A variable-length FFT processor for 4×4 MIMO-OFDM systems

@article{Hung2010AVF,
  title={A variable-length FFT processor for 4×4 MIMO-OFDM systems},
  author={C. Y. Hung and P. F. Chiu and Yuan-Hao Huang},
  journal={Proceedings of 2010 International Symposium on VLSI Design, Automation and Test},
  year={2010},
  pages={156-159}
}
In this paper, we present a 128∼2048-point variable-length FFT processor for 4×4 MIMO-OFDM systems. In general, we must use n FFT processors for the n×n MIMO-OFDM system, and only 1/r operation time is employed for radix-r pipeline butterfly processor. This increases hardware cost and reduces hardware efficiency in VLSI implementation. Therefore, we propose radix-42 algorithm to deal with four data sequences simultaneously and a butterfly sharing technique to improve the hardware utilization… CONTINUE READING

References

Publications referenced by this paper.
Showing 1-9 of 9 references

A low-power 64-point FFT/IFFT design for IEEE 802.11a WLAN application

  • C. T. Lin, Y. C. Yu, L. D. Fan
  • Proc. IEEE ISCAS ’06., May 2006, pp. 4523–4526.
  • 2006
1 Excerpt

Designing pipeline FFT processor for OFDM (de)modulation

  • S. He, M. Torkelson
  • Proc. IEEE ISSSE ’98., 1998, pp. 257–262.
  • 1998
1 Excerpt

A low - power 64 - point FFT / IFFT design for IEEE 802 . 11 a WLAN application A low - power , high - performance , 1024 - point FFT proces

  • Y. C. Yu, L. D. Fan
  • IEEE Journal on Solid - State Circuits

Similar Papers

Loading similar papers…