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Wireless Communication - Cognitive Radio
Next Generation Wireless Network Spectrum Management 1
Q
Which among the following is a challenge for spectrum management?
AA. Asynchronous sensing
BB. Multiple spectrum band operation
CC. Availability of non-contiguous spectrum bands
DD. Reconfiguration
Correct Answer:
D. D. Reconfiguration
Explanation:
Transmission parameters of a radio should be reconfigurable for effective operation in certain spectrum bands. For example, if the signal to noise cannot be modified, then the bit error rate can be altered to maintain the channel capacity by employing adaptive modulation techniques.