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International Conference on Information, Electronic and Computer Science (ICIECS 2010 E-BOOK)

Zibo,China,11.26-11.28,2010

ISBN: 978-1-935068-42-6 Scientific Research Publishing, USA

E-Book 2224pp Pub. Date: November 2010

Category: Computer Science & Communications

Price: $360

Title: A Cooperative Spectrum Sensing Algorithm in Transform Domain Communication System
Source: International Conference on Information, Electronic and Computer Science (ICIECS 2010 E-BOOK) (pp 393-397)
Author(s): Junwei Lv, Ordnance Engineering College Optics and Electronic Engineering Department Shijiazhuang, Hebei 050003
Zili Cheng, Ordnance Engineering College Optics and Electronic Engineering Department Shijiazhuang, Hebei 050003
Zhigang Xie, Ordnance Engineering College Optics and Electronic Engineering Department Shijiazhuang, Hebei 050003
Abstract: To meet the communications needs in TDCS, in order to efficiently detect the licensed users under prior knowledge constrains in the fusion center, a novel cooperative spectrum sensing algorithm based on Dumpsters-Shafer theory was proposed. In this algorithm, the credibility and uncertainty were calculated based on the local sensing result of cognitive radios. The simulation results show that the performance of the novel algorithm is better than energy fusion method and that if the system gets more prior knowledge, the performance of the novel algorithm is the same as that of the optimal linear cooperative algorithm.
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