Cognitive radio resource management exploiting heterogeneous primary users and a radio environment map database

Authors:
Anna Vizziello;Ian F. Akyildiz;Ramon Agustí;Lorenzo Favalli;Pietro Savazzi
Affiliations:
Dipartimento di Ingegneria Industriale e dell'Informazione, Università degli Studi di Pavia, Pavia, Italy 27100;Telecommunication Engineering School (ETSETB), Universitat Politècnica de Catalunya (UPC), Barcelona, Spain 08034 and Department of Information Technology, King Abdulaziz University, Jeddah, ...;Department of Signal Theory and Communications (TSC), Universitat Politècnica de Catalunya (UPC), Barcelona, Spain 08034;Dipartimento di Ingegneria Industriale e dell'Informazione, Università degli Studi di Pavia, Pavia, Italy 27100;Dipartimento di Ingegneria Industriale e dell'Informazione, Università degli Studi di Pavia, Pavia, Italy 27100
Venue:
Wireless Networks
Year:
2013

Citing 5
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Abstract

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.