Estimation and compensation of nonideal front-end effects for MB-OFDM based ultra wideband system
Three types of wireless system frontend imperfections, namely carrier frequency offset （CFO）, sampling frequency offset （SFO） and in-phase/quadrature-phase （I/Q） imbalance were addressed. A time-domain CFO and I/Q imbalance estimation and compensation scheme for MB-OFDM based ultra-wideband （UWB） sy...
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| Format: | Article |
| Language: | zho |
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Editorial Department of Journal on Communications
2009-01-01
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| Series: | Tongxin xuebao |
| Subjects: | |
| Online Access: | http://www.joconline.com.cn/zh/article/74652193/ |
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| _version_ | 1841537663950127104 |
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| author | LIU Liang ZHOU Jun YE Fan REN Jun-yan |
| author_facet | LIU Liang ZHOU Jun YE Fan REN Jun-yan |
| author_sort | LIU Liang |
| collection | DOAJ |
| description | Three types of wireless system frontend imperfections, namely carrier frequency offset （CFO）, sampling frequency offset （SFO） and in-phase/quadrature-phase （I/Q） imbalance were addressed. A time-domain CFO and I/Q imbalance estimation and compensation scheme for MB-OFDM based ultra-wideband （UWB） system was proposed. In the scheme, a data-aided CFO estimation algorithm, which was robust to large I/Q imbalance, was presented. Also, a time-domain I/Q imbalance estimation algorithm was introduced. Finally a two-step joint CFO and I/Q imbalance compensation scheme was developed. In frequency domain, a residual CFO and SFO estimation algorithm using the time-domain spreading feature of the UWB frame header was presented. The proposed scheme is competent for large front-end imperfections, and the results are confirmed by simulations. |
| format | Article |
| id | doaj-art-e7f2911032aa4472b8cab27bb6916069 |
| institution | Kabale University |
| issn | 1000-436X |
| language | zho |
| publishDate | 2009-01-01 |
| publisher | Editorial Department of Journal on Communications |
| record_format | Article |
| series | Tongxin xuebao |
| spelling | doaj-art-e7f2911032aa4472b8cab27bb69160692025-01-14T08:27:57ZzhoEditorial Department of Journal on CommunicationsTongxin xuebao1000-436X2009-01-01301774652193Estimation and compensation of nonideal front-end effects for MB-OFDM based ultra wideband systemLIU LiangZHOU JunYE FanREN Jun-yanThree types of wireless system frontend imperfections, namely carrier frequency offset （CFO）, sampling frequency offset （SFO） and in-phase/quadrature-phase （I/Q） imbalance were addressed. A time-domain CFO and I/Q imbalance estimation and compensation scheme for MB-OFDM based ultra-wideband （UWB） system was proposed. In the scheme, a data-aided CFO estimation algorithm, which was robust to large I/Q imbalance, was presented. Also, a time-domain I/Q imbalance estimation algorithm was introduced. Finally a two-step joint CFO and I/Q imbalance compensation scheme was developed. In frequency domain, a residual CFO and SFO estimation algorithm using the time-domain spreading feature of the UWB frame header was presented. The proposed scheme is competent for large front-end imperfections, and the results are confirmed by simulations.http://www.joconline.com.cn/zh/article/74652193/CFOSFOI/Q imbalanceUWB |
| spellingShingle | LIU Liang ZHOU Jun YE Fan REN Jun-yan Estimation and compensation of nonideal front-end effects for MB-OFDM based ultra wideband system Tongxin xuebao CFO SFO I/Q imbalance UWB |
| title | Estimation and compensation of nonideal front-end effects for MB-OFDM based ultra wideband system |
| title_full | Estimation and compensation of nonideal front-end effects for MB-OFDM based ultra wideband system |
| title_fullStr | Estimation and compensation of nonideal front-end effects for MB-OFDM based ultra wideband system |
| title_full_unstemmed | Estimation and compensation of nonideal front-end effects for MB-OFDM based ultra wideband system |
| title_short | Estimation and compensation of nonideal front-end effects for MB-OFDM based ultra wideband system |
| title_sort | estimation and compensation of nonideal front end effects for mb ofdm based ultra wideband system |
| topic | CFO SFO I/Q imbalance UWB |
| url | http://www.joconline.com.cn/zh/article/74652193/ |
| work_keys_str_mv | AT liuliang estimationandcompensationofnonidealfrontendeffectsformbofdmbasedultrawidebandsystem AT zhoujun estimationandcompensationofnonidealfrontendeffectsformbofdmbasedultrawidebandsystem AT yefan estimationandcompensationofnonidealfrontendeffectsformbofdmbasedultrawidebandsystem AT renjunyan estimationandcompensationofnonidealfrontendeffectsformbofdmbasedultrawidebandsystem |