Switching Between Modulation Schemes In Adaptive Modulation
Adaptive Modulation
The Idea of Switching:
if the performance of the modulation schemes as the next figure, Switching between modulation schemes is done to maintain a BER less than a certain BER the next figure as the desired BER less than 10^-3
From the previous figure, to maintain a BER less than 10^-3 with higher throughput, the switching between modulation schemes is due to the SNR of the channel.
If the SNR less than 7dB don’t send data,
8<SNR<17 use DPSK ,
20<SNR<22.5 use 32-QAM
17<SNR<20 use 16-QAM
22.5<SNR<25 use 64-QAM
Larger than 25 use 128-QAM
After switching the performance curve will be
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Switching Between Modulation Schemes in 4G wireless Communication channel,wireless Communications channel,
4G Communications,Switching Between Modulation Schemes in 4G wireless Communications channel
Switching Between Modulation Schemes in 4G wireless Communication channel,wireless Communication channel,
Switching Between Modulation Schemes in 4G wireless Communications channel,wireless Communications channel,
Switching Between Modulation Schemes in 4G wireless Communication channel in 4G communication,wireless Communication channel in 4G communication ,
Switching Between Modulation Schemes in 4G wireless Communications channel in 4G communications,wireless Communications channel in 4G communications,
Switching Between Modulation Schemes in 4G 4G wireless Communication channel,4G wireless Communication channel,
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