Management of Digital Video Broadcasting Services in Open Delivery Platforms

The future of Digital Video Broadcasting (DVB) is moving towards solutions offering an efficient way of carrying interactive IP multimedia services over digital terrestrial broadcasting networks to handheld terminals. One of the most promising technologies is Digital Video Broadcasting-Handheld (DVB-H), at present under standardisation. Services deployed via this type of DVB technologies should enjoy reliability comparable to TV services and high quality standards. However, the market at present does not provide effective and economical solutions for the deployment of such services over multi-domain IP networks, due to their high level of unreliability. This paper focuses on service management, service level agreement (SLA) and network performance requirements of DVB-H services. Experimental results are presented concerning QoS sensitivity to network performance of DVB-H services delivered over a multi-domain IP network. Moreover, a solution for efficient and cost effective service management via QoS monitoring and control and network SLA design is proposed. The solution gives DVB-H operators the possibility of fully managing service QoS without being tied to third party operators

Single Frequency Networks (SFN) in Digital Terrestrial Broadcasting

The paper deals with principles and properties of single frequency networks of digital television and radio transmitters. Basic definitions and contextual relationships (guard interval, area of SFN, influence of used modulation parameters etc.) are explained

Emulation of a dynamic broadcasting network with adaptive radiated power in a real scenario

Broadcasting networks are an efficient means for delivering media content to a high density of users, because their operational cost is almost independent of the size of their audience for a given coverage area. However, when the propagation conditions are better than the worst-case design, the energy efficiency is suboptimal. In this paper, we present the results of a trial to emulate the performance of a dynamic broadcasting network with adaptive radiated power in a real broadcasting scenario. We assess the radiated power of the broadcasting network in a Cuban environment by means of a monitoring device. The power consumption of the dynamic broadcasting network with adaptive radiated power is assessed and compared with traditional broadcasting for different implementation margins. To emulate the performance of the dynamic broadcasting network with adaptive radiated power, we consider a commercial Digital Terrestrial Multimedia Broadcast (DTMB) transmitter in Havana, Cuba. Testbed hardware is designed and developed to measure the fading with a commercial receiver and emulate the signal reception under adaptive power conditions. The dynamic broadcasting network performance is assessed following the general guidelines and techniques for the evaluation of digital terrestrial television broadcasting systems recommended in the ITU-R BT. 2035-2 report

Time Frequency Slicing for Future Digital Terrestrial Broadcasting Networks

“© © 20xx IEEE. Personal use of this material is permitted. Permission from IEEE must be obtained for all other uses, in any current or future media, including reprinting/republishing this material for advertising or promotional purposes, creating new collective works, for resale or redistribution to servers or lists, or reuse of any copyrighted component of this work in other works.”Time Frequency Slicing (TFS) is a novel transmission technique for the future of terrestrial broadcasting. TFS breaks with the traditional transmission of TV services over single RF channels.With TFS, services are distributed across several channels by frequency hopping and time-slicing. The bundling of several RF channels into a TFS multiplex provides important advantages. A capacity gain is obtained due to a more efficient statistical multiplexing of video content since more services can be encoded in parallel. Improved frequency diversity also provides a coverage gain since signal imbalances between RF channels can be smoothed. Enhanced robustness against static and time varying interferences can also be achieved. TFS was described, although not implemented, for DVB-T2 and was fully adopted in DVB-NGH. At present, it is proposed for a future evolution of DVB-T2 and will also be considered in the ongoing ATSC 3.0 standard. This paper investigates the potential advantages of TFS by means of field measurements as well as simulations and discusses practical implementation aspects and requirements regarding transmission and reception. Results demonstrate the interesting advantages of TFS to improve both coverage and spectral efficiency, which addresses the future necessity of a more efficient DTT spectrum usage.Gimenez Gandia, JJ.; Stare, E.; Bergsmark, S.; Gómez Barquero, D. (2014). Time Frequency Slicing for Future Digital Terrestrial Broadcasting Networks. IEEE Transactions on Broadcasting. 60(2):227-238. doi:10.1109/TBC.2014.2315766S22723860

Vectorial characterization of DVB-T propagation channel - Application to radio-Mobile communications : the CAVITE Project

International audienceIn this paper, the whole project CAVITE is described. This project is proposed within the framework of sets of themes around "Sciences and Technologies of Information and Communication" for radio-mobile digital communication in order to increase the data rate or quality of transmission. One of the objectives is the reception of Digital Video Broadcasting on Terrestrial networks (DVB T) in vehicular condition (car, train ...)

