TY - JOUR
T1 - Multiple-wavelength optical orthogonal codes under prime-sequence permutations for optical CDMA
AU - Kwong, Wing C.
AU - Yang, Guu Chang
AU - Baby, Varghese
AU - Brès, Camille Sophie
AU - Prucnal, Paul R.
N1 - Funding Information:
Paper approved by J. A. Salehi, the Editor for Optical CDMA of the IEEE Communications Society. Manuscript received December 16, 2003; revised August 2, 2004. This work was supported in part by the U.S. Defense Advance Research Projects Agency (DARPA) under Grant MDA972-03-1-0006, and in part by the National Science Council of the Republic of China under Grant NSC 93-2218-E-005-002. This paper was presented in part at the International Symposium on Information Theory, Chicago, IL, June-July, 2004.
Copyright:
Copyright 2008 Elsevier B.V., All rights reserved.
PY - 2005/1
Y1 - 2005/1
N2 - In this paper, a new family of two-dimensional (2-D) wavelength-hopping time-spreading codes, which employs wavelength 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.
AB - In this paper, a new family of two-dimensional (2-D) wavelength-hopping time-spreading codes, which employs wavelength 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.
KW - Hard-limiting
KW - Optical code-division multiple access (O-CDMA)
KW - Optical orthogonal codes (OOCs)
KW - Wavelength-hopping time-spreading
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U2 - 10.1109/TCOMM.2004.840661
DO - 10.1109/TCOMM.2004.840661
M3 - Article
AN - SCOPUS:14044270728
SN - 0090-6778
VL - 53
SP - 117
EP - 123
JO - IEEE Transactions on Communications
JF - IEEE Transactions on Communications
IS - 1
ER -