Mehran University Research Journal Of Engineering &
Technology (HEC Recognized In Category "X")
Publishing Since 1982.



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Monte-Carlo Simulation for PDC-Based Optical CDMA System

Keywords: Monte-Carlo, Optical CDMA, Noise Calibration.

Mehran University Research Journal of Engineering & Technology

Volume 29 ,  Issue 4

FAHIM AZIZ UMRANI,AHSAN AHMED URSANI,ABDUL WAHEED UMRANI

Abstract

This paper presents the Monte-Carlo simulation of Optical CDMA (Code Division Multiple Access) systems, and analyse its performance in terms of the BER (Bit Error Rate). The spreading sequence chosen for CDMA is Perfect Difference Codes. Furthermore, this paper derives the expressions of noise variances from first principles to calibrate the noise for both bipolar (electrical domain) and unipolar (optical domain) signalling required for Monte-Carlo simulation. The simulated results conform to the theory and show that the receiver gain mismatch and splitter loss at the transceiver degrades the system performance.