Joint channel-security coding based on interleaver and puncturer in Turbo code

The reliability and validity of data communication via wireless channel are very challenging topics and attract many excellent researchers in the last decades. In this paper, a secure channel coding scheme is presented which is implemented by designing interleaver and puncturer in Turbo code. The algorithm applies a private key to generate a pseudo-random number sequence for interleaving and puncturing bits which obtains an adaptive coding rate and encrypted coding stream. Simulation experiment is used to check the effect of encryption and the reliability of the error correction of the proposed algorithm. The curves of Error Bit Rate (BER) versus Signal to Noise Rate (SNR) are showed to compare performance of the general Turbo code and our method.