Abstract
We present an architecture for implementing optical buffers, based on the feed-forward-buffer concept, that
can truly emulate input queuing and accommodate asynchronous packet and burst operation. The architecture uses
wavelength converters and fixed-length delay lines that are combined to form either a multiple-input buffer or a
shared buffer. Both architectures are modular, allowing the expansion of the buffer at a cost that grows
logarithmically with the buffer depth, where the cost is measured in terms of the number of switching elements, and
wavelength converters are employed. The architectural design also provides a tradeoff between the number of
wavelength converters and their tunability. The buffer architectures proposed are complemented with scheduling
algorithms that can guarantee lossless communication and are evaluated using physical-layer simulations to obtain
their performance in terms of bit-error rate and achievable buffer size.
© 2007 IEEE
PDF Article
More Like This
Cited By
You do not have subscription access to this journal. Cited by links are available to subscribers only. You may subscribe either as an Optica member, or as an authorized user of your institution.
Contact your librarian or system administrator
or
Login to access Optica Member Subscription