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Proceedings Paper

The research of atmospheric 2D optical PPM CDMA system with turbo coding
Author(s): Xiuli Zhou; Zaoxia Li
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Paper Abstract

The atmospheric two-dimensional optical code-division multiple-access (CDMA) systems using pulse-position modulation (PPM) and Turbo-coded were presented. We analyzed the bit-error rate (BER) of the proposed system using pulse-position modulation (PPM) with considering the effects of the scintillation, avalanche photodiode noise, thermal noise, and multi-user interference. We showed that the atmospheric two dimensional (2D) optical PPM CDMA systems can realize high-speed communications when the logarithm variance of the scintillation is less than 0.1, and the turbo-coded atmospheric optical CDMA system has better bit error rate(BER) performance than the atmospheric optical PPM CDMA systems without turbo-coded. We also showed that the turbo-coded system has better performance than the multi-user detection system.

Paper Details

Date Published: 19 November 2007
PDF: 7 pages
Proc. SPIE 6783, Optical Transmission, Switching, and Subsystems V, 678349 (19 November 2007); doi: 10.1117/12.730604
Show Author Affiliations
Xiuli Zhou, Univ. of Electronic Science and Technology of China (China)
Zaoxia Li, Univ. of Electronic Science and Technology of China (China)


Published in SPIE Proceedings Vol. 6783:
Optical Transmission, Switching, and Subsystems V
Dominique Chiaroni; Wanyi Gu; Ken-ichi Kitayama; Chang-Soo Park, Editor(s)

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