Performance analysis of spectral-phase-encoded optical code-division multiple-access system regarding the incorrectly decoded signal as a nonstationary random process

Meng Yan; Minyu Yao; Hongming Zhang

doi:10.1117/1.2128127

1 November 2005 Performance analysis of spectral-phase-encoded optical code-division multiple-access system regarding the incorrectly decoded signal as a nonstationary random process

Meng Yan, Minyu Yao, Hongming Zhang

Author Affiliations +

Optical Engineering, Vol. 44, Issue 11, 115002 (November 2005). https://doi.org/10.1117/1.2128127

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.

©(2005) Society of Photo-Optical Instrumentation Engineers (SPIE)

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Meng Yan, Minyu Yao, and Hongming Zhang "Performance analysis of spectral-phase-encoded optical code-division multiple-access system regarding the incorrectly decoded signal as a nonstationary random process," Optical Engineering 44(11), 115002 (1 November 2005). https://doi.org/10.1117/1.2128127

Published: 1 November 2005

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KEYWORDS

Signal processing

Computer programming

Optical engineering

Transmitters

Phase shifts

Probability theory

Receivers

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