| Presentation | 2007-05-31 A high-throughput, low-power FFT circuit for OFDM based wireless communication systems Shinsuke USHIKI, Kazunori SHIMIZU, Koichi NAKAMURA, Satoshi GOTO, Takeshi IKENAGA, |
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| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | OFDM attracts attention in digital wireless communication systems. In the FFT circuit which is main processing of digital section in OFDM, a circuit scale and power consumption increase in depending on the number of the carrier waves. However, there is standards carrier waves more than 1024 for a high-performance which becomes a big problem in hardware design. In this paper, we propose a high-throughput, low-power method which gives a good tradeoff between throughput, power dissipation and hardware complexity. Two SRAM and radix4 circuits which are necessary for 1 word memory read/write operation enables the FFT circuits to reduce the number of processing cycles. We implemented FFT circuits based on our proposed method. The proposed architecture can reduce processing cycles by about 88% compared to the comventional circuit. As a result, We can reduce power by about 46% compared to the conventional circuit in the same throughput. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | OFDM / FFT / high-throughput / low-power / memory-access |
| Paper # | ICD2007-26 |
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| Conference Information | |
| Committee | ICD |
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| Conference Date | 2007/5/24(1days) |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | |
| Topics (in Japanese) | (See Japanese page) |
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| Paper Information | |
| Registration To | Integrated Circuits and Devices (ICD) |
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| Language | JPN |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | A high-throughput, low-power FFT circuit for OFDM based wireless communication systems |
| Sub Title (in English) | |
| Keyword(1) | OFDM |
| Keyword(2) | FFT |
| Keyword(3) | high-throughput |
| Keyword(4) | low-power |
| Keyword(5) | memory-access |
| 1st Author's Name | Shinsuke USHIKI |
| 1st Author's Affiliation | Graduate School of Information, Production and Systems, Waseda University() |
| 2nd Author's Name | Kazunori SHIMIZU |
| 2nd Author's Affiliation | School of Science and Engineering, Waseda University |
| 3rd Author's Name | Koichi NAKAMURA |
| 3rd Author's Affiliation | Graduate School of Information, Production and Systems, Waseda University |
| 4th Author's Name | Satoshi GOTO |
| 4th Author's Affiliation | Graduate School of Information, Production and Systems, Waseda University |
| 5th Author's Name | Takeshi IKENAGA |
| 5th Author's Affiliation | Graduate School of Information, Production and Systems, Waseda University |
| Date | 2007-05-31 |
| Paper # | ICD2007-26 |
| Volume (vol) | vol.107 |
| Number (no) | 76 |
| Page | pp.pp.- |
| #Pages | 6 |
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