An Efficient Power Control Scheme for Spectrum Mobility Management in Cognitive Radio Sensor Networks

  • Khanh-Huy Nguyen
  • Won-Joo Hwang
Part of the Lecture Notes in Electrical Engineering book series (LNEE, volume 181)


In cognitive radio sensor networks, following the conventional scheme, a secondary user is always required to execute handoff procedure when detecting appearance of a primary user. That makes performance of the secondary user decreased. In this paper, we propose a Transmission Power Control in the Feasible Range scheme to minimize handoff rate of the secondary users for cognitive radio sensor networks. By adjusting transmission power, we can enable the secondary user the ability to coexist with the primary user in the same spectrum band. Simulations show that our scheme reduces the handoff rate from 45% to 65% and increase the total network throughput up to 30% in comparison with conventional scheme.


Cognitive radio sensor networks spectrum mobility spectrum handoff primary user secondary user 


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Copyright information

© Springer Science+Business Media Dordrecht 2012

Authors and Affiliations

  1. 1.Department of Information and Communications EngineeringUHRC, Inje UniversityGyeongnamKorea

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