Split-radix FFT pruning for the reduction of computational complexity in OFDM based Cognitive Radio system

@article{Xu2010SplitradixFP,
  title={Split-radix FFT pruning for the reduction of computational complexity in OFDM based Cognitive Radio system},
  author={Yihu Xu and Myoung-Seob Lim},
  journal={Proceedings of 2010 IEEE International Symposium on Circuits and Systems},
  year={2010},
  pages={69-72}
}
It is necessary to devise the efficient FFT algorithm which can reduce computational complexity due to multiplication in the butterfly structure with twiddle factors in the OFDM based Cognitive Radio, where zero valued inputs/outputs outnumber nonzero inputs/outputs. Now transformed decomposition is considered as more suitable candidate than FFT pruning method for OFDM based Cognitive Radio due to the feasibility of HW design about irregular position of zero inputs/outputs. However, with the… CONTINUE READING
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