DVB-S2: Enhancing a Great Standard

Transcription

1 DVB-S2: Enhancing a Great Standard Thomas Wrede Chairman DVB-CM BSS Madrid, 12 March 2013

2 Agenda q Introduction and commercial background q How much enhancement? q Use cases q Market feedback q Next steps q Conclusions Slide 2

3 Introduction and commercial background q DVB-S2 standard (EN ) dates back to 2005 o Most advanced modulation and demodulation implementation at that time q Various use cases now demand even more spectrum efficient solutions from industry o Since 2011 proprietary DVB-S2 implementations started to appear q These new implementations considerably outperform the original DVB-S2 standard q A study mission performed by DVB-CM BSS and RCS analyzed these potential performance improvements Slide 3

4 How much enhancement? q Over 20% efficiency gain in a standard DTH satellite transponder q Even over 30% using wideband transponders and/or under high SNR conditions q Measurements using SES txp simulator: o Over 23% at 7.5 db SNR (in 33 MHz txp) o Confirmed by various tests over satellite Slide 4

5 Magic or science? q Efficiency enhancements over DVB-S2 based on o Increased granularity in MODCODs to better exploit the sweet spots o Higher order modulation schemes o Much tighter roll-off (down to 5%) o Eventually applying pre-distortion o Specific low SNR enhancements o Other wizardry Hence we refer to an evolutionary enhancement Slide 5

6 Naming convention q Discussions about the name for an enhanced DVB-S2 standard o Initially the extensions will be rather evolutionary o Potential for a revolutionary approach? q DVB decision to refer to DVB-S2 extensions (DVB-Sx throughout this presentation) q Final naming convention after completion of the enhanced standard? Slide 6

7 DVB-Sx performance overview 6.40$ 5.40$ Increased Granularity 64APSK 4.40$ 3.40$ Shannon Limit 2.40$ +27% +37% S2 Extensions 1.40$ 0.40$ *3$ Spectral Efficiency (bps/hz) *2$ *1$ 0$ 1$ 2$ 3$ C/N 4$ 5$ 6$ 7$ 8$ 9$ 10$ 11$ 12$ 13$ 14$ 15$ 16$ 17$ 18$ 19$ DVB- S2 DVB- S Slide 7

8 Uses cases q Applications that already triggered proprietary extensions: o Video contribution (SNG and fixed contribution) o Video distribution (to DTT towers and other headends) o IP trunking and backhauling o Government and defense applications o B2B VSAT networking (incl. metering and telemetry) q Growing market: video- & data services to mobile stations (trains, ships, aircrafts) q Consumer Broadband Internet Access (in Ku- and in wideband Ka- band transponders) Ultra HD: the potential mass market for DVB-Sx SoC Slide 8

9 Work items in the DVB q CM-BSS o Study Mission report (CM1297) by CM-BSS o Commercial Requirements (CM 1330) for DVB-Sx ü Efficiency increase: 15% (average) and 25-30% on specific measuring points ü No fundamental change to complexity and structure of DVB-S2 ü Harmonization with lower Es/No range of DVB-RCS2 ü Availability of DVB-Sx specification: end of September 2013 o Both endorsed by DVB Steering Board and basis for the work of TM-S2 q TM-S2 o Specification work in TM-S2 sub-group started o Call for Technologies (CfT) as a first step Slide 9

10 Market feedback (1) q From a survey on DVB-Sx (by Newtec): o Over 400 companies o More than 700 responses o Over 2 months time frame 10% 7% 14% 5% 10% 15-20% 28% 25%- 30% more 41% 62% will use DVB-Sx if it offers at least 15-20% efficiency gain Slide 10

11 Market feedback (2) Increase throughput in the same bandwidth 5% 15% 20% 40% Perform OPEX Savings by cuzing bandwidth Enable Higher Service Level Agreements Add more TV and radio channels to the available bandwidth Increase quality of TV channels inside the available bandwidth 7% 13% Add more services/customers to the available bandwidth 40% will increase their throughput in the same bandwidth Slide 11

12 Next steps q Call for Technologies: 10 responses received by February 11 th, 2013 o Very good proposals! o Focus now on MODCOD evaluations - More simulations required for a fair comparison o Additional considerations and evaluations - Roll-offs < 10% - Optimization of constellations - Simulation of very low SNR proposals - Hierarchical Constellations - ACM February 2013 April 2013 June 2013 September 2013 q CM-BSS and TM-S2 were tasked to prepare a study mission for an eventual revolutionary enhancement of DVB-S2 Slide 12

13 Conclusions q DVB-Sx will provide 20% to over 35% efficiency gain q DVB technology excellency based on relevant commercial requirements q Very high interest among operators and industry q First use cases in professional applications (DSNG, VSAT, distribution services,..) q Mass market driven by Ultra HD and Ka band consumer satellite internet Potential to become another successful DVB standard Slide 13

14 Thank You! Slide 14