A high-throughput memory-based FFT/IFFT processor for OFDM systems

Kuang Hao Lin, Che Ying Shen, Shi Yan Huang, Hou Ming Chen, Liang Hung Wang, Shuenn Yuh Lee

研究成果: Conference contribution

1 引文 斯高帕斯(Scopus)

摘要

This study presents a high-throughput memory-based Fast Fourier Transform/Inverse Fast Fourier Transform processor for Orthogonal Frequency Division Multiplexing systems. Modified single-path delay feedback processor is proposed. Compare to original multi-path delay commutator processor, not only the area and power consumption can be reduced, also whole system is easy to dominate. Besides, this new method of calculating twiddle factor decreases the complex coefficients and reduces the ROM usage significantly. Using parallel single-path delay feedback with mixed-radix FFT processor increases the processing speed and achieves the continuity of data throughput. The design is mainly a comparison with multi-path delay commutator processor and single-path delay feedback processor utilizing the base memory method. Introduce the TSMC 0.18um standard cell library; we achieve a 128 point FFT/IFFT processor with high throughput. The operating frequency is up to 50MHz. Besides, the design can be applied to 3GPP LTE and IEEE 802.16e in 1.25MHz bandwidth.

原文English
主出版物標題4th International Symposium on Bioelectronics and Bioinformatics, ISBB 2015
發行者Institute of Electrical and Electronics Engineers Inc.
頁面152-155
頁數4
ISBN(電子)9781467366090
DOIs
出版狀態Published - 2015 十二月 2
事件4th International Symposium on Bioelectronics and Bioinformatics, ISBB 2015 - Beijing, China
持續時間: 2015 十月 142015 十月 17

出版系列

名字4th International Symposium on Bioelectronics and Bioinformatics, ISBB 2015

Other

Other4th International Symposium on Bioelectronics and Bioinformatics, ISBB 2015
國家/地區China
城市Beijing
期間15-10-1415-10-17

All Science Journal Classification (ASJC) codes

  • 健康資訊學
  • 生物技術
  • 訊號處理
  • 電氣與電子工程

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