Precoding Based Channel Prediction for Underwater Acoustic OFDM
The life duration of underwater cooperative network has been the hot topic in recent years. And the problem of node energy consuming is the key technology to maintain the energy balance among all nodes. To ensure energy efficiency of some special nodes and obtain a longer lifetime of the underwater...
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| Veröffentlicht in: | China ocean engineering 2017-04, Vol.31 (2), p.256-260 |
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| creator | Cheng, En Lin, Na Sun, Hai-xin Yan, Jia-quan Qi, Jie |
| description | The life duration of underwater cooperative network has been the hot topic in recent years. And the problem of node energy consuming is the key technology to maintain the energy balance among all nodes. To ensure energy efficiency of some special nodes and obtain a longer lifetime of the underwater cooperative network, this paper focuses on adopting precoding strategy to preprocess the signal at the transmitter and simplify the receiver structure. Meanwhile, it takes into account the presence of Doppler shifts and long feedback transmission delay in an underwater acoustic communication system. Precoding technique is applied based on channel prediction to realize energy saving and improve system performance. Different precoding methods are compared. Simulated results and experimental results show that the proposed scheme has a better performance, and it can provide a simple receiver and realize energy saving for some special nodes in a cooperative communication. |
| doi_str_mv | 10.1007/s13344-017-0030-5 |
| format | Article |
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And the problem of node energy consuming is the key technology to maintain the energy balance among all nodes. To ensure energy efficiency of some special nodes and obtain a longer lifetime of the underwater cooperative network, this paper focuses on adopting precoding strategy to preprocess the signal at the transmitter and simplify the receiver structure. Meanwhile, it takes into account the presence of Doppler shifts and long feedback transmission delay in an underwater acoustic communication system. Precoding technique is applied based on channel prediction to realize energy saving and improve system performance. Different precoding methods are compared. 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| fulltext | fulltext |
| identifier | ISSN: 0890-5487 |
| ispartof | China ocean engineering, 2017-04, Vol.31 (2), p.256-260 |
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| language | eng |
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| source | SpringerNature Journals; Alma/SFX Local Collection |
| subjects | Coastal Sciences Communication Communications systems Doppler sonar Duration Energy balance Energy conservation Energy efficiency Engineering Fluid- and Aerodynamics Marine & Freshwater Sciences Numerical and Computational Physics Oceanography Offshore Engineering Simulation Technical Notes Underwater Underwater communication |
| title | Precoding Based Channel Prediction for Underwater Acoustic OFDM |
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