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Finding the Key to High Efficiency Video Coding No. Issue 36 DVBSCENE December 2010 The Technology Update from DVB www.dvb.org Finding the Key to High Efficiency Video Coding Catherine Douillard looks at the Erik Stare reports on the launch DVB-T2’s popularity spreads to 04 Other Uses for DVB Standards advantages of rotated constellations of HD with DVB-T2 in Sweden Thailand 06 ASBU’s use of DVB-S2 07Transmitting IP Data & GSE 10DVB-CSA3 11Analysis 13DVB-C2 Plugfest 05 12 14 15Market Watch I AM MORE THAN A SET-TOP BOX I AM INNOVATION. BY ADB. Contact ADB: [email protected] ADB_DVBscene_A4_HYBRID_02_10.indd 1 17/2/10 11:17:04 Outstanding Achievement A Word From The DVB Project Office As I write these lines, I am more than a lot of market interest in DVB-C2, pleasantly surprised by the success of which strongly indicates that our latest DVB-T2. After the successful rollout cable standard will be as successful as its in the UK, Sweden has now officially elder siblings. The overwhelming market launched its own DVB-T2 HD services. acceptance of our second generation These will be soon followed by Finland. standards leads us to ask what will come Peter Siebert Outside of Europe, Sri Lanka will next? It seems as though there is always Executive Director leapfrog to DVB-T2 and other countries something coming up over the horizon like India and Kenya have released and requiring new specifications. What Efficiency Video Coding, or as it is known tenders for their T2 networks. could it be this time? In this issue of in its abbreviated form HEVC, will bring As Executive Director of the DVB DVB Scene you can read that a new video to DVB. Integrating the new video coding Project Office , I am proud of these coding standard is on its way. Like its standard into the DVB specifications achievements with DVB-T2, which predecessor H.264, it will increase the is just one example of the upcoming follows the success of DVB-S2, which video coding efficiency again by a factor activities in DVB. We will continue to be in Europe alone covers 10 million of two. For DVB, H.264 was the basis the place for innovation and development households. Furthermore, there is also for high definition. Let’s see what High of standards in the broadcast domain. PublishedbytheDVBProjectOffice, c/oEuropeanBroadcastingUnion, 17aAncienneRoute, New Standards CH-1218GrandSaconnex,Switzerland. TS102772Ver.1.1.1:SpecificationofMulti-ProtocolEncapsulation-inter-burstForwardErrorCorrection Editors:WilliamDaly,HaroldBergin (MPE-iFEC)(01/09/10) Editorial&Advertisingenquiriesto:WHDPR TS102992Ver.1.1.1:Structureandmodulationofoptionaltransmittersignatures(T2-TX-SIG)foruse Email:[email protected] withtheDVB-T2secondgenerationdigitalterrestrialtelevisionbroadcastingsystem(01/09/10) Telephone:+44(0)2077993100 TS102831Ver.1.1.1:Implementationguidelinesforasecondgenerationdigitalterrestrialtelevision broadcastingsystem(DVB-T2)(DVB-T2Implementationguidelines)(08/10/10) Allrightsreserved.Nopartofthispublication maybereproducedwithoutpriorconsentofthe publisher.Allcontentcorrectattimeofprinting. ©DVBSCENE2010. New Members Theviewsexpressedinthisnewsletterarethose oftheindividualDVBmembersorguestsand Institut National des Sciences Appliquées de Rennes (INSA)(AcademicPartner) -Oneof arenotnecessarilytheviewsoftheDVBProject anetworkoffiveelitepublicsectorengineeringschoolsinFrance. www.insa-rennes.fr OfficeorSteeringBoard. Funke Digital TV -Develops,producesandmarketsdigitalreceptionantennasolutions. DVB,theDVBlogomarks,MHPandtheMHPlogo www.funke.nl I AM MORE THAN A SET-TOP BOX areregisteredtrademarksoftheDVBProject. Certainotherproductnames,brandnames andcompanynamesmaybetrademarksor designationsoftheirrespectiveowners. I AM INNOVATION. BY ADB. ToobtainextracopiesofDVBSCENEplease contactWHDPR. PrintedbyLithmarkLimited. 7 - 9 March, Hotel Le Meridien Nice, France www.dvb.org www.mhp.org www.dvbworld.org www.dvbservices.com www.dvbworld.org TosubscribetoDVBSCENEfreeofchargevisit: www.dvb.org /subscribe Contact ADB: [email protected] DVB SCENE|December2010 3 ADB_DVBscene_A4_HYBRID_02_10.indd 1 17/2/10 11:17:04 Not Only For Broadcast Finding other uses for DVB standards Christophe Trolet required by this service and provide reliable analog systems anymore! quality at speeds of up to several hundreds In the same way, other digital standards of kilometers per hour and in hostile and developed for broadcasting have their noisy environments. own individual features, and can equally Historically, wireless transmission for establish themselves in the area of wireless ENG was first digitized in the early 2000s transmission. One could for example using the DVB-T standard as the basis. This employ aspects of the DVB-S2 transmission digital terrestrial broadcast standard, thanks standard to establish a high bitrate