| Presentation | 2007-11-27 IQ Imbalance Estimation Scheme in the Presence of DC Offset and Frequency Offset for OFDM Direct Conversion Receivers Mamiko INAMORI, Anas M. BOSTAMAM, Yukitoshi SANADA, Hideki MINAMI, |
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| PDF Download Page |  PDF download Page Link |
| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | OFDM direct conversion architecture gives flexibility and reduces cost and power consumption. However, it may suffer from DC offset, frequency offset, and IQ imbalance. This report presents a IQ imbalance estimation scheme for OFDM direct conversion receivers. The proposed IQ imbalance estimation scheme works in the presence of DC offset and Frequency offset. The proposed scheme employs three preamble symbols and calculates IQ imbalance with 2nd order equation. Evaluation of the presented estimation scheme is carried out on an OFDM communication system designed to the specifications of the IEEE 802.11a/g standard for WLANs. Numerical results through computer simulation show that the proposed frequency offset estimation scheme works well even with large DC offset, Frequency offset, and IQ imbalance. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | Direct Conversion / OFDM / DC Offset / Frequency Offset / IQ Imbalance / Training Sequence |
| Paper # | SR2007-54 |
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| Conference Information | |
| Committee | SR |
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| Conference Date | 2007/11/19(1days) |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | |
| Topics (in Japanese) | (See Japanese page) |
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| Paper Information | |
| Registration To | Software Radio(SR) |
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| Language | JPN |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | IQ Imbalance Estimation Scheme in the Presence of DC Offset and Frequency Offset for OFDM Direct Conversion Receivers |
| Sub Title (in English) | |
| Keyword(1) | Direct Conversion |
| Keyword(2) | OFDM |
| Keyword(3) | DC Offset |
| Keyword(4) | Frequency Offset |
| Keyword(5) | IQ Imbalance |
| Keyword(6) | Training Sequence |
| 1st Author's Name | Mamiko INAMORI |
| 1st Author's Affiliation | Dept. of Electronics and Electrical Engineering, Keio University() |
| 2nd Author's Name | Anas M. BOSTAMAM |
| 2nd Author's Affiliation | Dept. of Electronics and Electrical Engineering, Keio University |
| 3rd Author's Name | Yukitoshi SANADA |
| 3rd Author's Affiliation | Dept. of Electronics and Electrical Engineering, Keio University |
| 4th Author's Name | Hideki MINAMI |
| 4th Author's Affiliation | Sony Corporation |
| Date | 2007-11-27 |
| Paper # | SR2007-54 |
| Volume (vol) | vol.107 |
| Number (no) | 352 |
| Page | pp.pp.- |
| #Pages | 7 |
| Date of Issue | |