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2020. A Physical Layer Encryption Algorithm Based on Length-Compatible Polar Codes. 2020 IEEE 92nd Vehicular Technology Conference (VTC2020-Fall). :1—7.
The code length and rate of length-compatible polar codes can be adaptively adjusted and changed because of the special coding structure. In this paper, we propose a method to construct length-compatible polar codes by employing physical layer encryption technology. The deletion way of frozen bits and generator matrix are random, which makes polar codes more flexible and safe. Simulation analysis shows that the proposed algorithm can not only effectively improve the performance of length-compatible polar codes but also realize the physical layer security encryption of the system.