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Published in:
2013 | OriginalPaper | Chapter
Optimal Channel Sensing in Cognitive Radio Network with Multiple Secondary Users
Author : Heejung Yu
Published in: Grid and Pervasive Computing
Publisher: Springer Berlin Heidelberg
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The optimal channel sensing problem in cognitive radio networks with multiple secondary users sharing a channel with primary users based on channel sensing is considered. Based on the previous system model and results in [1], we extend to cases with multiple secondary users. The characteristics of a sum rate and the optimal sensing are investigated. It is shown that the optimal sensing point is determined depending on the primary activity factor, primary and secondary link qualities.