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Optical Engineering

Performance analysis of spectral-phase-encoded optical code-division multiple-access system regarding the incorrectly decoded signal as a nonstationary random process
Author(s): Meng Yan; Minyu Yao; Hongming Zhang
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Paper Abstract

The performance of a spectral-phase-encoded (SPE) optical code-division multiple-access (OCDMA) system is analyzed. Regarding the incorrectly decoded signal (IDS) as a nonstationary random process, we derive a novel probability distribution for it. The probability distribution of the IDS is considered a chi-squared distribution with degrees of freedom r=1, which is more reasonable and accurate than in previous work. The bit error rate (BER) of an SPE OCDMA system under multiple-access interference is evaluated. Numerical results show that the system can sustain very low BER even when there are multiple simultaneous users, and as the code length becomes longer or the initial pulse becomes shorter, the system performs better.

Paper Details

Date Published: 1 November 2005
PDF: 7 pages
Opt. Eng. 44(11) 115002 doi: 10.1117/1.2128127
Published in: Optical Engineering Volume 44, Issue 11
Show Author Affiliations
Meng Yan, Tsinghua Univ. (China)
Minyu Yao, Tsinghua Univ. (China)
Hongming Zhang, Huazhong Univ. of Science and Technology (China)


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