vargas-Rosales, César

doi:10.1109/access.2021.3061034

Cited by 11 publications

(7 citation statements)

References 179 publications

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“…Depending on the occurrence of particular propagation effects, changes in velocity, phase, dispersion, signal degradation, etc. can be modeled (Aragón-Zavala et al, 2021). The DTTB may experience coverage gaps as a result of the frequency bands' propagation characteristics, geographical obstacles, and man-made clutter.…”

Section: (I) Field Strengthmentioning

confidence: 99%

Investigative Assessment of the Impact of Perturbations on the Digital Terrestrial Television Broadcasting Signal

Igbonoba¹,

Bankole²

2023

KJSET

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This study examines the effects of perturbations on the digital terrestrial television broadcasting (DTTB) signal in Jos, Plateau State, Nigeria, using measurement-based performance analysis. In order to examine the effects of environmental perturbations on DTTB signal, measurement campaign used the Nigerian Television Authority, Integrated Television Services (ITS) digital video broadcasting -second generation (DVB-T2) signal. The aim of the research was to identify the environmental and atmospheric perturbations with highest impact on DTTB signal. Field measurement was accurately obtained throughout the measurement campaign using the E8000 series spectrum analyzer, a DVB-T2 receiver, and other facilities in order to actualize the two important measurement characteristics, such as field strength and received signal strength (RSS). The outcome showed a significant amount of dips in route A, depriving towns surrounding rocky hills of a DVB-T2 signal, as demonstrated in the Du community with RSS values of -87.1 dBm, 85.2 dB , and -27.8 dB V/m, -23.9 dB V/m for field strength. Additionally, the results show that signal performance was better in the dry season compared to the rainy season (more primary coverage in the dry season compared to the rainy season), with the RSS value being -41.6 dBm versus -36.4 dBm and the field strength value being 34 dB/m versus 38.6 dB/m for route A, or the same on route B. Solving signal propagation issues requires understanding the fundamental metrics driving an increase in perturbations in any broadcast environment. Creating a model to address these issues will help with system evaluation, network planning, and broadcast service operation, ensuring quality of service (QoS).

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Section: (I) Field Strengthmentioning

confidence: 99%

Investigative Assessment of the Impact of Perturbations on the Digital Terrestrial Television Broadcasting Signal

Igbonoba¹,

Bankole²

2023

KJSET

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“…The estimation of the coverage of DTT stations involves frequency management aspects and databases with equipmentrelated information; accurate knowledge of terrain data where the system is to be deployed; and detailed information on the distribution of the population inside the service area. In addition, the nature of the propagation model in use will be of paramount importance for realistic predictions and efficient and precise network dimensioning [11].…”

Section: B Simulation Parametersmentioning

confidence: 99%

“…This ITU-R Recommendation provides a deeper consideration of potential propagation phenomena and it will provide more accurate path loss results in some specific links. In consequence, ITU-R states that P.1812 should be used for the detailed evaluation of point-to-area signal levels [11], [12]. Furthermore, ITU-R P.1812 is a modern recommendation (last updated in August 2019) and the ease of reproducibility of results and implementation transparency of the ITU-R P.1812 model can allow for a better degree of standardization of a propagation prediction method for point-to-area terrestrial services in the VHF and UHF frequency bands [13].…”

Section: B Simulation Parametersmentioning

confidence: 99%

Quantitative Assessment of VHF and UHF Bands in Brazil After the Analog TV Switch-off

Soares¹,

Dias²

2022

Anais Do XL Simpósio Brasileiro De Telecomunicações E Processamento De Sinais

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In this paper, we study the usage of 174-216 MHz VHF band and 470-698 MHz UHF band after the analog TV switch-off in Brazil, expected to be finished in December 2023. After a database analysis, we estimated that more than 16 thousand Digital TV channels will be operative. Coverage simulations of these channels were predicted using Recommendation ITU-R P.1812, whose results show that on average 177 MHz in the studied bands will be idle in the Brazilian municipalities. Spectrum usage results indicate the viability of introducing other services rather than broadcasting in the VHF/UHF bands, such as TV White Spaces Devices, but also indicate difficulties for the deployment of Next-Generation Digital TV Systems.

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“…Their proposal to add clutter loss in the model was accepted and resulted in a new model version. Their field test was conducted using three techniques of interference mitigation, use of "Multiple-Input Multiple-Output (MIMO)," disabling of the sector, and Dynamic Spectrum Access Allocation (DSA) [15], [16]. The beamforming of MIMO has provided 15dB in reducing interference.…”

Section: Introductionmentioning

confidence: 99%

Evaluation of 5G Coexistence and Interference Signals in the C-Band Satellite Earth Station

Al-Jumaily

Sali

Jiménez

et al. 2022

IEEE Trans. Veh. Technol.

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Satellite Services (FSS) used to be alone at the C-Band spectrum in most countries. Since the deployment of 5G in many countries (i.e., 3.3 -3.6GHz), FSS is not the exclusive system in the C-Band anymore. In order to minimize the detrimental interference for the FSS to allowable levels, regional exclusion zones of maximum radiated power in 5G base stations (BS) are proposed and evaluated.ixed Satellite Services (FSS) used to be alone at the C-Band spectrum in most countries. Since the deployment of 5G in many countries (i.e., 3.3 -3.6GHz), FSS is not the exclusive system in the C-Band anymore. In order to minimize the detrimental interference for the FSS to allowable levels, regional exclusion zones of maximum radiated power in 5G base stations (BS) are proposed and evaluated.F In this paper, a measurement campaign has been carried out, and an analysis of the interference has been studied. A filtering model, namely Filter to Remove Broadband Interference 5G (FIREBRING), is proposed and analyzed concerning the carrier-to-noise ratio (C/N). Moreover, this paper focuses on the evaluation of the 5G interference into the FSS. The proposed solution deployed an Low-Noise Block (LNB) with a band frequency of 3.7 to 4.2GHz to test the satellite down-conversion signal at the receiver. The paper offered a complete analysis of the 5G signal, taking into account the implications of out-of-band emissions, potentially LNB saturation into FSS receiver, and the repercussions of the deployment of the 5G BS active antenna systems. With the LNB and down-converter in place, it can be found that the signal interference between 1.450GHz and 1.550GHz, is nearly 18dB.

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Radio Propagation in Terrestrial Broadcasting Television Systems: A Comprehensive Survey

Cited by 11 publications

References 179 publications

Investigative Assessment of the Impact of Perturbations on the Digital Terrestrial Television Broadcasting Signal

Investigative Assessment of the Impact of Perturbations on the Digital Terrestrial Television Broadcasting Signal

Quantitative Assessment of VHF and UHF Bands in Brazil After the Analog TV Switch-off

Evaluation of 5G Coexistence and Interference Signals in the C-Band Satellite Earth Station

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