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Satellite communications have a role in the provision of broadband corporate services, mainly those with inherent multicasting characteristics.
In this framework, the VERDI project aimed at delivering a comprehensive solution, demonstrating the value-added brought to corporate applications and working on the improvement of both the cost-effectiveness of the service provision and the perceived quality of the service.
3D applications have simultaneously used the two main modes of operation of a satellite multimedia platform:
IP Multicasting was used for updating shared database content and avatars position & attitude.
Pilot activities were performed in two sectors and 3 applications were developed on the basis of the VERDI platform and technologies:
E-learning with two applications focusing on:
3 types of network configurations have been used and tested by the users in this project:
Globally more than 100 users were involved in the operational testing of the VERDI applications and services.
Figure 1: Main C-VIBE user interface
Figure 2: Knowledge Virtual City - Interactive Space Chat & Forum
Figure 3: VERDI e-marketing
click for larger image
VERDI is based on the following key technologies:
With growing demand for multimedia services, Internet and multimedia service providers and end-users are looking for high-speed access, compatibility, availability and affordability. Satellites offer open standards, wide geographic coverage, and the possibility of interactive Internet access at 2 Mbit/s per user, and data broadcasting services at 40 Mbit/s per transponder.
Satellite multimedia services ensure fast delivery, the latest digital technology, and instant availability world-wide. The use of Digital Video Broadcasting (DVB) technology means high data rates and a combination of high-resolution graphics, fast real-time animation, CD-quality sound and user interactivity. Large numbers of users are able to download bulky files in a very short period of time with affordable transmission and reception equipment.
Smart routing and caching, for content delivery acceleration: VERDI experimented the integration within the Satellite multimedia platform of a system for routing and caching rich media contents to servers located at Points of Presence of terrestrial access networks (ADSL, cable networks, etc.).
This combination enables 1) bringing the contents closest to the users, 2) accelerating the delivery of the contents to the users and then solving the problem of congestion of the Internet, notably for Internet broadband applications. It enables also an optimisation of the use of the satellite bandwidth thanks to the IP multicast protocol without limiting the interactivity for the users.
The VERDI project concentrated its Pilot activities in two sectors: e-learning and e-marketing. Even if different markets have different challenges, the project put particular care in proposing and validating "general-purpose" solutions that can be later extended to other business fields.
The project was streamlined into 3 phases:
This phase aimed at defining the operational and technical demonstrator environment. It consisted in the analysis of the proposed pilot applications scenarios and in the identification of the functions at user level to be supported by the demonstrator The main outputs of this phase are the final Pilot Utilisation Plan (PilUP) and Pilot System Architecture (PSA).
This phase aimed at designing, developing and integrating the applications on the Eutelsat platform. Silicon Worlds developed the 3D graphical environments and the client server: the communications software (VRSAT) which will be implemented on the Eutelsat multimedia platform. The applications providers (INSEAD, INPIX and NETTUNO) integrated their specific contents. The phase was completed by the operational test of the VERDI Demonstrator.
This phase aimed at evaluating and validating the Pilot applications implemented in the project. These tests involved a wide community of users in the different applications. Specific methodology and protocols have been used for each application.
The project has been successfully closed with the Final Review held in ESTEC on February 7, 2004.
The global VERDI concept has been validated for the two market segments:
- Multi-users and distributed environment (collaborative work);
- Virtual reality;
- Low costs user equipment;
- High-quality Broadband Service delivery.
For more details on the project results and conclusion please refer to the final report.