Interference Analysis Between Digital Terrestrial Television (DTT) and 4G LTE Mobile Networks in the Digital Dividend Bands

With the introduction of digital terrestrial television (DTT) and the analogue television switch-off, terrestrial broadcast spectrum in the UHF band is being released for mobile communications, in particular for fourth generation (4G) long term evolution (LTE) mobile services. This spectrum is known as digital dividend. An impending problem when deploying 4G LTE mobile networks in the digital dividend bands is that interferences may appear in the adjacent radio frequency channels used for DTT. In this paper, we analyze the adjacent coexistence of DTT and 4G LTE networks in the digital dividend bands at 700 MHz and 800 MHz. A generic framework is adopted such that results can be easily extrapolated to different scenarios and bands. Results are presented as a function of the guard band between technologies, for both LTE uplink and downlink adjacent to the DTT signals, and for fixed outdoor and portable indoor DTT reception. Also, the effect of using anti-LTE filters is studied.This work was supported by the Spectrum Regulator of Colombia ANE (Agencia Nacional del Espectro).Ribadeneira Ramírez, JA.; Martínez, G.; Gómez Barquero, D.; Cardona, N. (2016). Interference Analysis Between Digital Terrestrial Television (DTT) and 4G LTE Mobile Networks in the Digital Dividend Bands. IEEE Transactions on Broadcasting. 62(1):24-34. doi:10.1109/TBC.2015.2492465S243462

[MT] Recent amendments to the Broadcasting Act

Following consultations with the Malta Communications Authority and the Office of the Attorney General, the Broadcasting Authority has proposed that the Government amend one provision in the Broadcasting Act, Chapter 350 of the Laws of Malta, namely article 16B which deals with digital radio. The reasons and objectives of this proposed amendment is to widen the scope of article 16B of the Broadcasting Act to empower the Broadcasting Authority to license broadcasting content not only on digital radio but also on other electronic communications networks that provide broadcasting content such as the cable network, digital terrestrial television stations and non-linear audiovisual media services.peer-reviewe

