Research Article Open Access

Design and Cost Performance of Decoding Technique for Hybrid Subcarrier Spectral Amplitude Coding-Optical Code Division Multiple Access System

R.K.Z. Sahbudin, M.K. Abdullah, M. Mokhtar, S. Hitam and S.B. Ahmad Anas

Abstract

Problem statement: A hybrid technique combining subcarrier multiplexed and Spectral Amplitude Coding-Optical Code Division Multiple Access (SAC-OCDMA) deploying the Khazani-Syed code was proposed. It was proposed as a mean of increasing the maximum number of simultaneous active users by increasing the subcarrier and/or the SAC-OCDMA code word. Multiple Access Interference (MAI) is the most dominant cause of performance degradation in SACOCDMA systems. Approach: A decoding technique which was simple and easy to build named Spectral Direct Decoding (SDD) technique was proposed for the hybrid system of subcarrier SACOCDMA. Results: The comparison between the complementary subtraction and proposed SDD techniques for hybrid subcarrier SAC-OCDMA system in terms of cost performance was presented here. Results showed that the cost performance of the SDD technique offers a significant improvement over the complementary subtraction detection technique. Conclusion: It is shown that the cost performance of the hybrid system using SDD technique is significantly better than using the Complementary subtraction technique.

Journal of Computer Science
Volume 7 No. 10, 2011, 1525-1531

DOI: https://doi.org/10.3844/jcssp.2011.1525.1531

Submitted On: 24 May 2011 Published On: 4 August 2011

How to Cite: Sahbudin, R., Abdullah, M., Mokhtar, M., Hitam, S. & Anas, S. A. (2011). Design and Cost Performance of Decoding Technique for Hybrid Subcarrier Spectral Amplitude Coding-Optical Code Division Multiple Access System. Journal of Computer Science, 7(10), 1525-1531. https://doi.org/10.3844/jcssp.2011.1525.1531

  • 1,917 Views
  • 2,004 Downloads
  • 10 Citations

Download

Keywords

  • Cost performance
  • SDD technique
  • hybrid subcarrier
  • Spectral Amplitude Coding- Optical Code Division Multiple Access (SAC-OCDMA)
  • Spectral Direct Decoding (SDD)
  • communication systems
  • decoding technique