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Simulation Results according to Bit Truncation in 4k-FFT Algorithm
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- Authors
- Sang-Jung Ra, Dong-Joon Choi, Namho Hur, Cheol-Sung Kim
- Issue Date
- 2012-10
- Citation
- International Conference on Information and Communication Technology Convergence (ICTC) 2012, pp.187-190
- Publisher
- IEEE
- Language
- English
- Type
- Conference Paper
- Abstract
- In this paper, we present an efficient design and implementation of FFT algorithm which is an important part of OFDM system. 4k-FFT algorithm is proposed and implemented in field programmable gate arrays (FPGAs). We measure the quantization error of FFT algorithm. Measured results show the maximum quantization error of 6.793259/5.662575 (real/imaginary value in 12 stage MSB truncation), 3.112945/2.627586 (real/imaginary value in 12 stage LSB truncation), 0.000756/0.000458 (real/imaginary value in 6 stage LSB/6 stage MSB truncation). © 2012 IEEE.
- KSP Keywords
- 4K-FFT, FFT algorithm, Field-Programmable Gate Array(FPGA), OFDM systems, Quantization Error, design and implementation, efficient design, simulation results