In parallel with the need for cost- and energy-efficient reconfigurable radio implementations, there is as a matter of fact also a growing need to make next-generation terminals more intelligent and adaptive. Through appropriate radio management, these terminals should make flexible and efficient use of network/spectrum resources, so as to enable connectivity across complex and spectrum-constrained wireless networking environments. This has lead to the concept of cognitive radio. In this chapter we will preview on how SDRs are crucial to realize cognitive radios, and will explain the specific features that will need to be added. Also, we will give a glance on how further integration will make SDRs even more attractive for a wide range of wireless systems in the future.
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(2009). Towards Cognitive Radios. In: Green Software Defined Radios. Series on Integrated Circuits and Systems. Springer, Dordrecht. https://doi.org/10.1007/978-1-4020-8212-2_7
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