Title :
Influence of polarization mode dispersion on the BER performance of DS-OCDMA
Author :
Islam, Md Jahedul ; Islam, Md Rafiqul
Author_Institution :
Dept. of Electr. & Electron. Eng., Khulna Univ. of Eng. & Technol., Khulna, Bangladesh
Abstract :
In this paper, a theoretical analysis is presented to evaluate the influence of polarization mode dispersion (PMD) on the bit error rate (BER) performance of direct sequence optical code division multiple access system. In this analysis, intensity modulation direct detection technique is employed in single mode fiber operating at 1550nm, and optical orthogonal codes are used as address sequence. Optoelectronic conversion is performed by an avalanche photodiode in an optical correlator receiver. The system BER performance is determined on account of receiver, optical amplifier, and multiuser access interference noises. The power penalty suffered by the system is evaluated at BER of 10-9 as a function of number of simultaneous users, chip rates, and PMD co-efficient. The system performance is found to degrade more at higher chip rate, and longer fiber length due to the PMD.
Keywords :
code division multiple access; error statistics; intensity modulation; light polarisation; optical communication; optical dispersion; optical receivers; spread spectrum communication; DS-OCDMA; avalanche photodiode; bit error rate; direct sequence optical code division multiple access; intensity modulation direct detection technique; optical correlator receiver; optical orthogonal codes; optoelectronic conversion; polarization mode dispersion; Bit error rate; Optical fiber amplifiers; Optical receivers; Optical transmitters; BER Performance; DS-OCDMA; MAI; OOC; PMD;
Conference_Titel :
Computer and Information Technology (ICCIT), 2010 13th International Conference on
Conference_Location :
Dhaka
Print_ISBN :
978-1-4244-8496-6
DOI :
10.1109/ICCITECHN.2010.5723845
