Experimental characterization of a SFN digital broadcast channel

Guerra, Mauricio Vilela; Ron, Carlos V. Rodriguez; Mello, Luiz da Silva

doi:10.1109/latincom.2012.6506011

Cited by 5 publications

(18 citation statements)

References 2 publications

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“…In the same way, measurements of simulated and real channel characteristics in the digital video broadcasting-terrestrial (DVB-T2) system were presented in [10], [11]. Compared with the SISO mode presented in [1], where significant destructive spectral interference is translated to higher bit error rate (BER) values, in these two works the DVB-T2 advanced multiple-input singleoutput (MISO) transmission technique has been shown to be a primary contributing factor associated with the actual digital television (DTV) platforms that fulfill modern technical requirements, and which meet user and market demands for HDTV services.…”

Section: Channel Characteristics For Fixed and Portable Dtv Receptionmentioning

confidence: 99%

“…The measurement setup uses OFDM modulation in the ISDBT-T system to allow the evaluation of the RDS parameter by processing signals received from regular transmissions. Two transmitters, one at the peak of the Sumaré mountain and the other on the top of the Pena hill, were used to broadcast the same signal [1]. The parameters of the transmitted OFDM signal used in this particular experiment are shown in Table II.…”

Section: Measurement Campaignmentioning

confidence: 99%

“…In a previous paper [1], field measurements in a dual-site SFN network were reported, and initial results that were presented include the cumulative distribution of the path loss and average values of the average excess delay and root mean square (RMS) delay spread (RDS) measured with directional antennas. In this paper, the data collected in that experiment are further analyzed to provide the RDS and the Rician K-factor for portable reception with an omnidirectional antenna, and fixed reception with a directional antenna at the same 31 measurement points, as well as the Rician K-factor.…”

Section: Introductionmentioning

confidence: 99%

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Channel Characteristics for Fixed and Portable DTV Reception in a Single Frequency Network

Guerra

Filho

Ron

et al. 2019

J. Microw. Optoelectron. Electromagn. Appl.

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This paper presents the propagation channel characteristics of a digital TV single-frequency network (SFN) obtained by carrying out field measurements using two synchronized transmitters. The measurements are performed at 31 reception points using both a directive reception antenna, which is typical of fixed reception scenarios, and an omnidirectional antenna, which is used to receive mobile signals. The characteristic parameters of the channel are obtained, including the average delay, the root mean square (RMS) delay spread, and the Rician K-factor, which are important for the design of SFN systems. An empirical expression is obtained for the prediction of the RMS delay spread as a function of the K factor and the distances to the transmission antennas.

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Section: Channel Characteristics For Fixed and Portable Dtv Receptionmentioning

confidence: 99%

Section: Measurement Campaignmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Channel Characteristics for Fixed and Portable DTV Reception in a Single Frequency Network

Guerra

Filho

Ron

et al. 2019

J. Microw. Optoelectron. Electromagn. Appl.

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“…As presented in the measurement campaign carried out in a suburban SFN network with two synchronized transmitters (Guerra, 2012), considering mobile applications of the Brazilian DTV standard, the mode 1 guard interval provides a suitable guard interval length of 15.75 μs. Given that for the system the decrease of the guard interval is one of the ways to obtain an additional gain of information in number of bits, the measured data proved an extra transmission capacity of 4.04 μs, which can be translated in terms ENGENHARIAS of a decrease for the required minimum guard interval length and the potential increase of spectral efficiency in the system (Takada, 2006).…”

Section: Introductionmentioning

confidence: 99%

A Bibliographic review of wideband DTV networks using transmission diversity techniques

Guerra

Nóbrega²

2020

Projectus

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Este artigo apresenta resultados do espalhamento de retardo, fornecendo em primeira mão uma revisão bibliográfica completa aplicada à Televisão Digital Terrestre utilizada em esquemas de transmissão distribuída. Um levantamento da situação atual do desenvolvimento da pesquisa é obtido a partir de uma possível tendência recomendada por uma campanha de medição realizada em uma rede de frequência única urbana com dois transmissores sincronizados. A discussão de possíveis questões relacionadas às condições de recepção é considerada e a constante necessidade de atender aos requisitos técnicos modernos, como eficiência espectral e flexibilidade do sistema, também é abordada. Resultados teóricos, de simulação computacional, experimentais e de ensaios de campo são apresentados neste artigo, confirmando as melhorias associadas às redes de diversidade de fontes.

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“…The SFN channel was determined by finding the path loss gain by analyzing and evaluating the effects of the multipath channel. In [4], the authors studied and investigated the SFN gain from real broadcast measurements.…”

Section: Introductionmentioning

confidence: 99%

Empirical single frequency network threshold for DVB-T2 based on laboratory experiments

Ruckveratham¹,

Promwong²

2019

Turk J Elec Eng & Comp Sci

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DVB-T2 broadcasting with a single frequency network (SFN) allows an efficient management of frequency utilization and extends the coverage area, which will enable more people to view a broadcast. The SFN mode also increases the concentration of the signal in overlap areas. However, some difference of overlap areas in actual use of SFN networks may have some degradation of the received signal due to the effect of the SFN. In this research, we analyze SFN broadcasting in SISO mode. This paper represents the effects of delays on the SFN signal over different delay times within the guard interval (GI) by analyzing the minimum reception threshold. The analysis of received signal power, MER, bBER, LBER, and noise margin are studied using an actual digital television transmitter for the experiment. The results show that the minimum thresholds for a delay time at 0 microseconds will require higher receive signal power than other delay times within the GI. The results of this experiment are useful in designing the SFN network and make it possible to determine the appropriate C/N threshold for the design of the digital terrestrial television network.

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Experimental characterization of a SFN digital broadcast channel

Cited by 5 publications

References 2 publications

Channel Characteristics for Fixed and Portable DTV Reception in a Single Frequency Network

Channel Characteristics for Fixed and Portable DTV Reception in a Single Frequency Network

A Bibliographic review of wideband DTV networks using transmission diversity techniques

Empirical single frequency network threshold for DVB-T2 based on laboratory experiments

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