Title :
A Novel Approach of Implementing an FFT Algorithm on OFDM System
Author :
Imtiaz, Nafiz ; Azim, Anwarul ; Shafik, Rishad Ahmed ; Muhammad
Author_Institution :
Dept. of Electr. & Electron. Eng., Islamic Univ. of Technol., Gazipur
Abstract :
In this paper, we make insightful assessment of the computational performance of orthogonal frequency division multiplexing (OFDM) system in terms of complex calculations required using different Fourier transform techniques. We briefly introduce the different transform technique, viz. discrete Fourier transform (DFT) and various types of fast Fourier transform (FFT) as 2-radix FFT, 4-radix FFT etc. We have also discussed about a new FFT approach that can be applied in an OFDM system and shown comparison of it with other FFT techniques.
Keywords :
OFDM modulation; discrete Fourier transforms; FFT algorithm; OFDM system; discrete Fourier transform; fast Fourier transform; orthogonal frequency division multiplexing; Demodulation; Digital modulation; Discrete Fourier transforms; Fading; Fast Fourier transforms; Fourier transforms; Frequency division multiplexing; OFDM modulation; Protection; Signal processing;
Conference_Titel :
Wireless Communications, Networking and Mobile Computing, 2007. WiCom 2007. International Conference on
Conference_Location :
Shanghai
Print_ISBN :
978-1-4244-1311-9
DOI :
10.1109/WICOM.2007.21