| Presentation | 2011-03-04 Reducing Power Dissipation in Wireless OFDM Baseband Receiver Using Wordlength Calibration Jaeseong KIM, Shingo YOSHIZAWA, Yoshikazu MIYANAGA, |
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| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | OFDM baseband is performed by digital signal processing systems such as FFT. An operation wordlength is one of important factors which affect circuit area and power consumption performance in digital circuits. In LSI design, a large wordlength is adopted to assume a dynamic range of signal inputs, however it could decrease for small dynamic range environments. We use a variable wordlength architecture which can dynamically change a wordlength for power reduction. This paper proposes a wordlength calibration technique to optimize wordlengths of a FFT processor and a Viterbi decoder simultaneously. It has achieved the power reduction up to 24% with satisfying required communication quality. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | Variable wordlength / OFDM / Wireless communication / low power / VLSI architecture |
| Paper # | SIS2010-63 |
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| Conference Information | |
| Committee | SIS |
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| Conference Date | 2011/2/24(1days) |
| Place (in Japanese) | (See Japanese page) |
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| Topics (in Japanese) | (See Japanese page) |
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| Registration To | Smart Info-Media Systems (SIS) |
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| Language | ENG |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | Reducing Power Dissipation in Wireless OFDM Baseband Receiver Using Wordlength Calibration |
| Sub Title (in English) | |
| Keyword(1) | Variable wordlength |
| Keyword(2) | OFDM |
| Keyword(3) | Wireless communication |
| Keyword(4) | low power |
| Keyword(5) | VLSI architecture |
| 1st Author's Name | Jaeseong KIM |
| 1st Author's Affiliation | Laboratory of Information Communication Networks, Graduate School of Information Science and Technology, Hokkaido University() |
| 2nd Author's Name | Shingo YOSHIZAWA |
| 2nd Author's Affiliation | Laboratory of Information Communication Networks, Graduate School of Information Science and Technology, Hokkaido University |
| 3rd Author's Name | Yoshikazu MIYANAGA |
| 3rd Author's Affiliation | Laboratory of Information Communication Networks, Graduate School of Information Science and Technology, Hokkaido University |
| Date | 2011-03-04 |
| Paper # | SIS2010-63 |
| Volume (vol) | vol.110 |
| Number (no) | 445 |
| Page | pp.pp.- |
| #Pages | 6 |
| Date of Issue | |