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Consider the adaptive modulation system. There is a three-state channel: the SNR of the channel is 3dB for 20% of the time, 10dB for

Consider the adaptive modulation system. There is a three-state channel: the SNR of the channel is 3dB for 20% of the time, 10dB for 40% of the time, and 17dB for 40% of the time. With the adaptive modulation, it can choose among BPSK, QPSK, 16-QAM, and 64QAM modulations. What is the achievable data rate with 10MHz bandwidth? What is the average data rate if only 16-QAM is used?

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