wireless to its resilience to echoes, at this time made link between two mobile terminals, if these types of links significantly more certain conditions were respected. Christophe Trolet, reliable and revolutionized the domain. It must be noted that if digitization Head of TeamCast Solutions As the technology developed, DVB-T is already well advanced in the ENG Christophe Trolet, an electronic receivers with ‘maximum ratio combining’ applications mentioned here, a good engineering graduate from Polytech (MRC) diversity inputs were put on the number of other areas, such as security, Nantes (France) joined TeamCast in 2003 market, catering for 2, 4 and 6 receiving defence, surveillance (of goods and people), as leader of advanced solutions for DTT antennas. These products pushed the limits telemetry, etc., remain today as potential and mobile TV. In 2010 he became head of the state of the art in terms of mobility customers for digital solutions with high of the newly formed TeamCast Solutions performance and improved reliability for capacity, which are reliable and robust even (for wireless transmission technologies the links. Thanks to the gains provided when mobile. and Test & Measurement). TeamCast in this way by the antenna diversity, the Using the standards defined by DVB Solutions provides suitable technologies for added dimensions in digital broadcast transmission constraints could be overcome is a card that has yet to be played in the applications around the world. and this enabled the bitrate used by vehicles competition for these new sectors in the for ENG systems to be increased. This marketplace. If digital modulation is well increase in payload capacity coupled with adapted to exploit the market for mobile Since 1993, the DVB organization has the associated gain in performance and wireless transmission, it is important to developed digital broadcast standards the progress in the development of H.264 make the selection between a single carrier for the different broadcast platforms - coding technologies, has also allowed high modulation like DVB-S2, a multi-carrier terrestrial, satellite and cable. definition to be used in these applications. modulation like DVB-T with its different Within the membership of DVB, the Today, of course, sports events are mainly characteristics, and upcoming applications professionals in the broadcast sector have the produced in high definition (Formula 1 with LTE and NGH technologies. In this opportunity to exchange their experiences racing, football matches, etc.) and in the way, we can see that DVB standards are not in the field together with practical problems domain of ENG, one cannot imagine using only for broadcast! encountered in particular environments. This sharing of experience enables the best technology solutions to be selected to form efficient digital broadcast standards. In this way, DVB-C and DVB-S became the reference standards for cable and satellite broadcasting, and DVB-T was established as the reference for terrestrial. The evolution of technology and electronic integration however, has allowed the further development of these standards, resulting in the second generation versions: DVB-C2; DVB-S2; DVB-T2. Although these standards are used mainly for cable, satellite and terrestrial broadcasts, they possess characteristics which can be exploited by other applications – in particular, in the area of audio and video wireless transmission for Electronic News Gathering (ENG). Certain existing digital standards are therefore able to support the bitrates 4 December2010|DVB SCENE Rotated Constellations A new diversity technique for DVB-T2 Catherine Douillard There is an easy way to identify a DVB-T2 and spatial diversity (e.g. Multi-antenna or transmitted signal. Just have a look at the MIMO systems). Catherine Douillard, transmitted constellation and observe Rotated constellations call for yet Professor, Electronics Department, that, unlike other DVB standards using another type of diversity, called signal space Telecom Bretagne Quadrature Amplitude Modulation diversity. When using conventional QAM (QAM), this constellation is rotated. constellations, each signal component, the whole binary content of the signal. In Rotated constellations have become a kind in-phase (I) or quadrature (Q), carries half of fact, every point in the constellation now has of trademark for DVB-T2. the binary information held in the signal. its own projections over the I component Thus, when a constellation signal is subject and the Q component. Next, the two What is the purpose of this new feature? to a fading event, I and Q components fade copies or projections of the signal are sent It is actually a spectrally efficient identically. In the case of severe fading, the separately in two different time
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