Multiple scattering solution of millimeter wave propagation in strong sandstorm

As the operating frequencies of communication systems more higher into the millimeter wave range, and the density of particles in medium is more dense r, the effects of multiple scattering in sandstorm become more significant. This paper treats the problems of electromagnetic multiple scattering in s trong sandstorm by the Monte Carlo method. Based on the analytical theory o f multiple scattering, the millimeter wave propagation and scattering in di screte random media are investigated by means of the particle-tracking tech nique. The millimeter wave is regarded as a Markov chain of wave particle c ollisions in a medium in which it is scattered and absorbed. Considering th e effect of multiple scattering, millimeter wave attenuation induced by str ong sandstorm is simulated numerically. The values of theoretical calculati on are in good agreement with the measured results of simulated experiment at 34 and 93GHz.