A Survey of Digital Television Broadcast Transmission Techniques

Abstract

Abstract-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.

Picture-Based Multiple-AntennaTechnique for the DVB-T2 Receiver

“…HERE are many standards of digital terrestrial television (DTT) broadcasting technology [1], one of which is DVB-T2 [2]. This standard applies OFDM (orthogonal frequency division multiplexing) modulation, which is also used by DVB-T and ISDB-T (Integrated Service Digital Broadcasting -Terrestrial) standards [1].…”

“…This standard applies OFDM (orthogonal frequency division multiplexing) modulation, which is also used by DVB-T and ISDB-T (Integrated Service Digital Broadcasting -Terrestrial) standards [1]. Several countries have adopted DVB-T2 and migrate from analog one to it.…”

The Design and Performance Analysis of DTMB System

“…In 1997, Japan developed standard for digital television broadcasting named of Integrated Services Digital Broadcasting (ISDB). ISDB has two standards, one for terrestrial (ISDB-T) and other for satellite (ISDB-S) transmission [1]. Korean also developed standard for digital television broadcasting in 2005.…”

“…This standard is known as Digital Multimedia Broadcasting (DMB) [2]. In 2006, Chinese developed standard for broadcasting system known as Digital Terrestrial Multimedia Broadcasting (DTMB) [1].…”

“…It can improve the efficiency of bandwidth and the signal is able to propagate against the impact of propagation. In receiving side, FEC codes are able to detect error and correct it without retransmission system [1]. FEC codes used in the broadcasting system is divided into two parts, outer and inner coding.…”