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Simulation of multipath impulse response for indoor wireless optical channels

1993; Institute of Electrical and Electronics Engineers; Volume: 11; Issue: 3 Linguagem: Inglês

10.1109/49.219552

1558-0008

John R. Barry, Joseph M. Kahn, William J. Krause, Edward A. Lee, David G. Messerschmitt,

Semiconductor Lasers and Optical Devices

A recursive method for evaluating the impulse response of an indoor free-space optical channel with Lambertian reflectors is presented. The method, which accounts for multiple reflections of any order, enables accurate analysis of the effects of multipath dispersion on high-speed indoor optical communication systems. A simple algorithm for computer implementation of the technique and computer simulation results for both line-of-sight and diffuse transmitter configurations are also presented. In both cases, it is shown that reflections of multiple order are a significant source of intersymbol interference. Experimental measurements of optical multipath, which help verify the accuracy of the simulations, are discussed. >