Permutation Routing in All-Optical Multistage Clos Network

Permutation routing is a popular communication pattern in the interconnection networks. Most of previous works consider routings on multistage interconnection networks (MINs) which consist of 2times2 switches. We considered all-optical rearrangeable permutation routing for Clos networks. The signal...

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Bibliographic Details
Main Authors: Ming-Jye Lee, Chi-Chang Chen, Chien-Ning Yeh
Format: Conference Proceeding
Language:English
Subjects:
All-optical networks
Clos network
Communication switching
Edge Coloring
Information technology
Multiprocessor interconnection networks
Optical crosstalk
Optical fiber networks
Optical interconnections
Optical switches
Paull's Matrix
Rearrangeable non-blocking
Wavelength routing
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Summary:Permutation routing is a popular communication pattern in the interconnection networks. Most of previous works consider routings on multistage interconnection networks (MINs) which consist of 2times2 switches. We considered all-optical rearrangeable permutation routing for Clos networks. The signal in the optical switch with the same wavelength will cause the crosstalk problem, so our proposed algorithm is to rearrange the same wavelength signals, so that no duplicate wavelength in any single middle switch. To avoid wavelength crosstalk, we use wavelength domain approach, and then to solve blocking condition by space domain approach.
DOI:10.1109/ITNG.2008.148