A prototype cognitive radio architecture for TVWS exploitation under the real time secondary spectrum market policy

Athina Bourdena, Evangelos Pallis, George Kormentzas, George Mastorakis

Research output: Contribution to journalArticlepeer-review

26 Citations (Scopus)

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 languageEnglish
Pages (from-to)159-168
Number of pages10
JournalPhysical Communication
Volume10
DOIs
Publication statusPublished - 2014

Keywords

  • CR
  • RRM
  • Spectrum broker
  • Spectrum trading
  • TVWS

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