Radio Propagation in Terrestrial Broadcasting Television Systems: A Comprehensive Survey (original) (raw)

Tutorial on digital terrestrial television broadcasting

2010 Fifth International Conference on Information and Automation for Sustainability, 2010

This tutorial presents an overview of digital terrestrial television broadcasting (DTTB), its evolution from analogue television to the second generation technologies. Main technologies that form the DTTB infrastructures and services are described in brief. Deployment of advanced coding and modulation techniques to achieve higher data rates and spectral efficiencies are described. A new concept in frequency spectrum management known as digital dividend is described. Implications and issues arising out of this re-allocation of television broadcast frequency band is outlined.

Digital Terrestrial Broadcasting Technologies and Implementation Status

Digital broadcasting has been an area of active research, development, innovation and business models development in recent years. This paper presents a survey on the characteristics of the digital terrestrial television broadcasting (DTTB) standards, and implementation status of DTTB worldwide showing the standards adopted. It is clear that only the developed countries and some in the developing ones shall be able to beat the ITU set analogue to digital broadcasting migration deadline because of the challenges that these countries faces in digitizing their terrestrial broadcasting. The challenges to keep on track the DTTB migration plan are also discussed in this paper. They include financial, technology gap, policies alignment with DTTB technology, etc. The reported performance comparisons for the different standards are also presented. The interesting part is that the results for many comparative studies depends to a large extent on the objective behind such studies, hence counter claims are common.

Review: Digital Video Broadcasting Terrestrial (DVB-T) and DVB-T2

Digital video broadcasting Terrestrial (DVB-T) is a leading international standard established for the move from Analog to digital broadcasting basically via terrestrial networks. Within DVB-T it is possible to carry defined data containers in addition to the audio and video in the MPEG 2 transport stream.Digital broadcast systems have increasingly been deployed for various services such as Digital Video Broadcasting (i.e. DVB-S, DVB-T, etc.) and Digital Audio Broadcasting (DAB). Classical digital broadcast systems were designed with fixed modulation techniques, which had to guarantee reliable communication even with very hostile channel environment. Video Broadcasting is playing a key role in communication areas. In this paper DVB-T (terrestrial based digital video broadcasting) and DVB-T2 is analyzed in terms of various parameters.

Performance Analysis of Digital Video Broadcasting - Second Generation Terrestrial (DVB-T2) Propagation for Fixed Reception in The Central Region of Malaysia

ELEKTRIKA- Journal of Electrical Engineering

Due to the increasing demand of services and content, Quality of Service (QoS) has become an important aspect in digital broadcasting industry especially with the implementation of Digital Terrestrial Television (DTT) in Malaysia. Thus, the performance of DVB-T2 in Malaysia should be investigated because there are areas which are not in the coverage due to variety of terrain, where some areas received weak DVB-T2 signals. Apart from geological and topographic factors in Malaysia, the selection of DVB-T2 parameters is also an important factor in determining signal strength and coverage This research has proposed to study the performance analysis of DVB-T2 propagation for fixed reception in Malaysia's central region. The Field Strength Measurement (FSM) was set up to evaluate the QoS of DVB-T2 signal such as Field Strength (E), Modulation Error Ratio (MER), and Carrier to Noise Ratio (C/N) at specific test points across Malaysia's central region. The FSM was simulated at the d...

A Survey of Digital Television Broadcast Transmission Techniques

IEEE Communications Surveys & Tutorials, 2000

This paper is a survey of the transmission techniques used in digital television (TV) standards worldwide. With the increase in the demand for High-Definition (HD) TV, videoon-demand and mobile TV services, there was a real need for more bandwidth-efficient, flawless and crisp video quality, which motivated the migration from analogue to digital broadcasting. In this paper we present a brief history of the development of TV and then we survey the transmission technology used in different digital terrestrial, satellite, cable and mobile TV standards in different parts of the world. First, we present the Digital Video Broadcasting standards developed in Europe for terrestrial (DVB-T/T2), for satellite (DVB-S/S2), for cable (DVB-C) and for hand-held transmission (DVB-H). We then describe the Advanced Television System Committee standards developed in the USA both for terrestrial (ATSC) and for hand-held transmission (ATSC-M/H). We continue by describing the Integrated Services Digital Broadcasting standards developed in Japan for Terrestrial (ISDB-T) and Satellite (ISDB-S) transmission and then present the International System for Digital Television (ISDTV), which was developed in Brazil by adopteding the ISDB-T physical layer architecture. Following the ISDTV, we describe the Digital Terrestrial television Multimedia Broadcast (DTMB) standard developed in China. Finally, as a design example, we highlight the physical layer implementation of the DVB-T2 standard.

Parametric comprehensive review and evaluation of digital TV broadcasting platforms and standards

Ain shams journal of electrical engineering (ASJEE), 2016

Now, at the beginning of the third millennium, the spread of digital systems and providing various facilities through it lead to bring the digital technology into the realm of telecommunications and the radio and television transmitters have changed from the analog systems to digital systems. In fact, the various advantages and capabilities of digital systems make the changes. Undoubtedly destroying the signal and weakening it through the path, because of the different sources of noises and environmental barriers on the one hand and the single purpose of the system and its lack of flexibility on the other hand, are the limitations of the analog systems. In digital systems, due to the use of zero and one logic, the possibility of changing the state was very low and by using methods of error correction (Hamming codes and cyclic redundancy check or CRC), these changes may be reversible. The signal received by the receiver, in terms of valuation, is very close to the transmitter and has high quality. This issue and many other features that will be discussed in the article has caused that in many countries, the broadcasting systems of radio and television transmitters convert from analog to digital.

Analysis of Signal Attenuation in Digital Terrestrial Television (DTTV) Broadcasting

European Journal of Electrical Engineering and Computer Science

This paper presents the prediction of signal attenuation Digital Terrestrial Television (DTTV) in Port Harcourt, Rivers State, Nigeria A signal Tracker (WS6916), Micronix Global Positioning System (GSP) module alongside a drive test was used to carry out the research work at Star times office, Olu-Obasanjo Road. The Power Density change with the varying distance between the receiver and the transmitter (Nobe B). For a more concise measurement, readings were taken between April and August 2019 (wet season) at different times of the day. The path loss exponent (n) of 4.7 reveals that Olu-Obasanjo road is an urban area. As the location changed, the path loss exponent (n) increased to 15.4, revealing the interference of tall buildings, and other forms of obstruction. The exponential shape of the graph shows a decaying signal along the distance axis with distance, expatiating that the inverse relationship between powers received (dbm) and distance (km). Attenuation was observed to have ...

Analysis of propagation models for digital terrestrial television (DTT), under the ISDB-Tb standard in cities of Ambato and Latacunga, Ecuador

Journal of Science and Research: Revista Ciencia e Investigación, 2018

Most countries in South America have adopted ISDB-Tb as a standard for Digital Terrestrial Television broadcasts. In some countries, the deployment is in the early stages. However, the unique conditions of the South American countries have not taken into account the selection of the propagation model used for the unbundling of new DTT networks. Ecuador has adopted the ISDB-Tb for DTT transitions, which optimizes the radio spectrum and implements new audiovisual and interactive services. At present, DTT signals are being tested in the cities of Ambato and Latacunga. For the successful implementation of DTT in the Andinos countries, it is necessary to select the propagation model that best suits the propagation conditions of the region. The present study determines the model of propagation that best adjusts to the conditions of propagation of the cities under study through eld measurements. The selection of cities is relevant in the sense that they have geographic and climatological c...