Agenda. ESA R&D Overview DVB-RCS background ESA R&D activities on DVB-RCS Conclusions

Transcription

1 D. Mignolo EUI-TM 1

2 Agenda ESA R&D Overview DVB-RCS background ESA R&D activities on DVB-RCS Conclusions 2

3 ESA R&D Overview (1/3) ESA's aim in the satellite communications field is to contribute to the competitiveness of the European and Canadian private sector by providing a lead in research and development (R&D) activities and by forging partnerships within the industry ESA R&D activity in satellite communications is developed under different Elements of ARTES (Advanced Research in Telecommunications Systems) and TRP (Technology Research Program) Programmes Participation to ESA Telecom is open to all firms residing within the member states participating in the ARTES element concerned ESA funds (100%) projects in the early stages of innovative technologies development where there is a perceived high commercial and/or technical risk. ESA partly funds (up to 50%) projects related to the integration and demonstration of activities based on existing technologies that are tailored to pre-operational products, systems and applications with identified market opportunities. 3

4 ESA R&D Overview (2/3) The ARTES Program is structured into different Elements : Programme development - constitutes the strategy component of ESA Telecommunications programme lines. It identifies and evaluates opportunities, future systems and concepts within the space and terrestrial telecommunications markets. Technology- focuses on the consolidation of new system concepts and the development of advanced equipment, subsystems and satellite payloads. User Segment - promotes near-to-market development activitiesin the area of satellite communications that have a direct impact on the user community. User Terminals and Applications are the two main lines of development. Multimedia Systems - to develop and launch complete state-of-the-art interactive multimedia satellite systems services to meet future market needs. Mobility working to shape the future of advanced mobile satellite services. Large Platform mission - development of the large European telecommunications platform based on state-of-the-art equipment from world-class suppliers. In Orbit demonstration - enables European and Canadian industry to demonstrate new payload and platform components in orbit. Inter Satellite Link Demonstrations - enable several linked satellites to work as one, increasing their effectiveness and the size of their terrestrial coverage 4

5 ESA R&D Overview (3/3) ARTES 5 ARTES 3 ARTES 1 ARTES 4 Study Development Demo Market Dev. Content Dev. Deployment Op. Service Commercial Maturity (Time) 5

6 ESA and DVB-RCS: Background ESA played a key role in the definition of the DVB-RCS standard since its initial stages and actively supports the development of DVB-RCS in the following areas: DVB-RCS standardization Technology R&D System R&D Application development Pilot projects 6

7 DVB-RCS standardization ESA has driven the standardization effort in DVB-RCS as a recognized independent and skilled organization Chairing the Standardization Group: Prof. Stette Leading the RSAT Ad Hoc Group on the implementation of DVB-RCS for On Board Processing technology suitable for meshed connectivity Contributing to the standard and guidelines Ensuring Liaison with ESA funded programs 7

8 DVB-S2/RCS Standardization ESA played a pivotal role in the DVB-S2 standardization: FEC proposal with industry that was runner up to the HNS winner Proposal for 16/32-APSK optimized constellations and physical layer scrambling Promoted the introduction and engineering of ACM Made a major effort in DVB-S2 standard validation through simulations and system analysis and showed possible demodulator implementation including synch sub-system Heavily supported the DVB-S2 guidelines preparation Supported the DVB-S2 introduction in DVB-RCS Supporting DVB-S2/RCS system validation at industrial level 8

9 DVB-GBS Standardization ESA is leading the DVB-GBS IP encapsulation over GS/DVB-S2 working group : Definition of an efficient IP over DVB-S2 Generic Stream Encapsulation protocol ESA has been promoting the standardization process, by hosting working group meetings and building up a joint contribution from satellite key players in support of the standardization activity Internal work is being carried out to actively contribute to the encapsulation protocol definition 9

10 SatLabs Group ESA fostered the creation of the SatLabs Group and is leading its tasks Ensure interoperability between DVB-RCS terminals and systems Achieve low-cost implementations of DVB-RCS products ESA is chairing the SatLabs Group ESA leads most working groups and actively participates in the technical tasks directly or through funded studies Key developments for the implementation of interoperability verification are carried out by ESA Common Test Bed for interoperability testing ESA funds through ARTES lines key technological developments needed to reduce DVB-RCS cost Low cost Components Low cost installation mechanisms 10

