Title :
Hybrid direct sequence/frequency hopping encoding/decoding for optical CDMA system using FBGs
Author :
Ding Meiling; Ran Jia; Zhang Xianmin; Chen Kangsheng
Author_Institution :
Dept. of Inf. Sci. & Electron. Eng., Zhejiang Univ., Hangzhou, China
fDate :
6/23/1905 12:00:00 AM
Abstract :
A hybrid direct sequence/frequency hopping (DS/FH) scheme is proposed for an optical code division multiple access (OCDMA) system. The optical encoder/decoder with prime-hop codes is based on fiber Bragg gratings (FBGs), and double optical hard-limiters are placed on both sides of decoder respectively. With such a design, the OCDMA system has large number of simultaneous user, high power efficiency and low bit error rate (BER). Furthermore, we apply a new method to calculate the precise BER of the system.
Keywords :
"Frequency","Encoding","Decoding","Multiaccess communication","Fiber gratings","Optical receivers","Bragg gratings","Bit error rate","Arrayed waveguide gratings","Optical modulation"
Conference_Titel :
Info-tech and Info-net, 2001. Proceedings. ICII 2001 - Beijing. 2001 International Conferences on
Print_ISBN :
0-7803-7010-4
DOI :
10.1109/ICII.2001.983659
