Tutorial on digital terrestrial television broadcasting (original) (raw)

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.

A Review of Second Generation of Terrestrial Digital Video Broadcasting System

Network and Complex Systems, 2016

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 guarantee reliable communication even with very hostile channel environment. DVB-T2 terrestrial television standard is becoming increasingly important. The emergence of it is motivated by the higher spectral efficiency and adopting transition from analogue TV to DVB-T2, or transition from DVB-T to DVB-T2. It can reduce the transmission cost per program and deliver HD services economically viable. It introduces a new technique to improve performance in channels with frequency selective fading. If in addition improved source coding (MPEG-4) is employed, the gain in broadcast transmission is remarkable. Keywords: DVB-T, DVB-T2, Digital video broadcasting

WIB: a new system concept for digital terrestrial television (DTT)

IBC 2016 Conference, 2016

A new system concept for DTT, called "WiB", is presented, where potentially all frequencies within the Ultra High Frequency (UHF) band are used on all transmitter (TX) sites (i.e. reuse-1). Interference, especially from neighbouring transmitters operating on the same frequency and transmitting different information, is handled by a combination of a robust transmission mode, directional discrimination of the receiving antenna and interference cancellation methods. With this approach DTT may be transmitted as a single wideband signal, covering potentially the entire UHF band, from a single wideband transmitter per TX site. Thanks to a higher spectrum utilisation the approach allows for a dramatic reduction in fundamental power/cost and about 37-60% capacity increase for the same coverage as with current DTT. High speed mobile reception as well as fine granularity local services would also be supported, without loss of capacity. The paper also outlines further possible developments of WiB, e.g. doubling the capacity via cross-polar Multiple In Multiple Out (MIMO), backward-compatible with existing receiving antennas, and adding a second, WiB-mobile, Layer Division Multiplexing (LDM) layer within the same spectrum, either as mobile broadcast or as mobile broadband. Considering that Moore's law has been in action since the specification and implementation of DVB-T2 in 2009 and is expected to be in operation until the implementation of WiB sometime in the 2020's, the overall WiB receiver complexity does not appear to be overly complex.

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.

Analysis and Performance Comparison of DVB-T and DTMB Systems for Terrestrial Digital TV

Computing Research Repository, 2008

Orthogonal frequency-division multiplexing (OFDM) is the most popular transmission technology in digital terrestrial broadcasting (DTTB), adopted by many DTTB standards. In this paper, the bit error rate (BER) performance of two DTTB systems, namely cyclic prefix OFDM (CP-OFDM) based DVB-T and time domain synchronous OFDM (TDS-OFDM) based DTMB, is evaluated in different channel conditions. Spectrum utilization and power efficiency are

Overview of Digital Television Development Worldwide

Proceedings of the IEEE, 2006

This special issue of the PROCEEDINGS OF THE IEEE presents a systematical and complete tutorial on digital television (DTV), produced by a team of DTV experts worldwide. This introductory paper puts the current DTV systems into perspective and explains the historical background and different evolution paths that each system took. The main focus is on terrestrial DTV systems, but satellite and cable DTV are also covered, as well as several other emerging services.

DVB-T2: The Second Generation of Terrestrial Digital Video Broadcasting System

IEEE Transactions on Broadcasting, 2000

This paper provides a review of the second generation of Terrestrial Digital Video Broadcasting standard DVB-T2. DVB-T2 is the evolution of DVB-T and, together with DVB-S2 and DVB-C2, inaugurated a new transition from the first generation digital broadcasting systems, similar to the transition from analog to digital systems. In the paper the most relevant features of DVB-T2 are explained in detail, along with their benefits and trade-offs.

The Design and Performance Analysis of Digital Terrestrial Multimedia Broadcasting System

2016

Various standards have been developed for digital television broadcasting systems in the world. Consequently, Digital Terrestrial Multimedia Broadcasting (DTMB) is one of the digital television standards that is currently used by China and Hong Kong. DTMB standard consists of various configuration parameters that can be chosen for different applications. Therefore, DTMB system was designed in this research based on standard GB20600-2006 and was validated using computer program named Simulink. The parameters used for the design were FEC with code rate of 0.4, 4QAM mapping, interleaving mode 1 and single carrier mode. Those parameters were chosen based on low implementation complexity thus generates good results. The input for DTMB system was MPEG-2 audio and video Transport Stream (TS) structure. DTMB system consists of two important things such as the existence of FEC and TDS-OFDM. DTMB system uses concatenated codes in FEC. They are BCH as the outer codec and LDPC as the inner code...