Title:

Variable-Weight Optical Code Division Multiple Access System using Di erent Detection Scheme, Journal of Telecommunications and Information Technology, 2016, nr 3

Creator:

Anas, Siti Barirah Ahmad ; Moghaddasi, Majid ; Seyedzadeh, Saleh

Subject and Keywords:

direct detection ; variable-weight OCDMA ; AND detection ; QoS differentiation ; spectral amplitude coding

Description:

In this paper a Variable Weight OCDMA (VW-OCDMA) system using KS code with Direct Decoding (DD), Complementary Subtraction (CS) and AND subtraction detections is proposed. System performance is analyzed using mathematical approximation and software simulation. In mathematical analysis, the e ects of Phase-Induced Intensity Noise, shot noise and thermal noise are taken into account. Bit Error Rate of di erent users is plotted as a function of received optical power per chip with varying the bit rates and number of active users. It has been shown that for di erent bit rates and number of users, system using DD has better performance than the system applying CS and AND detection. Using DD scheme, the number of active users are 100 while this value is 27 and 25 in case of using CS and AND detection, respectively, when the received optical power per chip is {10 dBm.

Publisher:

National Institute of Telecommunications

Date:

2016, nr 3

Resource Type:

artykuł

Format:

application/pdf

Resource Identifier:

ISSN 1509-4553, on-line: ISSN 1899-8852

Source:

Journal of Telecommunications and Information Technology

Language:

ang

Rights Management:

Biblioteka Naukowa Instytutu Łączności