METHOD FOR DESIGNING OPERATION SCHEDULES OF FFTs AND MIMO-OFDM MODEM THEREOF

摘要

The present invention provides a modulation and demodulation apparatus using the method and a method for designing an operation schedule of the fast Fourier transform unit in the MIMO-OFDM modulation and demodulation unit. ; The present invention, set the operating speed of the FFT to do this, place the received symbols for OFDM placed in the symbol interval, and transmission symbols after reception in the FFT schedule for OFDM symbol interval before the transmission from the FFT schedule, and the FFT scheduled idle fill to insert a symbol in the same transmission time interval to symbol interval, it will be relocated to prevent errors of the deleted symbols with FFT as deleting the schedule to the transmission and reception timing of a symbol time. ; This allows reducing the number of FFT or IFFT computing unit computing the modem apparatus of the MIMO-OFDM system may be kept to a minimum processing delay data. ; MIMO, OFDM, FFT, schedules, share