A Method of Maximizing the Non-interruption Probability of System Listening

Abstract

The invention relates to a method for maximizing monitoring non-interrupting probability of a system. The method comprises steps, 1) a legal monitoring node estimates signal channel state information in a communication system through monitoring pilot frequencies of a suspicious emitting node and a suspicious receiving node; 2) the legal monitoring node calculates the best emitting power pd and emission, the emitting and receiving beam forming devices wt and wr on the basis of the maximized system monitoring non-interrupting probability by using the signal channel state information estimated; 3) when the suspicious emitting node is in communication with the suspicious receiving node, the legal monitoring node can maximize the monitoring non-interrupting probability of the system under the full dual-working mode on the basis of the best emitting power pd and the emitting and receiving beam forming devices wt and wr. The method can make the disturbing signal generate big disturbance to the suspicious receiving node while slightly impact on the legal monitoring node, thereby largely promoting the monitoring non-interrupting probability of the whole communication system.

Description

Technical field [0001] The present invention relates to the field of communications, in particular to a method for maximizing the non-interruption probability of system monitoring. Background technique [0002] With the advancement of society and the development of technology, wireless communication technology is continuously improving and improving people's lifestyle and quality. As a core issue of wireless communication, network security has always been the focus of people's attention, and it is also a condition for the large-scale popularization and application of wireless networks. In order to cope with the challenge of secure transmission of wireless communication networks, wireless communication physical layer security technology emerged as the times require and has become a current research hotspot. From the perspective of information theory, physical layer security technology uses the uniqueness and reciprocity of physical channels to realize information encryption and i...

AI Technical Summary

Problems solved by technology

It is worth pointing out that the relevant research work is still in its infancy. From the perspective of physical layer security technology to realize the legal interception of suspicious communications, there is a lot of room for development and excavation.

Images