Some optical orthogonal codes for asynchronous CDMA systems

Author

Neto, A.D. ; Moschim, E.

Author_Institution

D.S.I.F., Campinas State Univ., Brazil

Volume

3

fYear

2002

fDate

17-21 Nov. 2002

Firstpage

2065

Abstract

Two families of optical orthogonal codes (OOCs) are algebraically designed by using the Galois field. The first family of codes has non-ideal auto and crosscorrelation λ_a = 1, λ_c = 2 properties. The second family of codes has Ideal auto and cross-correlation λ_a = 1, λ_c = 1 properties. It is shown that the p-1 codes exist for every prime p forming a family of (ν, ω, λ_a, λ_c) OOCs. These codes may serve as many as p-1 different users in the fiber optic code division multiple access system. We also compare their performance with previous known optical orthogonal codes. We present examples of the constructed codes. The algebraic OOCs being proposed in this paper find applications in asynchronous OCDMA systems.

Keywords

Galois fields; algebraic codes; code division multiple access; correlation methods; multiuser channels; optical fibre communication; Galois field; algebraic OOC; asynchronous CDMA systems; asynchronous OCDMA systems; auto correlation; code division multiple access system; cross-correlation; optical orthogonal codes; Bit error rate; Equations; Galois fields; Multiaccess communication; Multiple access interference; Optical fiber communication; Optical fibers; Performance analysis;

fLanguage

English

Publisher

ieee

Conference_Titel

Global Telecommunications Conference, 2002. GLOBECOM '02. IEEE

Print_ISBN

0-7803-7632-3

Type

conf

DOI

10.1109/GLOCOM.2002.1188994

Filename

1188994