![Matlab plot of QPSK system doesn't agree perfectly with theoretical BER curves - Signal Processing Stack Exchange Matlab plot of QPSK system doesn't agree perfectly with theoretical BER curves - Signal Processing Stack Exchange](https://i.stack.imgur.com/PjCgQ.png)
Matlab plot of QPSK system doesn't agree perfectly with theoretical BER curves - Signal Processing Stack Exchange
![Figure 6. BER plot for BPSK, QPSK, 16-QAM in RAYLEIGH channel : Implementation and Performance Evaluation of OFDM System in Diverse Transmission Channel Using Simulink : Science and Education Publishing Figure 6. BER plot for BPSK, QPSK, 16-QAM in RAYLEIGH channel : Implementation and Performance Evaluation of OFDM System in Diverse Transmission Channel Using Simulink : Science and Education Publishing](http://pubs.sciepub.com/ajeee/3/5/2/bigimage/fig6.png)
Figure 6. BER plot for BPSK, QPSK, 16-QAM in RAYLEIGH channel : Implementation and Performance Evaluation of OFDM System in Diverse Transmission Channel Using Simulink : Science and Education Publishing
![Figure 6 from BER Performance of QAM and QPSK Modulation Technique for DCT Based Channel Estimation of STBC MIMO OFDM | Semantic Scholar Figure 6 from BER Performance of QAM and QPSK Modulation Technique for DCT Based Channel Estimation of STBC MIMO OFDM | Semantic Scholar](https://d3i71xaburhd42.cloudfront.net/bf2c66e87c3883b1be5455d5001c65b0f64590d7/4-Figure6-1.png)
Figure 6 from BER Performance of QAM and QPSK Modulation Technique for DCT Based Channel Estimation of STBC MIMO OFDM | Semantic Scholar
![Figure 5 from BER Performance of QAM and QPSK Modulation Technique for DCT Based Channel Estimation of STBC MIMO OFDM | Semantic Scholar Figure 5 from BER Performance of QAM and QPSK Modulation Technique for DCT Based Channel Estimation of STBC MIMO OFDM | Semantic Scholar](https://d3i71xaburhd42.cloudfront.net/bf2c66e87c3883b1be5455d5001c65b0f64590d7/4-Figure5-1.png)