irreducible ber floor is created in frequency selective channels due to، Clarification: Even if the mobile channel is not frequency selective, the variable Doppler spread due to motion creates an irreducible BER floor. It is caused by a random spectral spread. 5.
irreducible ber floor is created in frequency selective channels due to
In fast fading channels without empirical information, current receiver structures exhibit an “irreducible error floor”, where the bit error rate (BER) is a limit
Figure 6 shows the comparison of the BER for different modulations using the ZF-SIC equalizer. The ZF-SIC equalizer and MMSE-SIC do not perform well in the frequency selective fading channel. As can be seen from “Fig. 6” and “Fig. 7” it remains constant for large SNR and there is a deviation for large SNR.
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