# Efficient and Robust Image Communication Techniques for 5G Applications in Smart Cities
## 5 Result Analysis and Discussion
\begin{table}
\begin{tabular}{c c c c c} \hline \hline \multirow{2}{*}{**SNR**} & \multicolumn{2}{c}{**FFT-OFDM**} & \multicolumn{2}{c}{**DCT-OFDM**} \\ \cline{2-5}  & **1 Tx and 1 Rx** & **1 Tx and 2 Rx** & **1 Tx and 1 Rx** & **1 Tx and 2 Rx** \\ \hline
**0 dB** & 9.9119 & 16.0626 & 10.4111 & 21.2002 \\ \hline
**5 dB** & 11.5252 & 26.9213 & 12.8423 & 44.3806 \\ \hline
**10 dB** & 13.0074 & 59.5812 & 17.4532 & 62.5781 \\ \hline
**15 dB** & 23.8034 & 70.2641 & 29.1656 & 76.5459 \\ \hline \hline \end{tabular}
\end{table} 
Table 3: PSNR values for FFT-OFDM and DCT-OFDM for QPSK with MRC (nTx = 1 and nRx = 1, 2) over AWGN Channel. Figure 7: Received Image with DCT-OFDM over a Rayleigh channel, Modulated with QPSK and at SNR = 0, 5, 10, 15 dB from L => R with MRC (nTx = 1 and nRx = 1 and 2). \begin{table}
\begin{tabular}{c c c c c} \hline \hline \multirow{2}{*}{**SNR**} & \multicolumn{2}{c}{**FFT-OFDM**} & \multicolumn{2}{c}{**DCT-OFDM**} \\ \cline{2-5}  & **1 Tx and 1 Rx** & **1 Tx and 2 Rx** & **1 Tx and 1 Rx** & **1 Tx and 2 Rx** \\ \hline
**0 dB** & 8.5157 & 12.78663 & 10.1498 & 16.5133 \\ \hline
**5 dB** & 10.1206 & 18.3998 & 11.7852 & 26.032 \\ \hline
**10 dB** & 12.9643 & 34.54 & 15.559 & 56.4358 \\ \hline
**15 dB** & 18.8008 & 54.3651 & 22.734 & 72.1541 \\ \hline \hline \end{tabular}
\end{table} 
Table 6: PSNR values for FFT-OFDM and DCT-OFDM for BPSK with MRC (nTx = 1 and nRx = 1, 2) over Rayleigh Channel. \begin{table}
\begin{tabular}{c c c c c} \hline \hline \multirow{2}{*}{**SNR**} & \multicolumn{2}{c}{**FFT-OFDM**} & \multicolumn{2}{c}{**DCT-OFDM**} \\ \cline{2-5}  & **1 Tx and 1 Rx** & **1 Tx and 2 Rx** & **1 Tx and 1 Rx** & **1 Tx and 2 Rx** \\ \hline
**0 dB** & 9.6355 & 12.8861 & 9.9624 & 15.7346 \\ \hline
**5 dB** & 10.5961 & 18.7141 & 12.1718 & 26.1021 \\ \hline
**10 dB** & 19.331 & 34.0961 & 15.009 & 61.4828 \\ \hline
**15 dB** & 19.037 & 53.1652 & 27.8149 & 76.5221 \\ \hline \hline \end{tabular}
\end{table} 
Table 7: PSNR values for FFT-OFDM and DCT-OFDM for QPSK with MRC (nTx = 1 and nRx = 1, 2) over Rayleigh Channel. \begin{table}
\begin{tabular}{c c c c c} \hline \hline \multirow{2}{*}{**SNR**} & \multicolumn{2}{c}{**FFT-OFDM**} & \multicolumn{2}{c}{**DCT-OFDM**} \\ \cline{2-5}  & **1 Tx and 1 Rx** & **1 Tx and 2 Rx** & **1 Tx and 1 Rx** & **1 Tx and 2 Rx** \\ \hline
**0 dB** & 9.2219 & 10.9362 & 9.228 & 11.4612 \\ \hline
**5 dB** & 9.8334 & 13.8928 & 10.0164 & 15.2007 \\ \hline
**10 dB** & 11.2669 & 21.5332 & 11.4974 & 25.1824 \\ \hline
**15 dB** & 14.2133 & 43.1082 & 15.151 & 49.9177 \\ \hline \hline \end{tabular}
\end{table} 
Table 8: PSNR values for FFT-OFDM and DCT-OFDM for 8-PSK with MRC (nTx = 1 and nRx = 1, 2) over Rayleigh Channel. \begin{table}
\begin{tabular}{c c c c c} \hline \hline \multirow{2}{*}{**SNR**} & \multicolumn{2}{c}{**FFT-OFDM**} & \multicolumn{2}{c}{**DCT-OFDM**} \\ \cline{2-5}  & **1 Tx and 1 Rx** & **1 Tx and 2 Rx** & **1 Tx and 1 Rx** & **1 Tx and 2 Rx** \\ \hline
**0 dB** & 9.2832 & 12 5852 & 9.5323 & 13.5347 \\ \hline
**5 dB** & 10.309 & 18.1539 & 10.616 & 20.5674 \\ \hline
**10 dB** & 12.3526 & 32.8267 & 12.5531 & 42.1449 \\ \hline
**15 dB** & 16.4483 & 59.4964 & 16.747 & 64.5412 \\ \hline \hline \end{tabular}
\end{table} 
Table 4: PSNR values for FFT-OFDM and DCT-OFDM for 8-PSK with MRC (nTx = 1 and nRx = 1, 2) over AWGN Channel. \begin{table}
\begin{tabular}{c c c c c} \hline \hline \multirow{2}{*}{**SNR**} & \multicolumn{2}{c}{**FFT-OFDM**} & \multicolumn{2}{c}{**DCT-OFDM**} \\ \cline{2-5}  & **1 Tx and 1 Rx** & **1 Tx and 2 Rx** & **1 Tx and 1 Rx** & **1 Tx and 2 Rx** \\ \hline
**0 dB** & 9.2819 & 10.9362 & 9.228 & 11.4612 \\ \hline
**5 dB** & 9.8334 & 13.8928 & 10.0164 & 15.2007 \\ \hline
**10 dB** & 11.2669 & 21.5332 & 11.4974 & 25.1824 \\ \hline
**15 dB** & 14.2133 & 43.1082 & 15.151 & 49.9177 \\ \hline \hline \end{tabular}
\end{table} 
Table 5: PSNR values for FFT-OFDM and DCT-OFDM for 16-PSK with MRC (nTx = 1 and nRx = 1, 2) over AWGN Channel.