REAL-TIME COMMUNICATION-NETWORKS BASED ON OPTICAL-FIBER CODE-DIVISIONMULTIPLE-ACCESS SCHEME

Optical signal processing can eliminate the speed limitation at electr o-optic/optoelectronic interfaces, which allows the use of simple band width-expansion-type protocols to support high-speed networking for re al-time computer and control applications. This paper proposes a code- division multiple-access (CDMA) network which uses prime codes and opt ical processing to guarantee real-time data communications. All-optica l architectures for fast, tunable CDMA encoders and decoders are prese nted. Systematic delay-control algorithms for prime codes are also giv en, which can be easily performed in the optical domain to support a h igh throughput and a very fast reconfiguration time. Copyright (C) 199 6 Elsevier Science Ltd.