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Time domain modulation method based on channel encryption

A modulation method and time-domain technology, applied in channel estimation, wireless communication, security communication devices, etc., can solve the problems that it is difficult to prevent the enemy from eavesdropping on the signal, and the eavesdropper cannot decode correctly, so as to reduce the probability of information interception , Reduce the probability of information being intercepted, and improve the effect of confidentiality performance

Active Publication Date: 2020-02-14
NO 54 INST OF CHINA ELECTRONICS SCI & TECH GRP
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Within this range, it is difficult for the communication system to prevent the enemy from approaching and eavesdropping on the signal
Traditional security technology improves security performance by encrypting information at the source, and eavesdroppers cannot decode it correctly without knowing the key.

Method used

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  • Time domain modulation method based on channel encryption
  • Time domain modulation method based on channel encryption
  • Time domain modulation method based on channel encryption

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Embodiment Construction

[0026] Below in conjunction with accompanying drawing, the present invention is described in further detail:

[0027] figure 1 It is a schematic diagram of the composition of the distributed communication system, wherein the distributed communication is composed of multiple distributed nodes and a central processing node (information processing center); the communication target can be a single user or multiple users. Distributed transceiver nodes mainly implement signal transmission and reception. Each transceiver node can be a separate antenna unit or include a preprocessing unit for preliminary signal processing; the information processing center mainly realizes joint processing of multi-node signals, including beamforming, Modulation and demodulation and upper-level signal processing; the information processing center can be composed of a high-performance central processing station, or a distributed cloud computing platform; the distributed communication system can use all ...

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Abstract

The invention discloses a time domain modulation method based on channel encryption, which combines channel encryption and time domain modulation to realize a physical layer security scheme, and relates to a physical layer security algorithm in distributed wireless communication. According to the scheme, a distributed communication system communicates with a target node through distributed nodes,channel information of the distributed nodes and the target node is estimated and quantized, then a receiving party and a sending party generate secret keys according to the channel quantization information, and encryption is conducted by using the secret keys as time domain modulation parameters to achieve physical layer safety communication. The scheme can be applied to a distributed communication system, the safety of wireless communication is improved from a physical layer, and the interception probability of enemies to our information is effectively reduced.

Description

technical field [0001] The invention relates to a time-domain modulation method for channel encryption, which can improve the security of a distributed / large-scale distributed wireless communication system, and reduce the information interception probability of eavesdroppers from the physical layer. The invention can be used independently or in combination with other information source encryption means to build a safe and reliable distributed / large-scale distributed wireless communication system and improve the confidentiality performance of wireless communication. Background technique [0002] In a distributed communication system, each node is distributed within a range of several kilometers or even tens of kilometers. Within this range, it is difficult for the communication system to prevent the enemy from approaching and eavesdropping on the signal. Traditional security technology improves security performance by encrypting information at the source, and eavesdroppers c...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04W12/00H04W12/04H04L9/08H04L25/02H04L29/08H04W12/03H04W12/041
CPCH04W12/04H04L9/0838H04L9/085H04L25/0202H04L67/1097H04W12/03Y02D30/70
Inventor 张金波赵玉超焦利彬王栋良张航韩旸子冯彐然杨博
Owner NO 54 INST OF CHINA ELECTRONICS SCI & TECH GRP
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