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A new code for optical code division multiple access systems


Syed Junid, Syed Alwee Aljunid and Zan, Zuraidah and Ahmad Anas, Siti Barirah and Abdullah, Mohamad Khazani (2004) A new code for optical code division multiple access systems. Malaysian Journal of Computer Science, 17 (2). pp. 30-39. ISSN 0127-9084


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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Official URL or Download Paper: http://e-journal.um.edu.my/publish/MJCS/146-161

Additional Metadata

Item Type: Article
Divisions: Faculty of Engineering
Publisher: Faculty of Computer Science and Information Technology, University of Malaya
Keywords: Cross-correlation; Double weight (DW) code; Modified double weight (MDW) code; OSCDMA
Depositing User: Nabilah Mustapa
Date Deposited: 30 Dec 2016 03:07
Last Modified: 30 Dec 2016 03:07
URI: http://psasir.upm.edu.my/id/eprint/49488
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