Hybrid SCM SAC-OCDMA system employing new optical spectral amplitude direct decoding detection technique

R. K Z Sahbudin, M. K. Abdullah, M. D A Samad, M. A. Mahdi, Mahamod Ismail

Research output: Contribution to journalArticle

9 Citations (Scopus)

Abstract

In this research, a hybrid subcarrier multiplexed spectral-amplitude-coding optical code-division-multiple-access (SCM SAC-OCDMA) system is proposed for the purpose of combining the advantages of both techniques. SAC-OCDMA is employed because of its ability to eliminate the Multiple Access Interference (MAI) when code sequences with fixed in-phase cross correlation are used. In order to enhance the channel data rate of the OCDMA systems, the SCM technique is used. As a result, the hybrid system is robust against interference and is much more spectrally efficient. The system utilizes double weight (DW) code that has a weight W equal to two, code length N equal to six and cross correlation λ equal to 1. A simple and new detection technique called optical spectral amplitude direct decoding is proposed. Based on the theory and experimental simulation results obtained, the new proposed detection technique provides a better performance than the conventional balanced detection technique.

Original languageEnglish
Pages (from-to)1942-1947
Number of pages6
JournalJournal of Applied Sciences
Volume7
Issue number14
Publication statusPublished - 15 Jul 2007

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Multiple access interference
Hybrid systems
Code division multiple access
Decoding

Keywords

  • Hybrid SCM SAC-OCDMA
  • Multi access interference
  • Optical spectral amplitude direct decoding
  • Subtraction detection technique

ASJC Scopus subject areas

  • General

Cite this

Sahbudin, R. K. Z., Abdullah, M. K., Samad, M. D. A., Mahdi, M. A., & Ismail, M. (2007). Hybrid SCM SAC-OCDMA system employing new optical spectral amplitude direct decoding detection technique. Journal of Applied Sciences, 7(14), 1942-1947.

Hybrid SCM SAC-OCDMA system employing new optical spectral amplitude direct decoding detection technique. / Sahbudin, R. K Z; Abdullah, M. K.; Samad, M. D A; Mahdi, M. A.; Ismail, Mahamod.

In: Journal of Applied Sciences, Vol. 7, No. 14, 15.07.2007, p. 1942-1947.

Research output: Contribution to journalArticle

Sahbudin, R. K Z ; Abdullah, M. K. ; Samad, M. D A ; Mahdi, M. A. ; Ismail, Mahamod. / Hybrid SCM SAC-OCDMA system employing new optical spectral amplitude direct decoding detection technique. In: Journal of Applied Sciences. 2007 ; Vol. 7, No. 14. pp. 1942-1947.
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