Multi-user collaboration jamming power distribution method under restraint of confidentiality interrupt probability

A technology of multi-user cooperation and interference power, which is applied in the field of multi-user cooperation interference power allocation, and can solve problems such as not applicable to cellular mobile communication

Active Publication Date: 2015-04-29
XI AN JIAOTONG UNIV
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  • Abstract
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Problems solved by technology

[0005] The purpose of the present invention is to provide a multi-user cooperative interference power allocation method under the constraint of confidentiality interruption probabilit

Method used

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  • Multi-user collaboration jamming power distribution method under restraint of confidentiality interrupt probability
  • Multi-user collaboration jamming power distribution method under restraint of confidentiality interrupt probability
  • Multi-user collaboration jamming power distribution method under restraint of confidentiality interrupt probability

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Embodiment Construction

[0021] Such as figure 1 As shown, the communication system model that the present invention adopts comprises: K single-antenna transmitting ends, respectively Alice-1, ..., Alice-K, a single-antenna expected receiving end Bob and a single-antenna eavesdropping end Eve, transmitting user Alice -1 forms a communication pair with the expected receiver Bob. Remember h B,i is the channel coefficient from Alice-i to Bob, h E,i Indicates the channel coefficient from Alice-i to Eve, assuming that the wireless channel fades slowly and is modeled as quasi-static Rayleigh fading, h B,i and h E,i are independent of each other, and all obey the complex Gaussian distribution with a mean value of zero, and their distributions are denoted as h B,i ~CN(0,Γ B,i ) and h E,i ~CN(0,Γ E,i ), where Γ B,i >0 and Γ E,i >0, indicating the variance of the complex Gaussian distribution, reflecting the large-scale fading of the channel. During the communication process, Alice-1 is fixed to trans...

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Abstract

The invention discloses a multi-user collaboration jamming power distribution method under the restraint of confidentiality interrupt probability in a wireless wiretap channel. The Alice-1 user emits useful signals to an expected receiving end Bob, and remaining K-1 users emit collaboration jamming signals, and the wiretap end Eve of a single antenna wiretaps information sent by the Alice-1 user. By means of the method, the secure communication rate is improved by optimizing the emitting powers of all the jamming users, and the physical layer safe communication in the wireless wiretap channel is achieved.

Description

【Technical field】 [0001] The invention relates to the technical field of wireless communication, in particular to a multi-user cooperative interference power allocation method under the constraint of confidentiality interruption probability in a wireless eavesdropping channel. 【Background technique】 [0002] With the rapid development of wireless communication technologies such as cellular mobile communication, wireless communication security has attracted more and more attention in recent years. The root of wireless communication security problems comes from the broadcast characteristics of electromagnetic waves, which shows that the physical layer of wireless communication is not safe. Therefore, how to ensure the security of wireless communication from the physical layer is the key to solve the problem of wireless communication security. [0003] Multi-antenna transmission can increase the rate of secure communication. Therefore, when the base station is equipped with mu...

Claims

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Application Information

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IPC IPC(8): H04W72/04
CPCH04B7/024H04J11/0026
Inventor 穆鹏程钟艺玲胡晓燕殷勤业王慧明王文杰
Owner XI AN JIAOTONG UNIV
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