11 DVB-RCS Technology R&D The Technology R&D is executed in the framework of ARTES program. The main objectives are the development of systems and elements and the reduction of costs by: Supporting Industry system developments Prototype Indoor and Outdoor Units Gateway, HUB, Network Control Centre Fully validated End to End systems Developing low cost and advanced components for User Terminals RCS MAC & PHY chipset, Frequency up converters, Ka- and Ku-band power amplifier and line-up MMICs, IDU analogue transmit chain electronics, MF- TDMA modulator/demodulator Developing advanced satellite payloads OBP communication system (AmerHis, adaptive DVB-RCS/DVB-S2for meshed etc..), On Board Antenna System, thermal system, multi-beam access payloads, advanced payload architecture etc.. 11

12 DVB-RCS System R&D The System R&D is executed in the framework of ARTES and TRP programs. The main objectives are: Support of new features: Introduction of ACM in the forward and in the return link Enhanced random access channel Enhanced IP-friendly encapsulation Meshed connectivity, study to support Broadband Mobile services, security Improving System Performances Resource and Q.o.S management, protocol and signaling (C2P, AFM etc..), enhanced synchronization, optimized management and control planes, active support to DVB-S2 definition Providing System Validation System validation tools, system Benchmarking, demonstration support, terminal performance assessment 12

13 ESA R&D Examples (1) System and Networking Adaptive Coding-Modulation Techniques for Ka/Q-band Systems: TRP (300K) Protocols and Signalling for Adaptive Fade Mitigation Techniques (FMT) in DVB-RCS Multibeam Systems: ARTES-1 (250K) System and Payload Co-design using ACM schemes: ARTES-1 (450K) Adaptive DVB-RCS/DVB-S2 OBP for Broadband Meshed Communications: ARTES-4 (2600K) Study of DVB-S2/DVB-RCS Broadband Mobile Systems: ARTES-1 (200K) DVB-RCS Benchmarking: ARTES-1 (200K) Resources Management using Adaptive Fade Mitigation Techniques (FMT) in DVB-RCS Multi-Beam Systems: ARTES-1 (400K) Harmonized Control and Management Planes for DVB-RCS Systems: ARTES-1 (150K) 13

14 ESA R&D Examples (2) Physical Layer Joint Turbo Decoding and Carrier Synchronization: ARTES-5 (300K) Novel Intra-System Interference Mitigation Techniques and Technologies for Next Generation Broadband Satellite Systems: ARTES-1 (500 K) Study of Enhanced Digital Transmission Techniques for Broadband Satellite Digital Transmissions: TRP (400K) 14

15 ESA R&D Examples (3) Modem Prototyping/ Standard Verification Adaptive Coding and Modulation Modem for Broadband Communications : ARTES-5 (800K) Advanced modem prototype for interactive satellite terminals: ARTES-5 (1200K) Modem for High Order Modulation Schemes: TRP (1700K) High Rate Digital Modem: ARTES 5 (820K) Study on the Impact of DVB-S2 onto the cost of DVB-RCS Terminals: ARTES 1 (200K) DVB-S2 Satellite Experiment: ARTES 5 (1400K) 15

16 Applications Applications are the bridge between the End User and the DVB- RCS technology ESA has developed and integrated DVB-RCS HW/SW elements and contents under ARTES program in order to generate new applications with commercial potential, and addressing the capability to provide the applications in an Operational Context Supporting provision of Broadband Access Services through PILOT projects: All activities involve a user community through a pre-operational phase of actual utilisation of the system (e.g. Broadband in the Sky, Pacific Skies, Host, Inspire) Developing Applications suitable for DVB-RCS broadband access services Telemedicine Teleducation Secure access Egovernment Infomobility B2B 16

17 Application Pilots examples - Host 2 way Internet satellite access over Hellassat 2 satellite Opportunity for the Greek satellite operator to extend its portfolio with new services for residential users and corporate business for the region, not connected to broadband Pilot Operations during 12 months 5 different pilot applications to show the capabilities of DVB-RCS network More than 30 terminals installed on the field Start of pilot operations on December

