The research of atmospheric 2D optical PPM CDMA system with turbo coding

Xiuli Zhou; Zaoxia Li

doi:10.1117/12.730604

19 November 2007 The research of atmospheric 2D optical PPM CDMA system with turbo coding

Xiuli Zhou, Zaoxia Li

Proceedings Volume 6783, Optical Transmission, Switching, and Subsystems V; 678349 (2007) https://doi.org/10.1117/12.730604
Event: Asia-Pacific Optical Communications, 2007, Wuhan, China

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.

Citation Download Citation

Xiuli Zhou and Zaoxia Li "The research of atmospheric 2D optical PPM CDMA system with turbo coding", Proc. SPIE 6783, Optical Transmission, Switching, and Subsystems V, 678349 (19 November 2007); https://doi.org/10.1117/12.730604

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