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Method and system for improving MISO security communication system safety rate by means of artificial noise

A technology of artificial noise and system security, applied in the field of physical layer security of wireless communication, can solve problems such as difficult to find

Active Publication Date: 2016-04-13
ELECTRIC POWER RESEARCH INSTITUTE, CHINA SOUTHERN POWER GRID CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

All wireless transmissions in the area can be intercepted by anyone with the right receiving equipment, and such interception is extremely difficult to detect

Method used

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  • Method and system for improving MISO security communication system safety rate by means of artificial noise
  • Method and system for improving MISO security communication system safety rate by means of artificial noise
  • Method and system for improving MISO security communication system safety rate by means of artificial noise

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Embodiment Construction

[0085] The system model used in the present invention is as figure 1 As shown, it includes a multi-antenna transmitting end, a legal information receiving end, an energy receiving end and an eavesdropping receiving end. Among them, the transmitting end has N antennas, and the legitimate information receiving end, energy receiving end and eavesdroppers only have a single antenna. This system model is also typical in real environments, such as wireless sensor network nodes powered by batteries in an open environment, and some key nodes in these nodes require that the information sent cannot be intercepted by potential eavesdroppers in the surrounding environment Steal, and require batteries to last for a long time. Among them, the channel from the sending end to the information receiving end is called the information channel, which is used Indicates that the channel from the sender to the energy receiver is called an energy channel, and is expressed by Indicates that the ch...

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Abstract

The invention relates to a method and system for improving MISO security communication system safety rate by means of artificial noise. According to the method, for the condition that a legitimate user and an eavesdropper are in the same system, a sending end generates the artificial noise in the specific direction in the space, for example, generates the artificial noise along the channel direction of the eavesdropper to interfere the eavesdropper. In this way, by means of the channel state information of the eavesdropping channel, the method generates the artificial noise only interfering the eavesdropper instead of the artificial noise in the whole zero space of the legitimate channel, so that the interference to the eavesdropper can be effectively carried out, and the information eavesdropping can be prevented.

Description

technical field [0001] The invention relates to the physical layer security field of wireless communication, in particular to a method and a system for improving the security rate of a MISO security communication system by using artificial noise. Background technique [0002] Wireless communication technology has been integrated into every part of people's life, bringing great changes to people's work and life. While enjoying the convenience brought by wireless communication technology, people are also facing various troubles. Among them, secure communication is a huge challenge for wireless communication. As more and more personal and business information is transmitted over wireless communication networks, information security becomes more and more important. The broadcast nature of wireless communication makes it relatively easy to eavesdrop or even intercept information. All wireless transmissions in the area can be intercepted by anyone with the right receiving equip...

Claims

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Application Information

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IPC IPC(8): H04W12/02H04L25/02
CPCH04L25/0204H04L25/021H04W12/02
Inventor 黄建理郭晓斌许爱东董旭柱陈华军陈富汉陈立明杨航吴争荣袁小凯张乾坤黄文琦
Owner ELECTRIC POWER RESEARCH INSTITUTE, CHINA SOUTHERN POWER GRID CO LTD
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