TY  - JOUR
T1  - Design of 128-Point FFT using Mixed Radix with Combined SDF-SDC
Structure for OFDM Application
AU - Manikandan, G. AU - Anand, M. 
JO  - Journal of Engineering and Applied Sciences
VL  - 12
IS  - 21
SP  - 5423
EP  - 5428
PY  - 2017
DA  - 2001/08/19
SN  - 1816-949x
DO  - jeasci.2017.5423.5428
UR  - https://makhillpublications.co/view-article.php?doi=jeasci.2017.5423.5428
KW  - Single path Delay Commutator  (SDC)
KW  -Mixed Radix-2 and Radix-4
KW  -Single path Delay Feedback (SDF)
KW  -Xilinx plan-ahead 12.4
KW  -ModelSim
AB  - Fast Fourier Transform (FFT) is one of the major operations in any communication system. The
efficiency of the communication system is depends on the internal process (FFT/IFFT) of the system. In this
study, designed a VLSI based 128-point mixed radix with combined Single path Delay Feedback (SDF) Single
path Delay Commutator (SDC) FFT structure. The mixed Radix-2 and Radix-4 FFT architecture provide fast
computation during the process. Combined SDF-SDC dataflow structure has different advantages, SDF
structure is used to improving the speed of the process and the SDC structure is used to reducing the area
(LUTs and slices) utilization and also reducing the power consumed by the processor. Because of these
advantages only combined the both structure and get the efficient performance of the FFT architecture. The
proposed architecture is applied into the OFDM communication system for speed transmission. Simulation of
the proposed architecture is done by using ModelSim simulation environment. The performance can be
analyzed and validated by Xilinx plan-ahead 12.4 tool.
ER  -