Article ID Journal Published Year Pages File Type
466785 Physical Communication 2014 10 Pages PDF
Abstract

This paper elaborates on the design and implementation of a prototype system architecture enabling for TVWS exploitation by LTE Advanced systems, under the real time secondary spectrum market policy. It describes a centralized infrastructure-based cognitive radio network, where dynamic TVWS allocation among unlicensed systems is administrated by a spectrum broker, carrying out radio-resource management and spectrum trading in real time. For efficient system performance as a matter of both maximum-possible radio resource exploitation and trading revenue, the paper discusses the design and implementation of a prototype mechanism at the spectrum broker side, which exploits the backtracking algorithm for obtaining the best-matching solution. Performance evaluation experiments carried-out under controlled conditions (i.e. simulation) verified the validity of the proposed architecture, besides establishing its capacity for maximum spectrum utilization and minimum fragmentation under a fixed-price trading policy.

Related Topics
Physical Sciences and Engineering Computer Science Computer Networks and Communications
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