Anti interference transmission algorithm of wireless communication data in the last kilometer of substation

The interference of wireless communication data in the last kilometer of substation is becoming more and more serious, so reliable anti-interference transmission mode is needed to ensure data security. The traditional anti-interference transmission algorithm is prone to collision of communication frequency points, which affects the convergence speed of the algorithm. According to the carrier frequency of the interference signal, the cyclic cumulant of the signal is calculated. The poor channel state is regarded as the equivalent interference, and the distribution characteristics of the channel equivalent interference are determined. The frequency band occupation of interference signal is expressed as state, the data interference avoidance model of wireless communication is established, the channel quality is evaluated, and the anti-interference transmission algorithm is designed to improve the reliability of wireless communication process. The experimental results show that the average number of iterations of the proposed anti-interference transmission algorithm is smaller, and the convergence speed is better than the traditional algorithm, which can realize the effective transmission of wireless communication data.