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Figure 4 Original waveform of file-1.

Figure 4 Original waveform of file-1.

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This technique is employed in the simulation as a data randomizing tool. It is employed in two forms; it is applied on the audio file to randomize the whole audio
This technique is employed in the simulation as a data randomizing tool. It is employed in two forms; it is applied on the audio file to randomize the whole audio
Figure 1 Bit-level interleaver of audio file after transforming to binary data. (a) Audio file in binary data form. (b) Audio file after bit-level interleaving.
Figure 1 Bit-level interleaver of audio file after transforming to binary data. (a) Audio file in binary data form. (b) Audio file after bit-level interleaving.
Table 1 Simulation audio signal (file-2) parameters
Table 1 Simulation audio signal (file-2) parameters
Table 2 Simulation audio signal (file-1) parameters
Table 2 Simulation audio signal (file-1) parameters
Figure 6 Received audio signal of file-2 waveform over uncorrelated fading channel at SNR = 25 GB. (a) No interleaving. (b) Bit-level interleaving. (¢) Convolutional interleaving.
Figure 6 Received audio signal of file-2 waveform over uncorrelated fading channel at SNR = 25 GB. (a) No interleaving. (b) Bit-level interleaving. (¢) Convolutional interleaving.
Figure 7 Received audio file-2 signal waveform over a correlated fading channel at SNR = 25 dB. (a) V- = 3 mile/h. (b) V. = 10 mile/h The result of this simulation reveals that the mobility of the transmitter increases the distortion of the received audio signal. Also, the audio signal transmis- sion needs strong interleaving technique to spread the errors and reduce the bad mobility effects. In the following simulation, the interleaving effect on the received waveform of audio signal over uncorrelated fading channel is studied. The file-1 is transmitted using the uncoded classic DH, packets. Figure 8 illustrates the waveform of received audio signal at SNR = 20 dB. It is clear that using the interleaving improves received wave- form at the same SNR value. The audio file-1
Figure 7 Received audio file-2 signal waveform over a correlated fading channel at SNR = 25 dB. (a) V- = 3 mile/h. (b) V. = 10 mile/h The result of this simulation reveals that the mobility of the transmitter increases the distortion of the received audio signal. Also, the audio signal transmis- sion needs strong interleaving technique to spread the errors and reduce the bad mobility effects. In the following simulation, the interleaving effect on the received waveform of audio signal over uncorrelated fading channel is studied. The file-1 is transmitted using the uncoded classic DH, packets. Figure 8 illustrates the waveform of received audio signal at SNR = 20 dB. It is clear that using the interleaving improves received wave- form at the same SNR value. The audio file-1
Figure 8 Received audio signal of file-1 waveform over uncorrelated fading channel at SNR = 20 GB. (a) No interleaving. (b) Bit-level interleaving. (c) Convolutional interleaving.
Figure 8 Received audio signal of file-1 waveform over uncorrelated fading channel at SNR = 20 GB. (a) No interleaving. (b) Bit-level interleaving. (c) Convolutional interleaving.
Figure 9 Received audio signal of file-1 waveform over a correlated fading channel (V. = 10 mile/h) at SNR = 20 GB. (a) No interleaving. (b) Bit-level interleaving. (¢) Convolutional interleaving.
Figure 9 Received audio signal of file-1 waveform over a correlated fading channel (V. = 10 mile/h) at SNR = 20 GB. (a) No interleaving. (b) Bit-level interleaving. (¢) Convolutional interleaving.
Figure 10 FER of audio signal versus SNR over correlated fading channel. (a) V- = 3 mile/h. (b) V- = 10 mile/t
Figure 10 FER of audio signal versus SNR over correlated fading channel. (a) V- = 3 mile/h. (b) V- = 10 mile/t
Figure 11 FER and NFL of audio signal versus SNR over correlated fading channel. (a) FER at V. = 3/10 mile/h. (b) NLF at V. = 3/10 mile h.
Figure 11 FER and NFL of audio signal versus SNR over correlated fading channel. (a) FER at V. = 3/10 mile/h. (b) NLF at V. = 3/10 mile h.
