Abstract
A number of fiber-optic network architectures for high-speed communications have been proposed and studied in recent years. These architectures fall basically into three major categories: (1) single channel multiaccess/broadcast shared-medium architectures, comprising rings (e.g., FDDI) and busses (e.g., DQDB and Metrocore); (2) multichannel architectures based on either wavelength-division multiplexing (WDM) or space-division multiplexing or both, and using either multiaccess techniques or multihopping techniques or a combination thereof; and (3) star architectures with centralized switching, where switching is accomplished either electronically or photonically. Each of these types of architecture has its advantages and limitations.
© 1991 Optical Society of America
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