Optical MIMO transmission using Q-ary PPM for atmospheric channels

Author

Wilson, S.G. ; Brandt-Pearce, M. ; Cao, Q. ; Leveque, J.

Author_Institution

Dept. of Electr. & Comput. Eng., Virginia Univ., Charlottesville, VA, USA

Volume

1

fYear

2003

fDate

9-12 Nov. 2003

Firstpage

1090

Abstract

The use of multiple laser transmitters combined with multiple photodetectors is studied for terrestrial, line-of-sight optical communication. The resulting multiple-input multiple-output channel has the potential for combatting fading effects on turbulent optical channels. In this paper, the modulation format is repetition Q-ary PPM across lasers, with intensity modulation. Ideal photodetectors are assumed, with and without background radiation. Both Rayleigh and log-normal fading models are treated. The focus is upon both symbol/bit error probability for uncoded transmission, and on channel capacity.

Keywords

MIMO systems; Rayleigh channels; channel capacity; error statistics; intensity modulation; optical links; optical transmitters; photodetectors; pulse position modulation; Q-ary PPM; Rayleigh models; atmospheric channels; background radiation; bit error probability; channel capacity; fading effects; intensity modulation; line-of-sight optical communication; log-normal fading models; multiple laser transmitters; multiple photodetectors; multiple-input multiple-output channel; optical MIMO transmission; turbulent optical channels; uncoded transmission; Channel capacity; Error probability; Intensity modulation; Laser modes; MIMO; Optical fiber communication; Optical modulation; Optical transmitters; Photodetectors; Rayleigh channels;

fLanguage

English

Publisher

ieee

Conference_Titel

Signals, Systems and Computers, 2004. Conference Record of the Thirty-Seventh Asilomar Conference on

Print_ISBN

0-7803-8104-1

Type

conf

DOI

10.1109/ACSSC.2003.1292093

Filename

1292093