2017年3月
Low-Complexity Compressed Sensing-Based Channel Estimation With Virtual Oversampling for Digital Terrestrial Television Broadcasting
IEEE Transactions on Broadcasting
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回数 : 118
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- 巻
- 63
- 号
- 1
- 開始ページ
- 82
- 終了ページ
- 91
- 記述言語
- 英語
- 掲載種別
- 研究論文(学術雑誌)
- DOI
- 10.1109/TBC.2016.2606938
- 出版者・発行元
- IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
This paper proposes a low-complexity compressed sensing (CS)-based time domain channel estimation with virtual oversampling for OFDM-based DTTB system. CS technique is first applied to sparse channel estimation in integrated services digital broadcasting-terrestrial (ISDB-T) system. Unfortunately, the CS-based time-domain channel estimation suffers from a performance degradation under the existence of fractional delay. Fractional delay is a common issue in time domain-based channel estimation due to sampling imperfection of channel delay time. Therefore, we propose virtual oversampling to deal with the fractional delay without increasing the signal bandwidth. Furthermore, exploiting the fact that the rate of change of path delay is slower than the path gain, a modified orthogonal matching pursuit is also proposed to reduce computational complexity. Numerical analyses of bit error rate and computational complexity are given to verify effectiveness of the proposed scheme.
- リンク情報
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- DOI
- https://doi.org/10.1109/TBC.2016.2606938
- DBLP
- https://dblp.uni-trier.de/rec/journals/tbc/PadernaDHHO17
- Web of Science
- https://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcAuth=JSTA_CEL&SrcApp=J_Gate_JST&DestLinkType=FullRecord&KeyUT=WOS:000396391000008&DestApp=WOS_CPL
- URL
- https://dblp.uni-trier.de/db/journals/tbc/tbc63.html#PadernaDHHO17
- ID情報
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- DOI : 10.1109/TBC.2016.2606938
- ISSN : 0018-9316
- eISSN : 1557-9611
- DBLP ID : journals/tbc/PadernaDHHO17
- Web of Science ID : WOS:000396391000008