Table 11 PSNR vs. SNR of the received cameraman image with/without RSA encryption
From: Secure image transmission through LTE wireless communications systems
SNR [dB] | DCT OFDMA without RSA encryption, QPSK | DCT OFDMA with RSA encryption, QPSK | DCT OFDMA without RSA encryption, 16QAM | DCT OFDMA with RSA encryption, 16QAM | ||||
|---|---|---|---|---|---|---|---|---|
DCT-LOFDMA | DCT-IOFDMA | DCT-LOFDMA | DCT-IOFDMA | DCT-LOFDMA | DCT-IOFDMA | DCT-LOFDMA | DCT-IOFDMA | |
20 | Inf. | 67.0683 | 54.5217 | 54.2333 | 45.4100 | 49.0144 | 42.5597 | 46.6556 |
25 | Inf. | Inf. | Inf. | 54.5217 | 56.6539 | 58.2919 | 50.1393 | 52.7763 |
30 | Inf. | Inf. | Inf. | Inf. | Inf. | Inf. | 54.1066 | 54.7456 |
35 | Inf. | Inf. | Inf. | Inf. | Inf. | Inf. | Inf. | Inf. |