Tonghao Zhang, Xudong Wang, Nan Wu. CNN-Based Hybrid QAM-PPM Modulation End-to-End Communication System[J]. Laser & Optoelectronics Progress, 2022, 59(17): 1706001
- Laser & Optoelectronics Progress
- Vol. 59, Issue 17, 1706001 (2022)
Fig. 1. Block diagram of QAM-PPM hybrid modulation system under CNN-AE architecture
Fig. 2. Specific structure of dot_sigma layer
Fig. 3. Characteristics of sigmoid function with different δ values
Fig. 4. Comparison of SER performance at different orders. (a) M=4 and 8; (b) M=16 and 32; (c) M=64
Fig. 5. Comparison of SER performance when N=8 and 10
Fig. 6. Comparison of SER performance when M=4, 8, 16, 32, and 64
Fig. 7. Comparison of SER performance when N=8 and 10
Fig. 8. Loss functions of training set and validation set for two modulation schemes under AWGN channel. (a) M=4 and N=8; (b) M=64 and N=4
Fig. 9. Loss functions of training set and validation set for two modulation schemes under Rayleigh channel. (a) M=4 and N=8; (b) M=64 and N=4
Fig. 10. Comparison of SER performance of AWGN channel CNN and DNN
Fig. 11. Comparison of SER performance of Rayleigh channel CNN and DNN
|
Table 1. Parameters for autoencoder network structure
|
Table 2. System complexity comparison between DNN and CNN
Set citation alerts for the article
Please enter your email address
© Copyright 2018-2021 | Chinese Laser Press. All Rights Reserved 沪ICP备15018463号-20