Evaluation of Blind Diversity Combining of Severely Faded Signals for High-Speed Free-Space Optical Communication under Atmospheric Turbulence

Manabu Arikawa*, Yoshimasa Ono, Toshiharu Ito

IoT Devices Research Laboratories, NEC Corporation, 1753 Shimonumabe, Nakahara-ku Kawasaki, 211-8666, Japan, *m-arikawa@cp.jp.nec.com

 

Abstract: We experimentally evaluated performance of a mode diversity receiver in severe fading channels of emulated LEO-to-ground link. Digital combining of three modes using adaptive filters tolerated to 10-kHz variation and relaxed the required power of 10-Gb/s QPSK by 9 dB.

 

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