Abstract
Distributed beamforming has been recently introduced to enable low-power long-range communication. A whisper communication employing distributed beamforming with power control to increase security is proposed. We discuss and compare several optimizing problems of the beamforming schemes at various scenarios, in order to determine the best transmission scheme obtained to minimize the transmit power under the constraint of given certain SINR set. Furthermore, we present a power and beamformer updating algorithm to implement distributed beamforming. Simulation results show that TDMA_AF outperforms other transmit fashion for single beamforming and RA_AF may be preferable for multibeamforming.
This work is supported by the National Natural Science Foundation of China (No. 60762005, 61062009), the Science and Technology Foundation of Department of Education in Jiangxi Province (No. GJJ10070, GJJ08011).
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© 2011 Springer-Verlag Berlin Heidelberg
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Li, A., Zhang, L., Zhou, Hl., Wang, Yh. (2011). Whisper Communication: Power Control Based Distributed Transmit Beamforming. In: Zeng, D. (eds) Future Intelligent Information Systems. Lecture Notes in Electrical Engineering, vol 86. Springer, Berlin, Heidelberg. https://doi.org/10.1007/978-3-642-19706-2_71
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DOI: https://doi.org/10.1007/978-3-642-19706-2_71
Publisher Name: Springer, Berlin, Heidelberg
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