Physical Layer Security Research Of Subset Selected In Antenna Array

The antenna array technology is characterized by configuring multiple transmit and receive antennas at the transmitter and the receiver to obtain more accurate than the conventional antenna beam control system, As a key technology in 5G which makes full use of space resources, it can exponentially increase the channel capacity of the antenna system and improve communication and the quality of data transmission rate without increasing the transmission power and spectrum resources, and using a plurality of receive and transmit antennas.In today’s Internet background,high-speed data transmission is requirement of users, and the security is another requirement which has transformed to a key issue can not be ignored.From the security point of view, this paper studied the array antenna using an antenna subset selection and intelligent algorithms to achieve secure transmission of information security technology, and make a theoretical analysis about the safety performance of these technology, and finally from the perspective of the error vector magnitude, quantization safety performance of the array of information.Work done as follows:First, discussed how to use the antenna subset selection algorithm to improve the security of information transmission in a linear array and ts theoretical basis, and the results are extended to the planar antenna array, then taking advantage of genetic algorithm to generate low side lobes comprehensive array antenna pattern, and reduce the risk of side lobes in information disclosure.Second, studied the defects of information transmission which used antenna subset selection algorithm and exploit these flaws to make a estimation of key parameters from a statistical point and raise in order to achieve the system’s attack. On the basis of the theoretical research, given the antenna subset selection algorithm further optimization direction.Finally, the quantization of error vector magnitude derivation analysis phase noise on the transmission array antenna information and guidance on the basis of how the proposed phase noise to provide security services for the transmission of information in the antenna array, at the same time, it provide another perspective of the array antenna system security research.