Coherent Optical Wireless Link Employing Phase Estimation with Multiple-Beam, Multiple-Aperture, for Increased Tolerance to Turbulence

Arturo Arvizu MONDRAGON  Juan-de-Dios Sachez LOPEZ  Francisco-Javier Mendieta JIMENEZ  

Publication
IEICE TRANSACTIONS on Communications   Vol.E93-B   No.1   pp.226-229
Publication Date: 2010/01/01
Online ISSN: 1745-1345
DOI: 10.1587/transcom.E93.B.226
Print ISSN: 0916-8516
Type of Manuscript: LETTER
Category: Optical Wireless Communications
Keyword: 
optical phase estimation,  coherent optical wireless,  optical diversity systems,  free-space optics,  

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Summary: 
We present a BPSK coherent optical wireless link in a multiple-beam, multiple-aperture configuration. The data are recovered using the signal obtained by the coherent addition of a set of maximum likelihood optical phase estimates and a select-largest stage. The proposal offers higher performance than the combining methods commonly used in optical wireless systems with diversity transmission and coherent detection.