Optimizing spectral efficiency in multiwavelength optical CDMA system

Author

Chang, Tung-Wah Frederick ; Sargent, Edward H.

Author_Institution

Dept. of Electr. & Comput. Eng., Toronto Univ., Ont., Canada

Volume

51

Issue

9

fYear

2003

Firstpage

1442

Lastpage

1445

Abstract

Prime codes are excellent candidates for use in multiwavelength optical code-division multiple-access (O-CDMA) systems. We show that in an O-CDMA system using two-dimensional single-pulse-per-row codes, a single choice of the number of wavelength channels can. accommodate different numbers of users with maximal spectral efficiency. The optimum single-user-detection spectral efficiency of the system can be reached using AND detection. A fixed-hardware network can readily be adapted in response to changes in the number of users and traffic load.

Keywords

bandwidth allocation; code division multiple access; codes; optical fibre communication; signal detection; bandwidth allocation; multiwavelength optical CDMA system; multiwavelength optical code-division multiple-access; optical fiber communication; prime codes; signal detection; single-pulse-per-row codes; single-user-detection spectral efficiency; spectral efficiency optimization; Bandwidth; Bit error rate; Data communication; High speed optical techniques; Multiaccess communication; Multiple access interference; Optical fiber networks; Optical fibers; Telecommunication traffic; Two dimensional displays;

fLanguage

English

Journal_Title

Communications, IEEE Transactions on

Publisher

ieee

ISSN

0090-6778

Type

jour

DOI

10.1109/TCOMM.2003.816969

Filename

1231640