Abstract

ARVIZU-MONDRAGON, Arturo; SANTOS-AGUILAR, Joel  and  CABRERA-NAVA, Alejandro. MIMO Optical Wireless System with BPSK Modulation and Optimum Homodyne Reception Tolerant to Optical Phase Diffusion and Atmospheric Turbulence. Ing. invest. y tecnol. [online]. 2016, vol.17, n.2, pp.283-295.  Epub Apr 04, 2022. ISSN 2594-0732.

This paper presents an optical wireless MIMO communication system with binary modulation of the optical phase, which uses spatial diversity, optical homodyne reception, a post-detection stage for the optimal estimation of the optical phase, and maximum-likelihood linear combining stage, The use of a spatial diversity configuration enables to get a higher tolerance to the effects that the turbulence causes on the optical information signal while the optimal phase estimation stage compensates the degradation over the bit error rate caused by the phase-noise inherent to the optical sources commonly used in telecommunications. This approach, to the best of our knowledge, has not previously been addressed from the experimental point of view; we think that this is the more important contribution of our work. So, we present the implementation and characterization of our system in a simplified experimental set-up.

Keywords : optical MIMO; optical wireless communications; homodyne reception; optical turbulence; state variables.

        · abstract in Spanish     · text in Spanish     · Spanish ( pdf )