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Multilevel coding in free-space optical MIMO transmission with Q-ary PPM over the atmospheric turbulence channel

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3 Author(s)
Djordjevic, I.B. ; Dept. of Electr. & Comput. Eng., Arizona Univ., Tucson, AZ, USA ; Vasic, B. ; Neifeld, M.A.

We propose an efficient coded modulation scheme for multiple input/multiple output free-space optical systems with Q-ary pulse-position modulation. It is based on multilevel coding and low-density parity-check codes as component codes. The proposed scheme provides excellent coding gain in the regime of strong atmospheric turbulence.

Published in:

Photonics Technology Letters, IEEE  (Volume:18 ,  Issue: 14 )