Comparison of different combining methods for space-diversity FSO systems


Conference Paper

© 2014 IEEE. This paper gives an overview of different signal combining schemes for free space optical (FSO) communication systems employing spatial diversity (SD) for the case of lognormal weak turbulence atmospheric channels. The receiver configurations are explained and categorized into two domains, namely optical and electrical. Moreover, a new combining scheme in the electrical domain, called 'logical' domain combining, is introduced. We present closed-form expressions of bit-error-rate for the combining schemes, considering the typical case of a single-input multiple-output (SIMO) system. Through some numerical analyses, we show that depending on the number of receivers and the turbulence strength, the proposed logical combining method outperforms the other ones.

Full Text

Duke Authors

Cited Authors

  • Abadi, MM; Ghassemlooy, Z; Smith, D; Ng, WP; Khalighi, MA; Zvanovec, S

Published Date

  • January 1, 2014

Published In

  • 2014 9th International Symposium on Communication Systems, Networks and Digital Signal Processing, Csndsp 2014

Start / End Page

  • 1023 - 1028

International Standard Book Number 13 (ISBN-13)

  • 9781479925810

Digital Object Identifier (DOI)

  • 10.1109/CSNDSP.2014.6923979

Citation Source

  • Scopus