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Pilot-based channel estimation for AF relaying using energy harvesting
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Chen, Yunfei, Feng, Wei, Shi, Rui and Ge, Ning (2017) Pilot-based channel estimation for AF relaying using energy harvesting. IEEE Transactions on Vehicular Technology . doi:10.1109/TVT.2017.2654364
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WRAP-pilot-based-channel-estimation-AF-relaying-Chen-2017.pdf - Accepted Version - Requires a PDF viewer. Download (697Kb) | Preview |
Official URL: http://doi.org/10.1109/TVT.2017.2654364
Abstract
In existing channel estimators for amplify-andforward relaying, pilots are often sent from the relay to the destination which consumes the relay’s own energy. This limits the relay’s participation in the network. In this paper, several moment-based channel estimators for amplify-and-forward relaying are proposed that harvest energy from the source and using the harvested energy to send pilots to the destination for channel estimation. Both time-switching and power-splitting strategies are considered. Numerical results show that the two schemes that perform channel estimation only at the destination have worse performances than the two schemes that perform channel estimation at both the relay and the destination. They also show that the bit error rate performances of all schemes are close to the perfect case when exact knowledge of the channel state information is available such that there is no channel estimation error in the demodulation. The assumption that the two schemes only perform channel estimation at the destination makes them simpler, as they do not require channel estimation at the relay or feed the channel estimate back to the destination.
| Item Type: | Journal Article | ||||||
|---|---|---|---|---|---|---|---|
| Subjects: | T Technology > TK Electrical engineering. Electronics Nuclear engineering | ||||||
| Divisions: | Faculty of Science > Engineering | ||||||
| Library of Congress Subject Headings (LCSH): | Energy harvesting., Wireless communication systems ., Radio relay systems. | ||||||
| Journal or Publication Title: | IEEE Transactions on Vehicular Technology | ||||||
| Publisher: | IEEE | ||||||
| ISSN: | 0018-9545 | ||||||
| Official Date: | 17 January 2017 | ||||||
| Dates: |
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| Date of first compliant deposit: | 17 January 2017 | ||||||
| DOI: | 10.1109/TVT.2017.2654364 | ||||||
| Status: | Peer Reviewed | ||||||
| Publication Status: | Published | ||||||
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