Power-efficient continuous-flow memory-based FFT processor for WiMax OFDM mode

Pei Yun Tsai, Tsung Hsueh Lee, Tzi Dar Chiueh

研究成果: 書貢獻/報告類型會議論文篇章同行評審

8 引文 斯高帕斯(Scopus)

摘要

This paper presents a fast Fourier transform (FFT) processor suitable for IEEE 802.16e (WiMax) OFDM mode. FFT/IFFT processors are very crucial in OFDM transceivers and they usually consume considerable power as well as occupy large area. The proposed FFT processor combines the pipelined architecture and the memory-based architecture so that it can operate at the sample rate and thus achieve power efficiency. The processor is based on the multipath delay commutator architecture with high-radix arithmetic units and two main memories for input buffering, intermediate storage, and output reordering. A proposed conflict-free memory addressing strategy makes possible continuous-flow FFT processing. Simulation results show that it achieves a 29% saving in power consumption.

原文???core.languages.en_GB???
主出版物標題2006 International Symposium on Intelligent Signal Processing and Communications, ISPACS'06
發行者Institute of Electrical and Electronics Engineers Inc.
頁面622-625
頁數4
ISBN(列印)0780397339, 9780780397330
DOIs
出版狀態已出版 - 2006
事件2006 International Symposium on Intelligent Signal Processing and Communications, ISPACS'06 - Yonago, Japan
持續時間: 12 12月 200615 12月 2006

出版系列

名字2006 International Symposium on Intelligent Signal Processing and Communications, ISPACS'06

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???event.eventtypes.event.conference???2006 International Symposium on Intelligent Signal Processing and Communications, ISPACS'06
國家/地區Japan
城市Yonago
期間12/12/0615/12/06

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