Simultaneous Information and Power Transfer with Transmitters with Hardware Impairments
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| Titel: | Simultaneous Information and Power Transfer with Transmitters with Hardware Impairments |
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| Autoren: | Ozcelikkale, Ayca, 1982, McKelvey, Tomas, 1966, Viberg, Mats, 1961 |
| Quelle: | Proceedings of the International Symposium on Wireless Communication Systems. 2016-October:114-118 |
| Schlagwörter: | simultaneous information and power transfer, energy transfer, RF energy harvesting, beamforming, energy harvesting, hardware impairments, linear precoder design, non-ideal hardware, wireless power transfer |
| Beschreibung: | We investigate the performance of a communication system with simultaneous wireless information and power transfer capabilities under non-ideal transmitter hardware. We adopt an experimentally validated additive noise model in which the level of the noise at an antenna is proportional to the signal power at that antenna. We consider the linear precoder design problem and focus on the problem of minimizing the mean-square error under energy harvesting constraints. This set-up, in general, constitutes a non-convex formulation. For the single antenna information user case, we provide a tight convex relaxation, i.e. a convex formulation from which an optimal solution for the original problem can be constructed. For the general case, we propose a block coordinate descent technique to solve the resulting non-convex problem. Our numerical results illustrate the effect of hardware impairments on the system. |
| Dateibeschreibung: | electronic |
| Zugangs-URL: | https://research.chalmers.se/publication/240848 http://publications.lib.chalmers.se/records/fulltext/240848/local_240848.pdf |
| Datenbank: | SwePub |
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Nájsť tento článok vo Web of Science | Abstract: | We investigate the performance of a communication system with simultaneous wireless information and power transfer capabilities under non-ideal transmitter hardware. We adopt an experimentally validated additive noise model in which the level of the noise at an antenna is proportional to the signal power at that antenna. We consider the linear precoder design problem and focus on the problem of minimizing the mean-square error under energy harvesting constraints. This set-up, in general, constitutes a non-convex formulation. For the single antenna information user case, we provide a tight convex relaxation, i.e. a convex formulation from which an optimal solution for the original problem can be constructed. For the general case, we propose a block coordinate descent technique to solve the resulting non-convex problem. Our numerical results illustrate the effect of hardware impairments on the system. |
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| ISBN: | 1509020616 9781509020614 |
| ISSN: | 21540217 21540225 |
| DOI: | 10.1109/ISWCS.2016.7600885 |