Main Objective
Technical Approach
Key Issues
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Main objective

The aim of PHOENIX project is to develop a scheme offering the possibility to let the application world (source coding, ciphering) and the transmission world (channel coding, modulation) to talk to each other over an IPv6 protocol stack (network world), so that they can jointly develop an end-to-end optimised wireless communication link. The design trade-offs of interactive wireless video systems will be studied and performance comparisons will be provided both in the context of existing and future generations of wireless systems.

To reach this goal, the three following main axes will be followed:

  • develop innovative schemes to enable end-to-end joint optimisation over wireless links. This includes the development of flexible channel coding and modulation schemes, the adaptation of existing source coding schemes with respect to their ability for JSCC/D and the development of new ones specifically optimised for this purpose

  • establish efficient and adaptive optimisation strategies that will jointly control the coding blocks and realistically take into account the system limitations and specifications, such as the presence of ciphering, the presence of one or several wireless hops

  • build a global network architecture based on joint optimisation for future wireless systems. This objective includes the development of the transparent network communication approach which will allow to apply the optimisation strategies in any kind of fully IP-based network

The project is organised in three phases, as illustrated by the diagram below:

  • Phase 1 corresponds to pre-studies and development of the specifications of the PHOENIX approach. This first phase will all to set the basic principles and architecture for all partners.

  • Phase 2 corresponds to the technical development of new algorithms, related software developments and simulations. In particular, work will be carried out on source coding, channel coding and modulation (WP2) and on the impact of the transmission over an IPv6 network with security issues (WP3).

  • Phase 3 will correspond to the validation of the various concepts and solutions developed within phase 2 through trials and fair comparisons, as well as the integration of a set of selected solutions over a test-bed. The interest and efficiency gain through optimisation of a video transmission over a wireless IPv6 network will be demonstrated.