Design and Detection of Multilinear Chirp Signals for Underwater Acoustic Sensor Networks
In Underwater Acoustic Sensor Networks (UW-ASNs), some key problems have attracted more and more attention, including power consumption, performance of multiple access, and complexity of node. Motivated by finding reduced power consumption and improved performance of multiple access in UW-ASNs, a mu...
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| Format: | Article |
| Language: | English |
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Wiley
2015-11-01
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| Series: | International Journal of Distributed Sensor Networks |
| Online Access: | https://doi.org/10.1155/2015/371579 |
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| _version_ | 1832556814722400256 |
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| author | En Cheng Shengli Chen Fei Yuan |
| author_facet | En Cheng Shengli Chen Fei Yuan |
| author_sort | En Cheng |
| collection | DOAJ |
| description | In Underwater Acoustic Sensor Networks (UW-ASNs), some key problems have attracted more and more attention, including power consumption, performance of multiple access, and complexity of node. Motivated by finding reduced power consumption and improved performance of multiple access in UW-ASNs, a multilinear chirp-Code Division Multiple Access (MLC-CDMA) scheme is proposed. The differences between single slope chirp signal and multilinear chirp signal are analyzed in the paper. At the receiving end, a new detection technique called mixing-change rate along with fractional Fourier transform (MCR-FrFT) is proposed to detect the multirate chirp (MRC) signal and reduce complexity of node. There are two steps to realize the detection technique MCR-FrFT. By using the MCR-FrFT, the computation of detection can be decreased to 50% compared with direct FrFT. The simulation results indicate that, using the MCR-FrFT technique, the different users' signal can be separated and detected rapidly. |
| format | Article |
| id | doaj-art-554fa53b52e64b21b87b96021a01f9c0 |
| institution | Kabale University |
| issn | 1550-1477 |
| language | English |
| publishDate | 2015-11-01 |
| publisher | Wiley |
| record_format | Article |
| series | International Journal of Distributed Sensor Networks |
| spelling | doaj-art-554fa53b52e64b21b87b96021a01f9c02025-02-03T05:44:18ZengWileyInternational Journal of Distributed Sensor Networks1550-14772015-11-011110.1155/2015/371579371579Design and Detection of Multilinear Chirp Signals for Underwater Acoustic Sensor NetworksEn ChengShengli ChenFei YuanIn Underwater Acoustic Sensor Networks (UW-ASNs), some key problems have attracted more and more attention, including power consumption, performance of multiple access, and complexity of node. Motivated by finding reduced power consumption and improved performance of multiple access in UW-ASNs, a multilinear chirp-Code Division Multiple Access (MLC-CDMA) scheme is proposed. The differences between single slope chirp signal and multilinear chirp signal are analyzed in the paper. At the receiving end, a new detection technique called mixing-change rate along with fractional Fourier transform (MCR-FrFT) is proposed to detect the multirate chirp (MRC) signal and reduce complexity of node. There are two steps to realize the detection technique MCR-FrFT. By using the MCR-FrFT, the computation of detection can be decreased to 50% compared with direct FrFT. The simulation results indicate that, using the MCR-FrFT technique, the different users' signal can be separated and detected rapidly.https://doi.org/10.1155/2015/371579 |
| spellingShingle | En Cheng Shengli Chen Fei Yuan Design and Detection of Multilinear Chirp Signals for Underwater Acoustic Sensor Networks International Journal of Distributed Sensor Networks |
| title | Design and Detection of Multilinear Chirp Signals for Underwater Acoustic Sensor Networks |
| title_full | Design and Detection of Multilinear Chirp Signals for Underwater Acoustic Sensor Networks |
| title_fullStr | Design and Detection of Multilinear Chirp Signals for Underwater Acoustic Sensor Networks |
| title_full_unstemmed | Design and Detection of Multilinear Chirp Signals for Underwater Acoustic Sensor Networks |
| title_short | Design and Detection of Multilinear Chirp Signals for Underwater Acoustic Sensor Networks |
| title_sort | design and detection of multilinear chirp signals for underwater acoustic sensor networks |
| url | https://doi.org/10.1155/2015/371579 |
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