| Presentation | 2013-03-14 IQ Imbalance Estimation and Compensation Schemes using TFI-OFDM System Hikaru OKA, Chang-Jun AHN, Tatsuya OMORI, Ken-ya HASHIMOTO, |
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| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | A direct- conversion receiver (DCR)reduces the power consumption and cost. However, DCR in Or-thogonal frequency division multiplex (OFDM)systems suffer from IQ imbalance. Until this time, many algorithms are proposed to compensate IQ imbalance in OFDM. However, the complexity is still considerable work. 0n the other hand, time- frequency interferometry-OFDM (TFI-OFDM)system has been proposed to achieve an accurate channel identification property with small number of pilot symbols. In this paper, we propose a novel IQ imbalance estimation and compensation scheme using TFI-OFDM system. In the proposed system, by using the feature of the TFI pilot symbols, we can identify IQ imbalance without high calculation complexity. Furthermore, by using subcarrier selection, the influence of the noise power can be reduced. From the simulation results, the proposed scheme can achieve the low-complexity IQ imbalance estimation and compensation without a degradation of the BER performance. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | OFDM / DCR / IQ imbalance / TFI-OFDM |
| Paper # | CAS2012-97,SIP2012-128,CS2012-103 |
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| Conference Information | |
| Committee | CAS |
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| Conference Date | 2013/3/7(1days) |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | |
| Topics (in Japanese) | (See Japanese page) |
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| Paper Information | |
| Registration To | Circuits and Systems (CAS) |
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| Language | ENG |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | IQ Imbalance Estimation and Compensation Schemes using TFI-OFDM System |
| Sub Title (in English) | |
| Keyword(1) | OFDM |
| Keyword(2) | DCR |
| Keyword(3) | IQ imbalance |
| Keyword(4) | TFI-OFDM |
| 1st Author's Name | Hikaru OKA |
| 1st Author's Affiliation | Faculty of Engineering, Chiba University() |
| 2nd Author's Name | Chang-Jun AHN |
| 2nd Author's Affiliation | Faculty of Engineering, Chiba University |
| 3rd Author's Name | Tatsuya OMORI |
| 3rd Author's Affiliation | Faculty of Engineering, Chiba University |
| 4th Author's Name | Ken-ya HASHIMOTO |
| 4th Author's Affiliation | Faculty of Engineering, Chiba University |
| Date | 2013-03-14 |
| Paper # | CAS2012-97,SIP2012-128,CS2012-103 |
| Volume (vol) | vol.112 |
| Number (no) | 484 |
| Page | pp.pp.- |
| #Pages | 4 |
| Date of Issue | |