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We then considered the performance of our proposed algorithm with several modulation techniques. Again, this simulation was administered with 16 base station antenna terminals communicating with 16 users using 16QAM modulation and MMSE precoding. As shown in figure, QPSK has the best error performance over the range of SNR, whereas 64 QAM has the best performance. This is because higher modulation orders can carry more data per symbol. On the other hand, higher modulation order has a higher error rate as it is more prone to interference and noise. Thus, a perfect modulation order is always based on the application and the user¡¯s requirements. |
IEEE/ICACT20230176 Slide.13
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