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| Title: | Channel estimation, equalization and phase correction for single carrier underwater acoustic communications | |
| Author (s): | Tao, Jun Zheng, Y. Rosa Xiao, Chengshan Yang, T.C. Yang, Wen-Bin | |
| Department/Lab Affiliations: | Electrical and Computer Engineering Intelligent Systems Center Wireless Communications Lab | |
| Keywords: | Doppler shift channel estimation oceanographic techniques underwater acoustic communication | |
| Issue Date: | 2008-04 | |
| Publisher: | Institute of Electrical and Electronics Engineers IEEE | |
| Citation: | Tao, J., Zheng, Y.R., Xiao, C., Yang, T.C., and Yang, W.B. “Channel estimation, equalization and phase correction for single carrier underwater acoustic communications” MTS/IEEE Kobe Techno-Ocean OCEANS 2008, pp. 1-6. | |
| Abstract: | In this paper, we employ a time-domain channel estimation, equalization and phase correction scheme for single carrier single input multiple output (SIMO) underwater acoustic communications. In this scheme, Doppler shift, which is caused by relative motion between transducer (source) and hydrophones (receiver), is estimated and compensated in the received baseband signals. Then the channel is estimated using a small training block at the front of a transmitted data package, in which the data is artificially partitioned into consecutive data blocks. The estimated channel is utilized to equalize a block of received data, then the equalized data is processed by a group-wise phase correction before data detection. At the end of the detected data block, a small portion of the detected data is utilized to update channel estimation, and the re-estimated channel is employed for channel equalization for next data block. This block-wise channel estimation, equalization and phase correction process is repeated until the entire data package is processed. The receiver scheme is tested with experimental data measured at Saint Margaret's Bay, Nova Scotia, Canada, in May 2006. The results show that it can be applied not only to the scenario of fixed source to fixed receiver, but also to the moving source to fixed receiver case. The achievable uncoded bit error rate (BER) is on the order of 10-4 for moving-to-fixed transmissions, and on the order of 10-5 for fixed-to-fixed transmissions. | |
| Type: | Article - Conference proceedings text | |
| In Title: | MTS/IEEE Kobe Techno-Ocean OCEANS 2008 | |
| Copyright Notice: | This material is presented to ensure timely dissemination of scholarly and technical work. Copyright and all rights therein are retained by authors or by other copyright holders. All persons copying this information are expected to adhere to the terms and constraints invoked by each author's copyright. In most cases, these works may not be reposted without the explicit permission of the copyright holder. allows publisher's final version to be uploaded FULL COPYRIGHT INFORMATION: | |
| Publisher URL: | ||
| Link to this page: | ||
| Full Text: |
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| title | Channel estimation, equalization and phase correction for single carrier underwater acoustic communications | |
| contributor.author | Tao, Jun | |
| contributor.author | Zheng, Y. Rosa | |
| contributor.author | Xiao, Chengshan | |
| contributor.author | Yang, T.C. | |
| contributor.author | Yang, Wen-Bin | |
| contributor.deptlab | Electrical and Computer Engineering | |
| contributor.deptlab | Intelligent Systems Center | |
| contributor.deptlab | Wireless Communications Lab | |
| contributor.sponsor | National Science Foundation | |
| contributor.sponsor | Office of Naval Research | |
| subject | Doppler shift | |
| subject | channel estimation | |
| subject | oceanographic techniques | |
| subject | underwater acoustic communication | |
| date.issued | 2008-04 | |
| publisher | Institute of Electrical and Electronics Engineers IEEE | |
| identifier.citation | Tao, J., Zheng, Y.R., Xiao, C., Yang, T.C., and Yang, W.B. “Channel estimation, equalization and phase correction for single carrier underwater acoustic communications” MTS/IEEE Kobe Techno-Ocean OCEANS 2008, pp. 1-6. | |
| identifier.pub.URI | ||
| description.abstract | In this paper, we employ a time-domain channel estimation, equalization and phase correction scheme for single carrier single input multiple output (SIMO) underwater acoustic communications. In this scheme, Doppler shift, which is caused by relative motion between transducer (source) and hydrophones (receiver), is estimated and compensated in the received baseband signals. Then the channel is estimated using a small training block at the front of a transmitted data package, in which the data is artificially partitioned into consecutive data blocks. The estimated channel is utilized to equalize a block of received data, then the equalized data is processed by a group-wise phase correction before data detection. At the end of the detected data block, a small portion of the detected data is utilized to update channel estimation, and the re-estimated channel is employed for channel equalization for next data block. This block-wise channel estimation, equalization and phase correction process is repeated until the entire data package is processed. The receiver scheme is tested with experimental data measured at Saint Margaret's Bay, Nova Scotia, Canada, in May 2006. The results show that it can be applied not only to the scenario of fixed source to fixed receiver, but also to the moving source to fixed receiver case. The achievable uncoded bit error rate (BER) is on the order of 10-4 for moving-to-fixed transmissions, and on the order of 10-5 for fixed-to-fixed transmissions. | |
| type | Article - Conference proceedings | |
| type.DCMIType | text | |
| type.status | Final version | |
| rights | This material is presented to ensure timely dissemination of scholarly and technical work. Copyright and all rights therein are retained by authors or by other copyright holders. All persons copying this information are expected to adhere to the terms and constraints invoked by each author's copyright. In most cases, these works may not be reposted without the explicit permission of the copyright holder. | |
| rights | allows publisher's final version to be uploaded | |
| rights.URI | ||
| rights.URI | ||
| rights.URI | ||
| relation.isPartOf | MTS/IEEE Kobe Techno-Ocean OCEANS 2008 | |
| date.accessioned | 2008-08-01T16:47:23Z | |
| date.available | 2008-08-05T19:03:40Z | |
| identifier.persist.URI | ||
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