TY - GEN
T1 - 8K-point pipelined FFT/IFFT with compact memory for DVB-T using block floating-point scaling technique
AU - Kim, Hui Gon
AU - Youn, Jin Soen
AU - Yoon, Ki Tae
AU - Choi, Jun Rim
PY - 2007
Y1 - 2007
N2 - We Propose a 2K/8K point FFT (Fast Fourier Transform) for OFDM (Orthogonal Frequency Division Multiplexing) of DVB-T (Digital Video Broadcast Terrestrial) Receiver. The proposed FFT architecture utilizes cascaded radix-4 Single Path Feedback (SDF) structure based on the Radix-2/Radix-4 FFT algorithm. [11] We use block floating point scaling technique in order to increase SQNJR. The 2K/8K FFT consists of 5 cascaded stages of radix-4 and 3 stages of radix-2 butterfly units. The SQNR of 58dB is achieved with 10-bit data input, 14-bit internal data and twiddle factors, and 18-bit data output. The core has 91,800 gates with 184,284 bits of Ram and 33,572 bits of ROM using 0.18um CMOS technology.
AB - We Propose a 2K/8K point FFT (Fast Fourier Transform) for OFDM (Orthogonal Frequency Division Multiplexing) of DVB-T (Digital Video Broadcast Terrestrial) Receiver. The proposed FFT architecture utilizes cascaded radix-4 Single Path Feedback (SDF) structure based on the Radix-2/Radix-4 FFT algorithm. [11] We use block floating point scaling technique in order to increase SQNJR. The 2K/8K FFT consists of 5 cascaded stages of radix-4 and 3 stages of radix-2 butterfly units. The SQNR of 58dB is achieved with 10-bit data input, 14-bit internal data and twiddle factors, and 18-bit data output. The core has 91,800 gates with 184,284 bits of Ram and 33,572 bits of ROM using 0.18um CMOS technology.
KW - Block floating point
KW - Digital video broadcast territorial
KW - Orthogonal frequency division modulation
KW - Single delay feedback
UR - http://www.scopus.com/inward/record.url?scp=49749145325&partnerID=8YFLogxK
U2 - 10.1109/ITICT.2007.4475614
DO - 10.1109/ITICT.2007.4475614
M3 - Conference contribution
AN - SCOPUS:49749145325
SN - 142441430X
SN - 9781424414307
T3 - 2007 ITI 5th International Conference on Information and Communications Technology, ICICT 2007
SP - 41
EP - 44
BT - 2007 ITI 5th International Conference on Information and Communications Technology, ICICT 2007
T2 - 2007 ITI 5th International Conference on Information and Communications Technology, ICICT 2007
Y2 - 16 December 2007 through 18 December 2007
ER -