A New Code for Optical Code Division Multiple Access Systems

Authors

  • Syed Alwee Aljunid Faculty of Engineering, Universiti Putra Malaysia
  • Zuraidah Zan Faculty of Engineering, Universiti Putra Malaysia
  • Siti Barirah Ahmad Anas Faculty of Engineering, Universiti Putra Malaysia
  • Siti Barirah Ahmad Anas Faculty of Engineering, Universiti Putra Malaysia
  • Mohd. Khazani Abdullah Faculty of Engineering, Universiti Putra Malaysia

Keywords:

OSCDMA, Cross-correlation, Double Weight (DW) Code, Modified Double Weight (MDW) Code

Abstract

A new code structure based on Double-Weight (DW) code families is proposed for Spectral-Amplitude-Coding Optical Code Division Multiple Access (OCDMA) system. The constraint of a constant weight of 2 for the DW code can be relaxed using a mapping technique. By using this technique, codes that have a larger number of weight can be developed. Modified Double-Weight (MDW) Code is another variation of a DW code family that can has a variable weight greater than two. The MDW code possesses ideal cross-correlation properties and exists for every natural number n. A much better performance can be provided by using the MDW code compared to the existing codes such as Hadamard and Modified Frequency-Hopping (MFH) codes. This has been demonstrated from the theoretical analysis and simulation.

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Published

2004-12-01

How to Cite

Aljunid, S. A., Zan, Z., Ahmad Anas, S. B., Ahmad Anas, S. B., & Abdullah, M. K. (2004). A New Code for Optical Code Division Multiple Access Systems. Malaysian Journal of Computer Science, 17(2), 30–39. Retrieved from https://jml.um.edu.my/index.php/MJCS/article/view/6214

Issue

Vol. 17 No. 2 (2004): Malaysian Journal of Computer Science

Section

Articles