Razieh Falahian

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Modeling real-world systems plays a piv-otal role in their analysis and contributes to a better understanding of their behavior and performance. Classification, optimization , control, and pattern recognition problems rely heavily on modeling techniques. Such models can be categorized into three classes: white-box, black-box, and gray-box (Nelles, 2001).(More)
Initial estimation is a considerable issue in channel estimation techniques, since all of the following processes depends on it, which in this paper its improvement is discussed. Least Square (LS) method is a common simple way to estimate a channel initially but its efficiency is not as significant as more complex approaches. It is possible to enhance(More)
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