DocumentCode :
934659
Title :
A new family of optical code sequences for use in spread-spectrum fiber-optic local area networks
Author :
Maric, S.V. ; Kostic, Z.I. ; Titlebaum, Edward L.
Author_Institution :
Dept. of Electr. Eng., City Coll. of New York, NY, USA
Volume :
41
Issue :
8
fYear :
1993
fDate :
8/1/1993 12:00:00 AM
Firstpage :
1217
Lastpage :
1221
Abstract :
The problem of the algebraic construction of a particular family of optical codes for use in code-division multiple-access (CDMA) fiber-optic local area networks (LANs) is treated. The conditions that the code families have to satisfy when used in such systems are reviewed. The new codes are called quadratic congruence codes, and the construction of the corresponding sequences is based on the number-theoretic concept of quadratic congruences. It is shown that p-1 codes exist for every odd prime p and can serve as many as p-1 different users in the CDMA fiber-optic system. The codes belong to the family of optical orthogonal codes, their auto- and cross-correlation properties are established, and their performance is compared to that of the previous optical codes. Examples of the codes and examples of their auto- and cross-correlation functions are given
Keywords :
code division multiple access; codes; correlation methods; local area networks; optical links; spread spectrum communication; CDMA; LAN; autocorrelation properties; code-division multiple-access; cross-correlation properties; number-theoretic concept; optical code sequences; optical orthogonal codes; quadratic congruence codes; spread-spectrum fiber-optic local area networks; Frequency synchronization; Intelligent networks; Multiaccess communication; Optical fiber LAN; Optical fiber communication; Optical fiber networks; Optical receivers; Optical signal processing; Spread spectrum communication; Time division multiple access;
fLanguage :
English
Journal_Title :
Communications, IEEE Transactions on
Publisher :
ieee
ISSN :
0090-6778
Type :
jour
DOI :
10.1109/26.231965
Filename :
231965
Link To Document :
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