Analysis of the performance of a wireless optical multi-input to multi-output communication system
| Autor: | Shlomi Arnon, Denis Bushuev |
|---|---|
| Rok vydání: | 2006 |
| Předmět: |
business.industry
Computer science Detector Transmitter Optical communication Communications system Transfer function Atomic and Molecular Physics and Optics Electronic Optical and Magnetic Materials Optics Optical transfer function Optical wireless Computer Vision and Pattern Recognition business Computer Science::Information Theory Communication channel |
| Zdroj: | Journal of the Optical Society of America A. 23:1722 |
| ISSN: | 1520-8532 1084-7529 |
| DOI: | 10.1364/josaa.23.001722 |
| Popis: | We investigate robust optical wireless communication in a highly scattering propagation medium using multielement optical detector arrays. The communication setup consists of synchronized multiple transmitters that send information to a receiver array and an atmospheric propagation channel. The mathematical model that best describes this scenario is multi-input to multi-output communication through stochastic slow changing channels. In this model, signals from m transmitters are received by n receiver-detectors. The channel transfer function matrix is G, and its size is n x m. G(i,j) is the transfer function from transmitter i to detector j, and m > or = n. We adopt a quasi-stationary approach in which the channel time variation has a negligible effect on communication performance over a burst. The G matrix is calculated on the basis of the optical transfer function of the atmospheric channel (composed of aerosol and turbulence elements) and the receiver's optics. In this work we derive a performance model using environmental data, such as documented turbulence and aerosol models and noise statistics. We also present the results of simulations conducted for the proposed detection algorithm. |
| Databáze: | OpenAIRE |
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