18 AP Examples - Pacific Skies Premium Internet Access and Corporate Services Product in Asia and Middle East New developments on the DVB-RCS platform: - Techniques to mitigate the attenuation on Ku band due to high rainfall - DVB-RCS network synchronisation for multi-beam (cross-strap) satellite systems 18

19 AP Examples - Broadband in The Sky Shared two way DVB-RCS IP satellite communication platform operated by Belgacom: Backbone IP connection provided by Belgacom low operational costs for service providers attractive IP services for the end users (transparency with respect to terrestrial IP and compatibility with one way solutions as Content Delivery services) Implementation of different SLA: From the Satellite Operator to the ISPs and from ISP s to their users, configurable by each ISP Pilot with 17 sites: Belgium (test), Algeria, Azerbaijan and Turkey Internet Providers can extend their offer to areas with limited terrestrial broadband connectivity 19

20 Budget evolution DVB-RCS R&D ESA R&D Funding (MEur) ARTES 5 ARTES 4 ARTES 3 ARTES

21 Budget for DVB-RCS R&D ESA R&D Funding (MEur) ARTES 1 ARTES 3 ARTES 4 ARTES 5 21

22 ESA R&D funding ESA has made a sustained investment in DVB- RCS technology development since 2001 Industry-driven activities: Most DVB-RCS R&D activities and budget correspond to cofunded activities proposed by Industry, which contributes with 50% of the expenditures Activities initially aimed at system product developments Evolution along time into: System / Product enhancements and optimizations (e.g. low cost) Optimized components, equipment and supporting technologies Applications development and demonstration Pilot projects ESA-driven activities: Studies and developments in support of standardization Common Test Bed for interoperability testing Analysis and experimentation of possible future optimizations, new techniques / technologies and novel architectures 22

23 Summary and Conclusions ESA has supported since the beginning the development of DVB-RCS as the worldwide open standard for two way broadband communication via satellite Support to standardization groups R&D activities ESA s R&D instruments are used to provide a strong support for DVB-RCS development and evolution Industry-driven initiatives mainly aimed at product developments or pre-operational pilot projects ESA-driven initiatives to develop long-term technological improvements 23

24 Thank you!!!! 24

25 Annex: ESA DVB-RCS activities detailed 25

26 Adaptive Coding-Modulation Techniques for Ka/Q-band Systems (2 parallel contracts: Space Engineering, Politecnico di Milano, Alenia Spazio and University of Bologna; Onera, ASP, Tesa, Silicom) System study for introducing ACM techniques in broadband point-to-point systems Characterization of the satellite propagation channel Definition of system study cases, including an access and a backbone scenario Analysis and optimization of ACM techniques, including physical layer adaptation, power control, predistortion, synchronization and channel estimation Development of an end-to-end system/physical layer simulator including traffic generators, propagation channel models, interference characterization, frame format, ACM techniques, signalling, Assessment of ACM algorithms performance at system and physical layer level 26

27 Protocols and Signalling for Adaptive Fade Mitigation Techniques (FMT) in DVB-RCS Multibeam Systems (2 parallel contracts: EADS Astrium and Space Engineering; Audens ACT and TriaGnoSys) System study dedicated to DVB-S2/DVB-RCS broadband systems utilizing FMTs (ACM, power control and DRA) Study of optimum combination of FMTs in several different system study cases Assessment of capacity/availability gain and sensitivity analysis to key system parameters Study of scheduling and resource allocation algorithms suitable for adaptive systems Development of a comprehensive system simulator, including propagation channel models, traffic models and physical layer adaptation techniques Investigation of backward compatible ways to implement FMTs according to the DVB- RCS standard and identification of possible required modifications 27

28 System and Payload Co-design using ACM schemes (ITT closed in June 2005) Study of techniques to jointly optimize system and payload parameters for achieving the required system performances by minimizing system cost System scenario definition and identification of the antenna/payload configurations to be studied System/antenna/payload constraints consolidation Optimization parameters identification and definition of figures of merit to be maximized System and subsystem models definition and elaboration Optimization methodology definition Optimization methodology implementation in a co-design software tool Identification of new technologies with a high potential Assessment of the impact at system and payload level of the utilization of adaptive DVB-S2/RCS physical layer in regenerative systems 28

