| Summary: | 碩士 === 國立中正大學 === 電機工程所 === 94 === FFT processor is one of the key components of OFDM system. The way to reduce the power consumption and area cost of FFT processor has been paid close attention to all the time. We analyzed the internal components of FFT processor. As there is different bit-width association in the components, which cause different influence on BER of OFDM system. We are under maintaining the same communication quality by the simulation flow of bit-width decision, can get one best bit-width association in order to save the area. In this thesis, the area of operation components of FFT processor can be saved 39.3 percent to 59.6 percent, and the storage size of twiddle factor can be saved 41.2 percent to 62.5 percent.
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