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Optical repetition MIMO transmission with multipulse PPM

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4 Author(s)
Wilson, S.G. ; Charles L. Brown Dept. of Electr. & Comput. Eng., Univ. of Virginia, Charlottesville, VA, USA ; Brandt-Pearce, M. ; Qianling Cao ; Baedke, M.

We study the use of multiple laser transmitters combined with multiple photodetectors for atmospheric, line-of-sight optical communication, and focus upon the use of multiple-pulse-position-modulation as a power-efficient transmission format, with signal repetition across the laser array. Ideal (photon counting) photodetectors are assumed, with and without background radiation. The resulting multiple-input/multiple-output channel has the potential for combating fading effects on turbulent optical channels, for which both log-normal and Rayleigh-fading models are treated. Our focus is upon symbol error probability for uncoded transmission, and on capacity for coded transmission. Full spatial diversity is obtained naturally in this application.

Published in:

Selected Areas in Communications, IEEE Journal on  (Volume:23 ,  Issue: 9 )

Date of Publication:

Sept. 2005

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