Distributed safe beamforming method and device based on feedback control

A beamforming and feedback control technology, applied in the field of communication, can solve problems such as the inability to realize distributed secure communication

Active Publication Date: 2017-12-05
SHENZHEN UNIV
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  • Claims
  • Application Information

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Problems solved by technology

This method can achieve phase synchronization from the transmitter device to the receiver device through single-bit information under limited feedback channel capacity, but the existing single-bit phase synchronization method is only suitable for reliable communication environments
When there is an eavesdropping device in the environment to steal information, this method cannot achieve distributed secure communication

Method used

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  • Distributed safe beamforming method and device based on feedback control
  • Distributed safe beamforming method and device based on feedback control
  • Distributed safe beamforming method and device based on feedback control

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Embodiment Construction

[0071] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0072] It should be noted that the terms "first" and "second" in the specification and claims of the present invention and the above drawings are used to distinguish different objects, rather than to describe a specific order. Furthermore, the terms "include" and "have", as well as any variations thereof, are intended to cover a non-exclusive inclusion. For example, a process, method, system, product or device comprising a series of steps or unit...

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Abstract

The invention provides a distributed safe beamforming method and a device based on feedback control. The method comprises steps: feedback signals sent by a receiving-end device are received, wherein the feedback signals are used for indicating whether a first signal to interference and noise ratio (SINR) of the receiving-end device at an nth time slot is enhanced in relative to a second SINR stored by the receiving-end device at the nth time slot; and according to the feedback signals, relevant parameters of a transmission weight of first manual noise signals transmitted at an (n+1)th time slot are adjusted, wherein the relevant parameters comprise a transmission phase, a correction factor and random disturbance. Thus, distributed safe communication can be realized, and meanwhile, the secrecy performance of the distributed safe communication system is enhanced.

Description

technical field [0001] The present invention relates to the field of communication technology, in particular to a feedback control-based distributed safety beamforming method and device. Background technique [0002] Distributed Beamforming (Distributed Beamforming) is a cooperative communication technology. Multiple transmitter devices send the same information to the target device, and by controlling the transmission phase of the transmitter device, the signals of multiple transmitter devices are transmitted to the target device. devices are efficiently merged. [0003] In recent years, phase synchronization algorithms using only single-bit feedback information have been proposed and widely studied. This method can achieve phase synchronization from the transmitter device to the receiver device through single-bit information under limited feedback channel capacity, but the existing single-bit phase synchronization method is only suitable for reliable communication environ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04B7/06H04L5/00H04L29/06H04B17/336
CPCH04B7/0617H04B7/0621H04B17/336H04L5/0078H04L63/0428
Inventor 谢宁徐凯
Owner SHENZHEN UNIV
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