Performance analysis of variable-weight multilength optical codes for wavelength-time O-CDMA multimedia systems

Varghese Baby, Wing C. Kwong, Cheng Yuan Chang, Guu Chang Yang, Paul R. Prucnal

Research output: Contribution to journalArticle

33 Scopus citations

Abstract

To support multimedia services with different discrete bit-rate requirements, families of multilength optical codes, such as the carrier-hopping prime code (CHPC), extended CHPC, and multiwavelength optical orthogonal code, were recently constructed for wavelength-time optical code-division multiple-access (O-CDMA). In this paper, the performances of these multilength optical codes in a multimedia O-CDMA system with a variable-weight operation are analyzed. Our study shows that short-length codes generate stronger interference than long-length codes. This supports services prioritization in O-CDMA. Our study also shows that code weight is a more important factor than code length in determining code performance.

Original languageEnglish (US)
Pages (from-to)1325-1333
Number of pages9
JournalIEEE Transactions on Communications
Volume55
Issue number7
DOIs
StatePublished - Jul 1 2007

All Science Journal Classification (ASJC) codes

  • Electrical and Electronic Engineering

Keywords

  • Multimedia services
  • Multiple length
  • Optical code division multiple access
  • Variable weight
  • Wavelength-time code

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