High-speed, low cost parallel memory-based FFT processors for OFDM applications

Chin Long Wey, Shin Yo Lin, Wei Chien Tang, Muh Tien Shiue

研究成果: 書貢獻/報告類型會議論文篇章同行評審

9 引文 斯高帕斯(Scopus)

摘要

Low cost yet efficient FFT (Fast Fourier Transform) processors are greatly needed for real-time operation in many OFDM applications. Taking the advantages of both memory-based and pipelined FFT architectures, this paper presents simple radix-2 memory-based FFT (MBFFT) Processors with low hardware cost and high maximum operation frequency. Results show that the core area of the proposed MBFFT is 1.79mm2 with the maximum operation frequency of 205MHz, or a process speed of 269μs for N=8192 points (24 bits per word). This also implies a throughput of 730 Mb/s (Mbits per second). This paper also presents parallel MBFFT structures with two and four butterfly processing elements (PEs), respectively, to improve the latency while still keeping low hardware cost and high maximum operation frequency.

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主出版物標題ICECS 2007 - 14th IEEE International Conference on Electronics, Circuits and Systems
頁面783-787
頁數5
DOIs
出版狀態已出版 - 2007
事件14th IEEE International Conference on Electronics, Circuits and Systems, ICECS 2007 - Marrakech, Morocco
持續時間: 11 12月 200714 12月 2007

出版系列

名字Proceedings of the IEEE International Conference on Electronics, Circuits, and Systems

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???event.eventtypes.event.conference???14th IEEE International Conference on Electronics, Circuits and Systems, ICECS 2007
國家/地區Morocco
城市Marrakech
期間11/12/0714/12/07

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