Title :
Impact of beat noise on an incoherent OCDMA system with temporal spreading
Author :
Ni, Bin ; Lehnert, James S. ; Zhang, Jin
Author_Institution :
Dept. of Electr. & Comput. Eng., Purdue Univ., West Lafayette, IN, USA
Abstract :
An incoherent optical CDMA (OCDMA) system with temporal spreading that uses a light source with nonzero coherence time is studied in this paper. A model is established to simulate the incoherent combining of multiple light pulses at the receiver. System performances for different ratios of chip duration to coherence time are evaluated. Results show that the performance with a nonideal source is noticeably degraded from that of the ideal case due to beat noise.
Keywords :
code division multiple access; optical fibre networks; optical noise; beat noise; incoherent OCDMA; multiple light pulses; optical code-division multiple-access; temporal spreading; Autocorrelation; Bandwidth; Coherence; Delay; Light sources; Multiaccess communication; Optical noise; Optical pulses; Optical receivers; Optical transmitters;
Conference_Titel :
Signals, Systems and Computers, 2004. Conference Record of the Thirty-Eighth Asilomar Conference on
Print_ISBN :
0-7803-8622-1
DOI :
10.1109/ACSSC.2004.1399097
