Bitrate flexible code division multiplex for atm access

Informations projet

FLEXIMACS

N° de convention de subvention: AC311

Date de début

Date de fin

Financé au titre de

• Specific programme of research, technological development and demonstration in the area of advanced communications technologies and services, 1994-1998

Coût total

Aucune donnée

Contribution de l’UE

Aucune donnée

Coordonné par

Alcatel SEL AG Dept. ZFZ/NO
Germany

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Les liens vers les livrables et les publications des projets du 7e PC, ainsi que les liens vers certains types de résultats spécifiques tels que les jeux de données et les logiciels, sont récupérés dynamiquement sur OpenAIRE .

Résultats exploitables

Know how for the development of S-CDMA transceiver chips

All the necessary blocks to set up the physical layer of a synchronous CDMA system were studied and implemented in a simulation platform in order to be evaluated taking into account realistic implementation aspects such as fixed point precision and complexity. Chip specifications were established in the scope of using synchronous CDMA in the upstream of a HFC network, thus enabling improvement of existing TDMA based cable modems with respect to e.g. resistance to ingress noise. Specifications includes all the mechanisms for efficient in-band acquisition of new modems, tracking of connected modems, power control, efficient data demodulation in burst or circuit mode, flexible allocation of bitrate to users, etc The know how is intended to be exploited in the scope of other media, such as power lines communications (PLC), broadband satellite communications, wireless local loop (WLL) or local multipoint distribution system (LMDS).