Optical orthogonal code construction using rejected delays reuse for increasing SubWavelength-switching capacity

TitleOptical orthogonal code construction using rejected delays reuse for increasing SubWavelength-switching capacity
Publication TypeJournal Article
Year of Publication2006
AuthorsKhattab, T. M. S., and H. M. Alnuweiri
JournalLightwave Technology, Journal of
Volume24
Pagination3280 -3287
Date Publishedsep.
ISSN0733-8724
Keywordscode constraints, code length, code weight, codes, delay elements, delays, element-by-element greedy algorithms, expansion efficiency factor, greedy algorithms, optical code switched networks, optical fibre networks, optical orthogonal codes, optical switches, rejected delays, rejected delays reuse, subwavelength switching, subwavelength-switching capacity
Abstract

Using a mathematical proof, the authors establish that in element-by-element greedy algorithms based on extended set representation of optical orthogonal codes (OOCs), smaller delay elements rejected during a construction step can be accepted in later steps. They design a novel algorithm that exploits this property and call it the rejected delays reuse (RDR) greedy algorithm. They show that employing the RDR method leads to code lengths that are shorter than those achieved for OOCs constructed using the classical greedy algorithm for the same code weight and the same number of simultaneous codes constraints. They then define a quantitative measure (factor) for OOCs efficiency based on its ability to expand subwavelength-switching capacity. They call this factor the expansion efficiency factor. They use this factor to show that reducing the code length, for the same code constraints, enhances the capacity of subwavelength optical code switched networks

URLhttp://dx.doi.org/10.1109/JLT.2006.879207
DOI10.1109/JLT.2006.879207

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