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Multiple-Wavelength Optical Orthogonal Codes Under Prime-Sequence Permutations for Optical CDMA.
- Source :
-
IEEE Transactions on Communications . Jan2005, Vol. 53 Issue 1, p117-123. 7p. - Publication Year :
- 2005
-
Abstract
- In this paper, a new family of two-dimensional (2-D) wavelength-hopping time-spreading codes, which employs wave-length hopping algebraically under prime-sequence permutations on top of time-spreading optical orthogonal codes, is studied and analyzed. Different from other 2-D codes, our new codes allow the number of wavelengths and code length to be chosen independently and, at the same time, the code cardinality is a quadratic function of the number of wavelengths without sacrificing the maximum cross-correlation value (i.e., still at most one). They are particularly suitable for high bit-rate optical code-division multiple-access systems with broadband mode-locked lasers, in which the number of time slots is very limited, and system capacity can only be grown by increasing the number of wavelengths, rather than code length. Finally, a novel wavelength-aware detector for wavelength-hopping time-spreading codes is discussed and shown to provide improved code performance. [ABSTRACT FROM AUTHOR]
Details
- Language :
- English
- ISSN :
- 00906778
- Volume :
- 53
- Issue :
- 1
- Database :
- Academic Search Index
- Journal :
- IEEE Transactions on Communications
- Publication Type :
- Academic Journal
- Accession number :
- 16109724
- Full Text :
- https://doi.org/10.1109/TCOMM.2004.840661