Utility-based power control in hierarchical spectrum sharing networks for cognitive radio

In this paper, we propose utility-based power control algorithm jointing with admission control (UPCAC) for distributed communication in the hierarchical spectrum sharing network (HSSN) for cognitive radio. We formulate a utility function (payoff function minus price function) to reflect the tradeof...

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Bibliographic Details
Published in2008 11th IEEE Singapore International Conference on Communication Systems pp. 1036 - 1040
Main Authors Yueling Che, Jie Chen, Wanbin Tang, Shaoqian Li
Format Conference Proceeding
LanguageEnglish
Published IEEE 01.11.2008
Subjects
Admission control
Cognitive radio
Convergence
HSSN
Interference constraints
Power control
power convergence
Protection
Protocols
QoS
Quality of service
Research and development
Signal to noise ratio
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Summary:In this paper, we propose utility-based power control algorithm jointing with admission control (UPCAC) for distributed communication in the hierarchical spectrum sharing network (HSSN) for cognitive radio. We formulate a utility function (payoff function minus price function) to reflect the tradeoff policy between the protecting for primary users (PUs) and the supporting to quality of service (QoS) requirements for cognitive radio users (CRUs). We also analyze the geometric characteristics of payoff function and price function, and base the parameter setting of utility function on this analysis. Finally, we design corresponding power control protocol based on UPCAC for HSSN. Simulation results indicate that 1) UPCAC can meet the protection for PUs as well as the QoS requirements of CRUs by flexibly setting parameters; 2) UPCAC guarantees power convergence by jointing power control with admission control; 3) UPCAC achieves desirable admission ratio and spectrum efficiency.
ISBN:1424424232
9781424424238
DOI:10.1109/ICCS.2008.4737340