Comparison between the Performance of Algorithmic Optical Codes and Orthogonal Optical Codes in OCDMA Systems

Martín González, Jesús Ángel and Poves Valdés, Enrique and López Hernández, Francisco (2008). Comparison between the Performance of Algorithmic Optical Codes and Orthogonal Optical Codes in OCDMA Systems. In: "10th International Symposium on Spread Spectrum Techniques and Applications, 2008. ISSSTA '08", 25/08/2008-28/08/2008, Bolinia, Italia. ISBN 978-1-4244-2203-6.

Description

Title: Comparison between the Performance of Algorithmic Optical Codes and Orthogonal Optical Codes in OCDMA Systems
Author/s:
  • Martín González, Jesús Ángel
  • Poves Valdés, Enrique
  • López Hernández, Francisco
Item Type: Presentation at Congress or Conference (Article)
Event Title: 10th International Symposium on Spread Spectrum Techniques and Applications, 2008. ISSSTA '08
Event Dates: 25/08/2008-28/08/2008
Event Location: Bolinia, Italia
Title of Book: Proceedings of 10th International Symposium on Spread Spectrum Techniques and Applications, 2008. ISSSTA '08
Date: September 2008
ISBN: 978-1-4244-2203-6
Subjects:
Faculty: E.T.S.I. Telecomunicación (UPM)
Department: Tecnología Fotónica [hasta 2014]
Creative Commons Licenses: Recognition - No derivative works - Non commercial

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Abstract

A novel method to be used in OCDMA systems is exhaustively described in this paper. It uses Algorithmic Optical Codes (AOCs). They are based on the signature sequence idea. However patterns are constantly changing. A common seed for pseudo-random sequence is the signature element. In this paper a derivation of the probability of error due to the multiple-access interference is provided. An other contribution of this work is also the comparison between the AOCs and the Orthogonal Optical Codes (OOCs) with (auto- and cross-) correlation equal to one. Attending to the cardinality limitation problem observed in OOCs, the comparison is focused on the number of users allowed by the two different systems aforementioned. As result we state that a system using AOCs allows more users than one using OOCs when the codes are long enough.

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