Title :
Wireless optical communications via diversity reception and optical preamplification
Author :
Razavi, Mohsen ; Shapiro, Jeffrey H.
Author_Institution :
Dept. of Electr. Eng. & Comput. Sci., MIT, Cambridge, MA, USA
Abstract :
Atmospheric optical communication systems that use optical preamplifiers and diversity reception to combat the effects of atmospheric turbulence are addressed. The effects of atmospheric turbulence, background light, source extinction ratio, amplified spontaneous emission, and receiver thermal noise are considered in a context of a semiclassical photon-counting approach. The particular diversity techniques that are investigated include aperture averaging, linear combining, and adaptive optics. Numerical results, obtained using a conditional Gaussian approximation, quantify the link margin improvement due to optical preamplification and diversity reception.
Keywords :
Gaussian processes; adaptive optics; atmospheric turbulence; diversity reception; optical communication; optical links; photon counting; preamplifiers; superradiance; adaptive optics; amplified spontaneous emission; aperture averaging; atmospheric optical communication; atmospheric turbulence; background light; conditional Gaussian approximation; diversity reception; linear combining; link margin improvement; optical preamplification; receiver thermal noise; semiclassical photon-counting; source extinction ratio; wireless optical communications; Background noise; Diversity reception; Extinction ratio; Optical fiber communication; Optical noise; Optical receivers; Preamplifiers; Spontaneous emission; Stimulated emission; Wireless communication;
Conference_Titel :
Communications, 2003. ICC '03. IEEE International Conference on
Print_ISBN :
0-7803-7802-4
DOI :
10.1109/ICC.2003.1204071
