Design of Multiweight Unipolar Codes for Multimedia Optical CDMA Applications Based on Pairwise Balanced Designs

Research output: Contribution to journalArticle

30 Scopus citations

Abstract

A novel class of constant-length variable-weight optical orthogonal codes is proposed that can support multimedia services with different data rates and quality-of-service requirements. The construction is based on the pairwise balanced designs, or more specifically, on an incidence structure defined on an integer lattice. Proposed codes are suitable for spectral-amplitude coding, fast-frequency hopping, and time-spreading encoding in multimedia environment. A novel dual-balanced decoder is proposed capable of canceling multiuser interference in multimedia applications for spectral-amplitude-coding schemes employing the unipolar codes having nonfixed in-phase cross correlation.

Original languageEnglish (US)
Pages (from-to)1850-1856
Number of pages7
JournalJournal of Lightwave Technology
Volume21
Issue number9
DOIs
StatePublished - Sep 1 2003

Keywords

  • Multimedia
  • Optical code-division multiple access (OCDMA)
  • Optical orthogonal codes (OOCs)
  • Pairwise balanced designs

ASJC Scopus subject areas

  • Atomic and Molecular Physics, and Optics

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