researResearch - Télécom Bretagne

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researResearch
TAC
Turbo-algorithms and circuits
Project Leader :
Catherine Douillard
Department:
• Electronics
Project team:
Patrick Adde,
Claude Berrou,
Catherine Douillard,
Michel Jézéquel,
Sylvie Kerouédan,
Charlotte Langlais,
Yannick Saouter,
Charbel Abdel Nour,
Alexandre Graell i Amat,
Nicolas Bitouze,
Kamel Boukantar,
Haifa Fares,
Vincent Gripon,
Dhouha Kbaier,
Meng Li,
Amina Piemontese,
Roua Youssef.
Aims and objectives throughout the project
Telecom Bretagne is internationally recognized for its specialized work in the
area of iterative processing for channel coding (turbo codes) and digital
communication (turbo communications). The TAC project aims to maintain
this high level of recognition thanks to an approach based on a strong
interaction between algorithmics and circuit design.
In the area of channel coding, the themes we focus on are the study of
comparative performances of various types of concatenated schemes, the
choice of component codes, the properties of convergence and acceleration of
iterative process, the permutations in the case of a parallel concatenation,
the association between turbo codes and high-order modulations, the study
of theoretical performances of turbo codes, and architectures of decoding
circuits.
In the area of turbo-communications, the TAC project aims to put into place
iterative techniques in Orthogonal frequency-division multiplexing (OFDM),
multi-sensor (MIMO) and multi-user (CDMA, IDMA) transmission systems.
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