Abstract
We propose employing multi-beam propagating technology to mitigate the
influence of atmospheric scintillation to the wireless optical code division
multiple access (WOCDMA) system and then deduce the bit error rate (BER) formulas of
systems in weak and strong scintillations, respectively. According to simulation
experiment results, multi-beam propagation can improve the system performance very
well compared with single-beam propagating technique. Moreover, the more beams we
use, the better the performance we get. When the received optical power is -30 dBm,
the BER of the system employing four beams is 5 and 1 dB lower than that of using
single-beam propagating technique in weak and strong scintillations, respectively.
© 2011 Chinese Optics Letters
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