Group-based management for cooperative spectrum sensing in cognitive radio networks

Authors:
Youmin Kim;Wonsop Kim;Heung-Ryeol you;Seongchoon Lee;Hyuckjae Lee
Affiliations:
School of Electrical Engineering, Korea Advanced Institute of Science and Technology, Daejeon, Korea;School of Electrical Engineering, Korea Advanced Institute of Science and Technology, Daejeon, Korea;Infra Laboratory, Next Generation Mobile Research Department, KT, Seoul, Korea;Infra Laboratory, Next Generation Mobile Research Department, KT, Seoul, Korea;School of Electrical Engineering, Korea Advanced Institute of Science and Technology, Daejeon, Korea
Venue:
ICACT'10 Proceedings of the 12th international conference on Advanced communication technology
Year:
2010

Citing 3
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Abstract

In cognitive radio networks, secondary users can opportunistically utilize the unused spectrum holes that are originally licensed to primary users. Therefore, spectrum sensing for seeking unutilized spectrum is a key element to establish cognitive radio network successfully, and cooperative spectrum sensing is a promising way to obtain more trustable sensing results. This paper considers the scenario in which secondary users monitor multiple channels employing cooperative spectrum sensing. Based on the concept of group-based management for spectrum sensing, we propose sensing allocation algorithm in which SUs are allowed to sense the channel which they can monitor reliably. The simulation results show that detection performance is improved in comparison with the conventional scheme.