Simulation model for digital broadcasting technologies efficiency estimation

Digitalizacija zemaljskog emitovanja televizijskih programa prva je velika promena u TV sistemima još od uvoĊenja kolor televizije. Prelazak sa analognog na digitalno emitovanje predstavlja jedan od najvećih izazova u razvoju video i audio tehnologije i desiće se u celom svetu u veoma bliskoj budućnosti. Pored ozbiljnih tehniĉkih zahvata, ovaj proces zahteva znaĉajne finansijske investicije vezane za enorman broj standardnih TV prijemnika i široko rasprostranjene televizijske mreţe. Zbog toga, gde god je moguće u distributivnoj mreţi, potrebno je obezbediti kompatibilnost sa postojećim sistemima. Nasuprot tome, digitalizacija video signala visoke rezolucije zahteva visoko sofisticirane algoritme sa velikom kompresijom i veoma efikasnom tehnologijom prenosa. Trenutno u svetu koriste se tri meĊunarodna standarda za digitalno zemaljsko emitovanje TV programa - Advanced Television Systems Committee (ATSC) u upotrebi u Severnoj Americi i Juţnoj Koreji, Digital Video Broadcasting Terrestrial (DVB-T) pored Evrope upotrebljava se u Australiji, Indiji i nekim zemljama Azije i Afrike, Integrated Services Digital Broadcasting Terrestrial (ISDB-T), koristi se u Japanu i Juţnoj Americi. Fokus ove disertacije je na analizi performansi i razvoju metoda za procenu efikasnosti tehnologija za fiksni prijem koje se koriste u Evropi. Za isporuku TV servisa krajnjim korisnicima postoje tri glavna sistema prenosa, satelitski, kablovski i preko zemaljskih predajnika. Digitalni zemaljski sistem je sposoban za isporuku TV programa ĉak i mobilnim korisnicima. Servisi prenosa podataka i televizije visoke rezolucije (HD) raspoloţivi su preko digitalnih satelitskih i kablovskih mreţa, ali sve do sada korisnici zemaljskih mreţa nisu primali ove servise jer je za njihov prenos potreban veći kapacitet kanala u odnosu na onaj korišćen za televiziju standardne rezolucije (SD) - Digital Video Broadcasting Terrestrial (DVB-T) i Moving Picture Expert Group MPEG-2 standard kompresije. Novije tehnologije, kao što su standard kompresije MPEG-4 verzija 10 i druga generacija standarda za zemaljsko emitovanje (DVB-T2), obezbeĊuju povećan kapacitet i robusnost u zemaljskim mreţama. MeĊutim, pored tehniĉkih prednosti evidentno je da najnovije tehnologije sa sobom donose i više cene opreme i sistema. Sprovodljivost poslovnog plana uvoĊenja digitalnog emitovanja je pod direktnim uticajem ovih tehno-ekonomskih pitanja.The first major change within the TV system since the introduction of color is the digitalization of television terrestrial broadcast network. The digital switchover is one of the main challenges in video and audio technology developments and it is going to happen in the very near future throughout the world. Besides the severe technical requirements, this process is driven by significant financial investments, regarding to an enormous number of standard TV sets and widespread broadcast networks. Consequently, it is necessary, wherever is possible in distribution network, to ensure the compatibility with existing systems. On the contrary, digitization of high-resolution video and audio signals needs highly sophisticated algorithms with high compression and very efficient transmission technology. There are three international standards currently used world-wide for digital terrestrial broadcasting - Advanced Television Systems Committee (ATSC) used in North America and South Korea, Digital Video Broadcasting Terrestrial (DVB-T) used apart from Europe in Australia, India and some other Asian and African countries, Integrated Services Digital Broadcasting Terrestrial (ISDB-T), used in Japan and South America. The focus of this dissertation is the performance analysis and efficiency estimation method applied to the technologies for fixed reception used in our region – Europe. The three main transmission systems for delivering TV service to end-users are satellite, cable and terrestrial networks. The digital terrestrial television (DTT) system is capable of distribution of television content even to the mobile devices. Data-casting services and high-definition (HD) television content is available via digital satellite and digital cable networks but, until now, terrestrial users have not received data and HD content because its transmission requires a higher channel capacity than that used for standard definition (SD) TV - Digital Video Broadcasting Terrestrial (DVB-T) and Moving Picture Expert Group MPEG-2 coding and compression standard. The latest technologies, like compression standard MPEG-4 part 10 and the second generation of digital terrestrial broadcasting standard (DVB-T2), provide increased capacity and ruggedness in the terrestrial transmission networks. But besides technical benefits it is evident that the latest technologies bring also a higher system cost. The viability of digital broadcasting business case is directly influenced by this techno-economic issue

DVB-NGH: the Next Generation of Digital Broadcast Services to Handheld Devices

This paper reviews the main technical solutions adopted by the next-generation mobile broadcasting standard DVB-NGH, the handheld evolution of the second-generation digital terrestrial TV standard DVB-T2. The main new technical elements introduced with respect to DVB-T2 are: layered video coding with multiple physical layer pipes, time-frequency slicing, full support of an IP transport layer with a dedicated protocol stack, header compression mechanisms for both IP and MPEG-2 TS packets, new low-density parity check coding rates for the data path (down to 1/5), nonuniform constellations for 64 Quadrature Amplitude Modulation (QAM) and 256QAM, 4-D rotated constellations for Quadrature Phase Shift Keying (QPSK), improved time interleaving in terms of zapping time, end-to-end latency and memory consumption, improved physical layer signaling in terms of robustness, capacity and overhead, a novel distributed multiple input single output transmit diversity scheme for single-frequency networks (SFNs), and efficient provisioning of local content in SFNs. All these technological solutions, together with the high performance of DVB-T2, make DVB-NGH a real next-generation mobile multimedia broadcasting technology. In fact, DVB-NGH can be regarded the first third-generation broadcasting system because it allows for the possibility of using multiple input multiple output antenna schemes to overcome the Shannon limit of single antenna wireless communications. Furthermore, DVB-NGH also allows the deployment of an optional satellite component forming a hybrid terrestrial-satellite network topology to improve the coverage in rural areas where the installation of terrestrial networks could be uneconomical.Gómez Barquero, D.; Douillard, C.; Moss, P.; Mignone, V. (2014). DVB-NGH: the Next Generation of Digital Broadcast Services to Handheld Devices. IEEE Transactions on Broadcasting. 60(2):246-257. doi:10.1109/TBC.2014.2313073S24625760