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IN MATLAB +jQ.[1.1250+0.6250i,0.68561.0786i,0.2286+0.0518i,0.14260.1738i,0.12500.1250i,0.6064+0.1341i,0.3018+0.4786i,0.1841+0.5210i,0.3750+0.3750i,0.5089+1.1518i,0.47860.3018i,0.31940.2530i,0.1250+0.1250i,0.4296+0.2926i,0.05180.2286i,0.00730.5942i][1.3750+0.8750i,0.32760.2039i,0.08840.7437i,0.68040.4068i,0.25000.7500i,0.4890+0.1362i,0.6187+0.3902i,0.13440.4494i,1.3750+0.1250i,0.1508+0.0271i,0.0884+0.4937i,0.8572+0.2300i,0.0000+0.7500i,0.6658+0.0406i,0.61870.1402i,0.3112+0.6262i][1.3750+0.1250i,0.15600.7033i,0.1250+0.7589i,0.3474+0.4705i,0.1250+0.1250i,0.25170.2396i,0.6553+0.8321i,0.3870+0.7990i,1.1250+0.8750i,0.0207+0.2766i,0.12501.0089i,0.17060.3973i,0.12500.1250i,0.0749+0.1663i,0.40530.5821i,0.21020.3722i][1.2500+0.1250i,0.4724+0.3162i,0.1768+0.0518i,0.1603+1.0842i,0.0000+0.1250i,0.33520.3913i,0.3536+0.1250i,0.41190.0292i,1.0000+0.8750i,0.04560.7430i,0.17680.3018i,0.08711.0110i,0.25000.1250i,0.2620+0.3181i,0.3536+0.1250i,0.8386+0.4560i] If the transmitter used a 16 sub-carrier channel OFDM modulation with 16 QAM, can you decode the transmitted message (use standard 16QAM
IN MATLAB
+jQ.[1.1250+0.6250i,0.68561.0786i,0.2286+0.0518i,0.14260.1738i,0.12500.1250i,0.6064+0.1341i,0.3018+0.4786i,0.1841+0.5210i,0.3750+0.3750i,0.5089+1.1518i,0.47860.3018i,0.31940.2530i,0.1250+0.1250i,0.4296+0.2926i,0.05180.2286i,0.00730.5942i][1.3750+0.8750i,0.32760.2039i,0.08840.7437i,0.68040.4068i,0.25000.7500i,0.4890+0.1362i,0.6187+0.3902i,0.13440.4494i,1.3750+0.1250i,0.1508+0.0271i,0.0884+0.4937i,0.8572+0.2300i,0.0000+0.7500i,0.6658+0.0406i,0.61870.1402i,0.3112+0.6262i][1.3750+0.1250i,0.15600.7033i,0.1250+0.7589i,0.3474+0.4705i,0.1250+0.1250i,0.25170.2396i,0.6553+0.8321i,0.3870+0.7990i,1.1250+0.8750i,0.0207+0.2766i,0.12501.0089i,0.17060.3973i,0.12500.1250i,0.0749+0.1663i,0.40530.5821i,0.21020.3722i][1.2500+0.1250i,0.4724+0.3162i,0.1768+0.0518i,0.1603+1.0842i,0.0000+0.1250i,0.33520.3913i,0.3536+0.1250i,0.41190.0292i,1.0000+0.8750i,0.04560.7430i,0.17680.3018i,0.08711.0110i,0.25000.1250i,0.2620+0.3181i,0.3536+0.1250i,0.8386+0.4560i] If the transmitter used a 16 sub-carrier channel OFDM modulation with 16 QAM, can you decode the transmitted message (use standard 16QAM constellation shown in figure 3(b)) The transmitted message is an 8-character word. Each character is transmitted in the form of a binary ASCII string (' 01100001 ' is the ASCII binary code for character ' a '). The first 4 bits of the first character were modulated as a 16 QAM symbol and loaded on the second most negative frequency. The first 4 bits of the second character were modulated as a 16 QAM symbol and loaded on the third most negative frequency. Similarly, the last 4 bits of the last character were modulated as a 16QAM symbol and loaded on the positive most frequency. The other characters are similarly loaded on frequencies in between. Figure 3: Channel dispersion results in no error (a), causes error (b)Step by Step Solution
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