Question

Which among the following is a challenge for spectrum management?

(a) Asynchronous sensing

(b) Multiple spectrum band operation

(c) Availability of non-contiguous spectrum bands

(d) Reconfiguration

The question was posed to me by my college professor while I was bunking the class.

I would like to ask this question from Next Generation Wireless Network topic in chapter Next Generation Wireless Network of Cognitive Radio

Answer 1

Correct answer is (d) Reconfiguration

The best 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.