• Corpus ID: 236912729

Destination-Feedback Free Distributed Transmit Beamforming using Guided Directionality

@inproceedings{Hanna2021DestinationFeedbackFD,
  title={Destination-Feedback Free Distributed Transmit Beamforming using Guided Directionality},
  author={Samer S. Hanna and Enes Krijestorac and Danijela Cabric},
  year={2021}
}
Distributed transmit beamforming enables cooperative radios to act as one virtual antenna array, extending their communications’ range beyond the capabilities of a single radio. Most existing distributed beamforming approaches rely on the destination radio sending feedback to adjust the transmitters’ signals for coherent combining. However, relying on the destination radio’s feedback limits the communications range to that of a single radio. Existing destination-feedback-free approaches rely on… 
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Distributed Transmit Beamforming: Design and Demonstration from the Lab to UAVs

This work describes the relations between the BF gains distribution, the channel coherence time, and design parameters like the SNR, preamble lengths, and the number of radios to achieve reliable BF gain.

References

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This work describes the relations between the BF gains distribution, the channel coherence time, and design parameters like the SNR, preamble lengths, and the number of radios to achieve reliable BF gain.

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This work demonstrates the recent implementation of distributed beamforming on a standard, open-source, software-defined radio platform, where the low quality oscillators make synchronization particularly challenging.

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Progress is reported on to develop an implementation of distributed transmit beamforming that is based on the receiver providing explicit feedback of channel information to the array nodes using a separate backchannel, allowing for high speed, accurate frequency and phase synchronisation of nodes to build an array as required.

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