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WSSUS model
The WSSUS (Wide-Sense Stationary Uncorrelated Scattering) model provides a statistical description of the transmission behavior of wireless channels. "Wide-sense stationarity" means the second-order moments of the channel are stationary, which means that they depends only on the time difference, while "uncorrelated scattering" refers to the delay τ due to scatterers. Modelling of mobile channels as WSSUS (wide sense stationary uncorrelated scattering) is rather popular among specialists in recent years. A commonly used description of time variant channel applies the set of Bello functions and the theory of stochastic processes. ==References==
*Kurth, R. R.; Snyder, D. L.; Hoversten, E. V. (1969) ("Detection and Estimation Theory" ), ''Massachusetts Institute of Technology, Research Laboratory of Electronics, Quarterly Progress Report'', No. 93 (IX), 177–205
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