Estimation and compensation for transmitter and receiver I/Q imbalance of full-duplex terminals
In order to reduce I/Q imbalance of the full-duplex terminal with direct-conversion transceiver,an algorithm based on self-interference signal was proposed for the estimation and compensation of I/Q imbalance in both transmitter (Tx) and receiver (Rx).Without the perfect transmitter or receiver for...
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| Format: | Article |
| Language: | zho |
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Editorial Department of Journal on Communications
2017-01-01
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| Series: | Tongxin xuebao |
| Subjects: | |
| Online Access: | http://www.joconline.com.cn/zh/article/doi/10.11959/j.issn.1000-436x.2017016/ |
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| _version_ | 1841539510894067712 |
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| author | Hao-wei WU Jun-bo ZHAO Hao-ran XU Jing-lan OU |
| author_facet | Hao-wei WU Jun-bo ZHAO Hao-ran XU Jing-lan OU |
| author_sort | Hao-wei WU |
| collection | DOAJ |
| description | In order to reduce I/Q imbalance of the full-duplex terminal with direct-conversion transceiver,an algorithm based on self-interference signal was proposed for the estimation and compensation of I/Q imbalance in both transmitter (Tx) and receiver (Rx).Without the perfect transmitter or receiver for I/Q imbalance estimation,the self-interference signal from Tx chain to Rx chain was used for parameter estimation and separation,and the Tx and Rx I/Q imbalance parameters were obtained,respectively.Then the pre-compensation before transmission and the correction after receiving was processed,so that there was nearly no I/Q imbalance in this full-duplex terminal from the view of the other terminals,and the complexity of the signal processing will be reduced as a result of the absent of the I/Q imbalance estimation.The simulation results show that the proposed algorithm can effectively estimate and compensate the I/Q imbalance of the full-duplex Tx ＆ Rx terminal,and improve the overall signal quality and the system performance. |
| format | Article |
| id | doaj-art-6d0bcc2268194b2d9f035f0e826ddc10 |
| institution | Kabale University |
| issn | 1000-436X |
| language | zho |
| publishDate | 2017-01-01 |
| publisher | Editorial Department of Journal on Communications |
| record_format | Article |
| series | Tongxin xuebao |
| spelling | doaj-art-6d0bcc2268194b2d9f035f0e826ddc102025-01-14T07:11:30ZzhoEditorial Department of Journal on CommunicationsTongxin xuebao1000-436X2017-01-013814114859706872Estimation and compensation for transmitter and receiver I/Q imbalance of full-duplex terminalsHao-wei WUJun-bo ZHAOHao-ran XUJing-lan OUIn order to reduce I/Q imbalance of the full-duplex terminal with direct-conversion transceiver,an algorithm based on self-interference signal was proposed for the estimation and compensation of I/Q imbalance in both transmitter (Tx) and receiver (Rx).Without the perfect transmitter or receiver for I/Q imbalance estimation,the self-interference signal from Tx chain to Rx chain was used for parameter estimation and separation,and the Tx and Rx I/Q imbalance parameters were obtained,respectively.Then the pre-compensation before transmission and the correction after receiving was processed,so that there was nearly no I/Q imbalance in this full-duplex terminal from the view of the other terminals,and the complexity of the signal processing will be reduced as a result of the absent of the I/Q imbalance estimation.The simulation results show that the proposed algorithm can effectively estimate and compensate the I/Q imbalance of the full-duplex Tx ＆ Rx terminal,and improve the overall signal quality and the system performance.http://www.joconline.com.cn/zh/article/doi/10.11959/j.issn.1000-436x.2017016/full-duplexself-interference signalI/Q imbalanceestimationcompensation |
| spellingShingle | Hao-wei WU Jun-bo ZHAO Hao-ran XU Jing-lan OU Estimation and compensation for transmitter and receiver I/Q imbalance of full-duplex terminals Tongxin xuebao full-duplex self-interference signal I/Q imbalance estimation compensation |
| title | Estimation and compensation for transmitter and receiver I/Q imbalance of full-duplex terminals |
| title_full | Estimation and compensation for transmitter and receiver I/Q imbalance of full-duplex terminals |
| title_fullStr | Estimation and compensation for transmitter and receiver I/Q imbalance of full-duplex terminals |
| title_full_unstemmed | Estimation and compensation for transmitter and receiver I/Q imbalance of full-duplex terminals |
| title_short | Estimation and compensation for transmitter and receiver I/Q imbalance of full-duplex terminals |
| title_sort | estimation and compensation for transmitter and receiver i q imbalance of full duplex terminals |
| topic | full-duplex self-interference signal I/Q imbalance estimation compensation |
| url | http://www.joconline.com.cn/zh/article/doi/10.11959/j.issn.1000-436x.2017016/ |
| work_keys_str_mv | AT haoweiwu estimationandcompensationfortransmitterandreceiveriqimbalanceoffullduplexterminals AT junbozhao estimationandcompensationfortransmitterandreceiveriqimbalanceoffullduplexterminals AT haoranxu estimationandcompensationfortransmitterandreceiveriqimbalanceoffullduplexterminals AT jinglanou estimationandcompensationfortransmitterandreceiveriqimbalanceoffullduplexterminals |