Programme Element: ARTES 5.1
Tender nr.: AO 1-7509
Open from: 07 May 2013
Closes on: 02 Jul 2013
The objective of this study is to define the next generation regenerative systems for security scenarios (e.g. civil protection, emergency). This will include: analysis of the scenario options, investigation of the optimum architectural design and protocol stack, assessment of the system performance improvements, study of the complexity of the on-board processors and related signalling, development of a breadboard.
Targeted Improvements: Doubled throughput with respect to e.g. regenerative DVB-RCS systems, improved end-to-end performances (delay), adaptability/flexibility w.r.t. application scenarios.
Next generation regenerative On-Board Processor (OBP) may play a key role in the development of broadband satellite systems optimised for security applications, e.g. emergency, civil protection scenarios. The flexibility, adaptability and re-configurability capabilities they could provide, in addition to improved performances, can be an asset for these applications.
The improved performances will be notably provided by the integration of new, powerful and IP-friendly Layer 2 encapsulation protocols (e.g. DVB GSE or RLE) defined in replacement of MPEG or ATM. They offer reduced overhead, higher flexibility with integrated support for Adaptive Coding and Modulation (ACM) and better end user Quality of Service (QoS) differentiation. Their integration could result in an efficient and high performance OBP, performing intelligent layer 2 packet scheduling and switching between uplink and downlink with limited signal processing.
The activity will start with the analysis of scenario opportunities for next generation regenerative OBP in the context of security applications. System and OBP functional and performance requirements will then be derived, and a high level architecture OBP will be designed. The following key issues will be addressed: Layer 2 encapsulation protocols selection, packet or fragment switching, dynamic ACM and QoS operation in up- and down-links, on-board DVB-S2 scheduler complexity, decentralization of radio resource management functionalities (split between on-board and on-ground), OBP architecture complexity and feasibility, required ground segment functionalities and extra signalling needs.
A breadboard (fast prototyping board) of the proposed system (including ground segment) shall be developed to validate the defined architecture design and its expected performances. End-to-end system performances under different traffic and system scenarios shall be assessed.
Contributions to the meshed profile of the DVB-RCS Next Generation normative and guidelines documents shall be performed.