Figure 12 NFL of audio signal versus E,/N, over correlated fading channel. (a) V. = 3 mile/h. (b) V- = 10 mile/h.
Figure 12 NFL of audio signal versus E,/N, over correlated fading channel. (a) V. = 3 mile/h. (b) V- = 10 mile/h.
Figure 13 Cr of audio signal vs. SNR for 2DH, packets over correlated fading channel with V, = 1 up to 20 mile/h. Figure 14 MSE of audio versus SNR for 2DH, packets over correlated fading channel with different V,.
Figure 13 Cr of audio signal vs. SNR for 2DH, packets over correlated fading channel with V, = 1 up to 20 mile/h. Figure 14 MSE of audio versus SNR for 2DH, packets over correlated fading channel with different V,.
Figure 16 Throughput of audio signal versus SNR over correlated fading channel with different V,.
Figure 16 Throughput of audio signal versus SNR over correlated fading channel with different V,.
Figure 15 NLF of audio signal versus SNR over correlated fading channel with different V..
Figure 15 NLF of audio signal versus SNR over correlated fading channel with different V..
Figure 17 Audio signal transmission using 2DH, packets over a correlated Rayleigh fading channel at SNR = 15 dB with different (a) V- = 1 mile/h, Cr = 0.953. (b) V- = 3 mile/h, Cr = 0.952. (€) V. = 10 mile/h, Cr = 0.947. (d) V. = 20 mile/h, Cr = 0.944.
Figure 17 Audio signal transmission using 2DH, packets over a correlated Rayleigh fading channel at SNR = 15 dB with different (a) V- = 1 mile/h, Cr = 0.953. (b) V- = 3 mile/h, Cr = 0.952. (€) V. = 10 mile/h, Cr = 0.947. (d) V. = 20 mile/h, Cr = 0.944.
Figure 18 Audio signal transmission using 2DH1&2DM, packets over a correlated Rayleigh fading channel at SNR = 15 dB with different scenarios {V. = 3 mile/h). (a) 2DH, (No interleaving), Cr = 0.953. (b) 2DM, (No interleaving), Cr = 0.957. (¢) 2DM;, (Block interleaving), Cr = 0.97. (d) 2DM, (Chaotic randomizing], Cr = 0.98.
Figure 18 Audio signal transmission using 2DH1&2DM, packets over a correlated Rayleigh fading channel at SNR = 15 dB with different scenarios {V. = 3 mile/h). (a) 2DH, (No interleaving), Cr = 0.953. (b) 2DM, (No interleaving), Cr = 0.957. (¢) 2DM;, (Block interleaving), Cr = 0.97. (d) 2DM, (Chaotic randomizing], Cr = 0.98.
Figure 19 Cr versus E,/N, for the audio signal transmission over a correlated Rayleigh fading channel using 2DH, & 2DM, packets with different scenarios {V. = 3 mile/h}.
Figure 19 Cr versus E,/N, for the audio signal transmission over a correlated Rayleigh fading channel using 2DH, & 2DM, packets with different scenarios {V. = 3 mile/h}.
Figure 20 MSE versus E,/N, for the audio signal transmission over a correlated Rayleigh fading channel using 2DH, & 2DM, packets with different scenarios {V. = 3 mile/h}.
Figure 20 MSE versus E,/N, for the audio signal transmission over a correlated Rayleigh fading channel using 2DH, & 2DM, packets with different scenarios {V. = 3 mile/h}.
Figure 21 BER versus E,/N, for the audio signal transmission over a correlated Rayleigh fading channel using 2DH, & 2DM, packets with different scenarios {V. = 3 mile/h}.
Figure 21 BER versus E,/N, for the audio signal transmission over a correlated Rayleigh fading channel using 2DH, & 2DM, packets with different scenarios {V. = 3 mile/h}.
Figure 22 NLF % versus E,/N, for the audio signal transmission over a correlated Rayleigh fading channel using 2DH, & 2DM, packets with different scenarios {V. = 3 mile/h}.
Figure 22 NLF % versus E,/N, for the audio signal transmission over a correlated Rayleigh fading channel using 2DH, & 2DM, packets with different scenarios {V. = 3 mile/h}.
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