Comparison of unipolar codes for DS-OCDMA system

Amel Farhat, Mourad Menif, Catherine Lepers, Houria Rezig, Philippe Gallion

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

Abstract

In this work, we describe a Direct Sequence Optical Codes Division Multiple Access (DS-OCDMA) system using unipolar codes which are the Prime Sequence (PS), the Quadratic Codes (QC) and the Extended Quadratic Codes (EQC). The performances comparison of the three family codes, for coherent and incoherent source, shows that the EQC codes offer better results on term of Bit Error Rate (BER) than the two others family codes. In fact this family codes presents the better correlation properties. Moreover, we demonstrate that by controlling the optical bandwidth of the encoders/decoders, we can improve system performances in the case of incoherent source.

Original languageEnglish
Title of host publicationICTON-MW 2008 - International Conference on Transparent Optical Networks "Mediterranean Winter" 2008 - Conference Proceedings
DOIs
Publication statusPublished - 1 Dec 2008
Externally publishedYes
EventInternational Conference on Transparent Optical Networks "Mediterranean Winter" 2008, ICTON-MW 2008 - Marrakech, Morocco
Duration: 11 Dec 200813 Dec 2008

Publication series

NameICTON-MW 2008 - International Conference on Transparent Optical Networks "Mediterranean Winter" 2008 - Conference Proceedings

Conference

ConferenceInternational Conference on Transparent Optical Networks "Mediterranean Winter" 2008, ICTON-MW 2008
Country/TerritoryMorocco
CityMarrakech
Period11/12/0813/12/08

Keywords

  • BER
  • Coherent/incoherent source
  • DS-OCDMA
  • Optical bandwidth
  • Unipolar codes

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