Abstract

We propose atmospheric optical code-division multiple-access (CDMA) systems. We analyze the bit-error rate 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 show that the atmospheric optical CDMA systems can realize high-speed communications when the logarithm variance of the scintillation is small. When s2 is large, we need to use forward-error correction codes.

[IEEE ]

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  1. K. Sato, T. Ohtsuki, H. Uehara and I. Sasase, "Effect of imperfect slot synchronization on direct-detection optical synchronous CDMA communication systems with PPM signaling", J. Lightwave Technol., vol. 14, pp. 1963-1969, Sep. 1996 .

J. Lightwave Technol. (1)

K. Sato, T. Ohtsuki, H. Uehara and I. Sasase, "Effect of imperfect slot synchronization on direct-detection optical synchronous CDMA communication systems with PPM signaling", J. Lightwave Technol., vol. 14, pp. 1963-1969, Sep. 1996 .

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