29 Adaptive DVB-RCS/DVB-S2 OBP for Broadband Meshed Communications (Alcatel Espacio SES Global University of Catalonia University Of Cantabria Verisat) Advanced laboratory demonstrator and system study for an adaptive OBP with DVB-S2 ACM in the downlink and rate adaptive DVB-RCS in the up-link Study and develop demodulation and decoding algorithms for DVB- S2 ACM Implement VHDL Key OBP algorithms Develop channel simulator Develop Adaptive Switching Algorithms 29

30 Study of DVB-S2/DVB-RCS Broadband Mobile Systems (New ITT: closing date 29/9/2005) Develop and analyze techniques for adapting existing standards designed for fixed broadband services, namely DVB-S2, DVB- RCS and SATMODE, to mobile systems Targeting aeronautical, maritime and terrestrial domains. The aim is to evaluate if it is possible to minimize the impact of mobility to the standards and to keep backward compatibility. The critical analysis shall cover different parts of the system, e.g. the physical layer, the networking aspects, the link layer, the antenna matters, the regulatory issues. 30

31 DVB-RCS Benchmarking (New ITT Q4 2005) Benchmark a set of current DVB-RCS based services offer against selected satellite and terrestrial broadband access technologies offering similar services. Functional, performance and operational aspects are to be analysed and tested for the selected services. The outcome of the present work will include suggestions for potential improvements of DVB-RCS systems in different areas: standard, operations and service offer. 31

32 Resources Management using Adaptive Fade Mitigation Techniques (FMT) in DVB-RCS Multi- Beam Systems ( TriaGnoSys, Nera, Audens ACT, DLR) Study and performance assessment of innovative Radio Resource Management (RRM) techniques for adaptive satellite systems Deep analysis and trade-off of suitable RRM techniques related to FWD and RTN links admission control, queuing, scheduling and framing Perform detailed design of pre-selected RRM techniques (algorithms, ground and space segment implementation strategy, required signalling) Assess impact to current satellite data communication standards (DVB-S2, DVB-RCS) Optimise performance by means of a software simulator combining physical layer, MAC, RRM and application modelling Develop a software simulator to assess performance with respect to a non-adaptive satellite system 32

33 Harmonized Control and Management Planes for DVB-RCS Systems The present activity objective is twofold: a) to study a generic common control plane for the provision of advanced connectivity services over broadband meshed DVB-RCS based networks and the inter-working with terrestrial networks, b) to study the definition of an optimised DVB- RCS management common platform in order to address full interoperability between different DVB-RCS products vendors. The study activity for the standardized generic control plane includes the study of the applicability of a standardized generic control plane (e.g. GMPLS-based) for a number of satellite mesh scenarios, the design of the new proposed control plane into the DVB-RCS standard and the simulator development for the validation of the standardized common control plane. The study includes the definition of the optimised DVB-RCS management common platform and the design specification part in order to integrate the proposed scheme into the existing DVB-RCS standard signalling and management mechanisms. 33

34 Joint Turbo Decoding and Carrier Synchronization (EMS TurboConcept- Eurecom) Study optimise, design and demonstrate in a real-time laboratory environment with a modified DVB-RCS hardware platform, an efficient joint iterative decoding and carrier synchronization for DVB-RCS systems. The activity also includes the study of the applicability of the selected algorithms to 8PSK Also covers the study and design of enhanced joint decoding and synchronization techniques for DVB-S2 34

35 Novel Intra-System Interference Mitigation Techniques and Technologies for Next Generation Broadband Satellite Systems (Space Engineering, Eurecom, FTW, University of Bologna) Study and performance assessment of techniques to mitigate interference in broadband fixed/mobile systems Definition of different system scenarios, including standard compatible (DVB-S2/DVB- RCS) systems Analysis and optimization of Interference Mitigation (IM) techniques, including performance assessment in linear and non-linear conditions Definition of synchronization and channel estimation algorithms suitable to the proposed systems/techniques Applicability of IM techniques to Mobile Satellite Systems Development of a comprehensive system simulator able to analyze in detail the proposed IM techniques IM algorithms performance assessment for broadband and mobile systems, both at physical layer and at system level 35

