Cognitive radio resource management exploiting heterogeneous primary users and a radio environment map database
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The efficient utilization of radio resources is a fundamental issue in cognitive radio (CR) networks. Thus, a novel cognitive radio resource management (RRM) is proposed to improve the spectrum utilization efficiency. An optimization framework for RRM is developed that makes the following contributions: (i) considering heterogeneous primary users (PUs) with multiple features stored in a radio environment map database, (ii) allowing variable CR demands, (iii) assuring interference protection towards PUs. After showing that the optimal solution is computationally infeasible, a suboptimal solution is consequently proposed. Performance evaluation is conducted in terms of total achieved data rate and satisfaction of CR requirements.
CitationVizziello, A. [et al.]. Cognitive radio resource management exploiting heterogeneous primary users and a radio environment map database. "Wireless networks", Agost 2013, vol. 19, núm. 6, p. 1203-1216.
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