Subjects: Computer Science >> Integration Theory of Computer Science submitted time 2019-01-28 Cooperative journals: 《计算机应用研究》
Abstract: Aiming at the problem that the Bluetooth voice signal cannot be transmitted through the voice channel after being encrypted, this paper establishes a Bluetooth voice encryption data transmission model, and proposes a waveform codebook generation algorithm for Bluetooth voice encryption transmission. The algorithm uses subcarrier modulation to generate the initial modulation codebook, and trains data to obtain the demodulation codebook. This paper designed the Particle-pair algorithm with the last elimination mechanism to find the optimal codebook. Simulation analysis shows that the proposed algorithm has the advantages of fast convergence rate and can generate waveform codebooks with different bit transmission rate and low symbol error rate. Experiments show that using this waveform codebook to transmit data in Bluetooth has low symbol error rate.