36 Study of Enhanced Digital Transmission Techniques for Broadband Satellite Digital Transmissions (New ITT: Closed on August 5 th 2005) Study enhanced digital transmission techniques for broadband and narrowband satellite digital transmissions with both linear and continuous phase modulations Both the forward and the return link are considered with the applications being the same as the ones targeted by the DVB-S2 the DVB-RCS Standard and SATMODE Particular focus on Digital TV Broadcasting, Interactive Services and interactive TV. 36

37 Adaptive Coding and Modulation Modem for Broadband Communications ( Nera, EADS Astrium, TurboConcept, Fraunhofer IIS, DLR, Hispasat) Real-time demonstrator of a two-way broadband modem exploiting ACM Selection, design, implementation and testing of the physical layer adaptation algorithms Laboratory testbed detailed design Testbed development Demonstration of the modem prototype capability to operate in an emulated realistic satellite environment that is implemented by means of a satellite channel simulator Rider on Return Link Optimisation Study of contention-based access techniques Detailed physical layer design, including higher order modulations and novel demodulation algorithms Enhanced IP datagrams mapping over the physical layer Definition of novel frame format 37

38 Advanced modem prototype for interactive satellite terminals (New ITT: Q4 2005) Develop a modem prototype (terminal and Hub sides) implementing innovative physical and MAC layer techniques suitable to interactive satellite terminals. The primary objective of these techniques is to first to improve performance and to reduce the overall terminal-plus-service cost. The prototype will implement DVB-S2 physical layer on the forward link while a modified DVB-RCS on the return link. A channel simulator will also be implemented 38

39 Modem for High Order Modulation Schemes (MHOMS) (Alcatel Alenia Space Politecnico di Torino Universita di Pisa ENST Bretagne Space Engineering) Aimed at the research, design development and demonstration of an innovative high-rate, very high-speed, on-the-fly re-configurable satellite digital modem prototype, with maximum bit rate of 1Gbps supporting a wide range of spectral efficiencies (from 0.5 to 5.4 bps/hz). Modem performance very close to Shannon capacity bound Design of innovative modulation/demodulation techniques Demonstrate feasibility of core HW section of the physical layer, requiring highly innovative design approach, since its unprecedented throughput/efficiency Air interface proposed as new standard for downlink telemetry 39

40 High Rate Digital Modem (Phase 3) (Space Engineering) Development of an FPGA-based high rate modem prototype implementing the DVB-S2 LDPC coder/decoder together with a modulator and a pilot-based demodulator. The demonstrator will be implementing the DVB-S2 transmission framing and signalling in ACM mode. All the carrier and timing synchronization functions will be implemented by using state-ofthe-art algorithms that make use of pilot symbols interspersed with the data symbols according to the DVB-S2 standard. A typical satellite channel will be emulated, including phase noise, carrier frequency errors, TWTA non-linearities, IMUX and OMUX filters.. 40

41 Study on the Impact of DVB-S2 onto the cost of DVB-RCS Terminals (New ITT Q4 2005) To evaluate the impact in terms of cost that the newly defined DVB-S2 standard can have onto the current and next generation DVB-RCS receiver terminals. Analyse which are the most demanding components in a DVB-S2 compliant DVB-RCS terminal, determine their complexity, estimate their cost and propose low cost solutions A high level design of the DVB-S2 receiver shall be carried out, bearing in mind the final goal of having a low cost terminal. Possibly different solutions can be investigated. Eventually a cost-effective DVB-S2 receiver implementation is to be proposed together with a set of recommendations/solutions on methods and techniques to reduce the cost of DVB-RCS terminals. 41

42 DVB-S2 Satellite Experiment (New ITT closing date: 27/7/2005) To perform an in-depth verification and optimisation of the many new features present in the DVB-S2 standard through an extensive campaign consisting of field trials and measurements. Of particular relevance are issues like verification of the adaptive coding and modulation capability to track channel variations in time and space, impact of low-cost Satellite Terminal (ST) front end, demodulator synchronization issues with different and time variant modulation schemes, impact of typical satellite transponder linear and non-linear distortions. The activity will focus on verification of the different profiles (broadcast, interactive consumer, professional) of the new standard using a satellite link with particular emphasis on the most critical aspects. The activity will use prototype DVB-S2 modems, modified DVB-RCS return link equipment able to support DVB-S2 and an existing space segment for both Ku and Ka-band. 42