An evolution toward cognitive cellular systems: licensed shared access for network optimization


This article reviews the application of the recent European Licensed Shared Access (LSA) concept for spectrum sharing between a mobile network operator (MNO) and an incumbent user. LSA, as a replacement area of application of cognitive technology, provides the MNO an opportunity to access new frequency resources on a shared basis. The article presents essential design criteria of LSA from the MNO point of read so as to allow future cognitive cellular networks to efficiently exploit shared spectrum bands. We have a tendency to describe the role of LSA bands in the context of heterogeneous networking, and determine the Long Term Evolution (LTE) and LTE-Advanced enabling technologies that support the introduction of LSA. Such technologies embrace traffic steering, carrier aggregation, and self-organizing networking. Additionally, we tend to introduce an LSA management unit controlled by the MNO, to be implemented on high of the present LTE/LTEAdvanced design, and we tend to discuss the functionalities required for the optimization and automation of LSA resource management. We have a tendency to additionally depict the interrelations of the tasks between the LSA management unit and therefore the supporting LTE/LTE-Advanced technologies. Based on the findings in this text, the continued cellular system evolution is shown to form a solid base for the introduction of new shared spectrum bands for cognitive cellular systems.

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