Improve the Security of Bandwidth Utilization of Legitimate Users

In the field of wireless communication, the signals transmitted by mobile devices are vulnerable to illegal eavesdropping by illegal eavesdroppers and blocked by obstacles. By using wireless mobile devices combined with intelligent reflectors, the signals transmitted through the transmitter have certain stability and flexibility in the process of transmission. This process is to adjust the amplitude and phase of the signals between the transmitter and receiver. Therefore, this paper proposes a model to improve the security of MIMO mobile devices with intelligent reflector. By establishing the reflection model, and then using the mathematical equation to obtain the maximum channel utilization rate, the results are derived, and the advantages of the security of the intelligent reflector are compared through simulation.