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.
Original language | English |
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Pages (from-to) | 159-168 |
Number of pages | 10 |
Journal | Physical Communication |
Volume | 10 |
DOIs | |
Publication status | Published - 2014 |
Keywords
- CR
- RRM
- Spectrum broker
- Spectrum trading
- TVWS