DVB‐S2X system performance results for broadcast and unicast broadband networks

Digital Video Broadcasting-Satellite-Second Generation (DVB-S2) has been specified about 10 years ago, with a strong focus on Direct-to-Home, but interactive broadband applications (forward link), digital satellite news gathering and other professional links such as internet trunking were included. Since then, new requirements have come up, including extended efficiency and flexibility in the core applications of DVB-S2, with specific focus on ultra-high-definition television delivery to the home, using High Efficiency Video Coding, the new video coding technique jointly developed by ITU and MPEG, and new ones for emerging markets. DVB-S2X provides the necessary technical specifications for covering traditional DVB-S2 use cases and new ones for operating at very low signal-to-noise ratio down to À10 dB, such as mobile services for business jets, fast trains and boats, and low aperture terminals for journalists. This paper and the others in this special issue describe the details of the standard and its performance in the various application scenarios.

Section: Modifications To the Physical Layermentioning

confidence: 99%

“…Angelone et al . report on DVB‐S2X system performance results for broadcast and unicast broadband networks. Alagha et al .…”

Section: Introductionmentioning

confidence: 99%

DVB‐S2X: extending DVB‐S2 flexibility for core markets and new applications

Morello

Mignone

2015

“…In , the potential system performance improvements that can be achieved by deploying the techniques available from DVB‐S2X in satellite broadcast and unicast broadband networks (VSAT scenario) are identified. It is shown that the combination of DVB‐S2X features offers significant advances and opportunities to service providers, particularly in emerging systems such as multi‐beam Ka‐band broadband as well as broadcasting satellite networks.…”

Section: The Special Issuementioning

confidence: 99%

DVB‐S2X: the new extensions to the second generation DVB satellite standard DVB‐S2

Morello

Mignone

2015

BACKGROUNDIn September 1993, the Digital Video Broadcasting (DVB) project was launched, with the purpose of promoting the switchover from analogue to digital television (TV) broadcasting. It was a private, market-driven association, including all the main actors in digital TV such as broadcasters, network operators, manufacturers and regulators.Thanks to the achievements in the field of digital VLSI technology, both in the transmission and in the source coding areas, the first milestone of the DVB project was the specification of DVB-S. This was DVB's digital, multi-programme, TV system for satellite broadcasting that together with the adoption of MPEG2, introduced satellite direct-to-home (DTH) digital TV.With the worldwide success of this system, it became clear that it could also be suitable for digital satellite news gathering (DSNG) applications, with significant advantages in cost, performance and flexibility over the previous systems. In the summer of 1997, the DVB Project decided to start the development of a new specification for DSNG, based on the DVB-S system but with a number of new features added to cover the commercial and operational requirements of contribution applications. At the same time, DVB-S became the basis of the so called 'DVB family', on which the first generation digital standards for cable (DVB-C) and terrestrial (DVB-T) broadcasting were built.In 2003, 10 years after the standardization of DVB-S, DVB-S2 [1] was the first physical layer system of a new generation of digital standards to be developed in the DVB family. It set the benchmark for technical excellence, drove the design concepts for terrestrial and cable applications and along with MPEG4, led the way for introduction of high-definition TV services. However, DVB-S2 was no longer only a system for DTH broadcasting, but one for interactivity (i.e. internet access) and professional services (e.g. TV contribution links and DSNG) as well. To be able to cover all the application areas, while still keeping the single-chip decoder at reasonable complexity levels, DVB-S2 was structured as a toolkit, thus enabling the use of mass market products for professional or niche applications.In 2013, 10 years after the development of DVB-S2, following a request by the Commercial and Technical Modules, the DVB-S2 group started to analyse a further evolution of satellite technologies to enhance performance in the core markets (DTH, contribution, Very Small Aperture Terminal (VSAT) and DSNG) and to increase the range of applications of the standard to cover emerging markets such as mobile (air, sea and rail) or professional applications. DVB-S2X: THE DVB-S2 EXTENSIONSThe DVB-S2X [2] is an extension of the DVB-S2 specification that provides additional technologies and features for the core applications of DVB-S2 including DTH, contribution, VSAT and DSNG. The specification also provides an extended operational range to cover emerging markets such as mobile applications.

“…From the system performance point of view, the detailed comparison between the DVB-S2 and the DVB-S2X standard is reported in [5].…”

Section: Introductionmentioning

confidence: 99%

DVB‐S2X physical layer performance results over realistic channel models

Cioni

Ginesi

2015

Self Cite

SUMMARYThe second-generation satellite digital video broadcasting (DVB-S2) standard has been recently reviewed with the aim of improving its spectral efficiency over a wide range of signal-to-noise ratios (SNRs). In this paper, three typical satellite channel configurations have been presented, which are associated with the three main DVB-S2 core markets: direct-to-home (DTH) broadcasting, broadband services, and distribution/contribution/high-speed IP links. This work is focused on the physical layer performance analysis of the new DVB-S2 extensions (DVB-S2X) waveform under realistic satellite channel models. Particular emphasis has been devoted to the maximization of the spectral efficiency as a function of the transmission symbol rate and in combination with the rolloff factor of the pulse-shaping filter, in the presence of state-of-the-art modulation and demodulation techniques.