PASSIVE STAR-CONFIGURED OPTICAL LAN USING CSMA WITH A NOVEL COLLISION DETECTOR.

M. Kavehrad, C. E. Sundberg

Research output: Contribution to journalArticle

Abstract

A description is given of the design and theoretical performance of a passive star-configured multimode-optical-fiber local area network that uses carrier-sense multiple access with collision detection (CSMA/CD). A collision detection method is introduced that uses collision sequences constructed from cyclic error-correcting codes and a sequence weight violation rule. Each transmitter has its own unique sequence, and all sequences have identical Hamming weight. The collision-detection sequence is inserted in each packet header. The method allows detection of collisions subject to a wider dynamic range variation than competing methods. The collision detector is analyzed for an avalanche photodiode receiver. A dynamic range of 17 dB seems possible for a transmitter with an extinction ratio of 100 and a simple receiver with a fixed threshold.

Original languageEnglish (US)
Pages (from-to)1610-1615
Number of pages6
JournalConference Record - International Conference on Communications
StatePublished - 1987

Fingerprint

Carrier sense multiple access
Local area networks
Stars
Transmitters
Detectors
Avalanche photodiodes
Multimode fibers
Optical fibers

All Science Journal Classification (ASJC) codes

  • Media Technology

Cite this

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PASSIVE STAR-CONFIGURED OPTICAL LAN USING CSMA WITH A NOVEL COLLISION DETECTOR. / Kavehrad, M.; Sundberg, C. E.

In: Conference Record - International Conference on Communications, 1987, p. 1610-1615.

Research output: Contribution to journalArticle

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