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Spatial correlation based analysis of soft combination and user selection algorithm for cooperative spectrum sensing

Title
Spatial correlation based analysis of soft combination and user selection algorithm for cooperative spectrum sensing
Author
남해운
Keywords
COGNITIVE RADIO NETWORKS; IMPERFECT REPORTING CHANNELS
Issue Date
2017-01
Publisher
INST ENGINEERING TECHNOLOGY-IET
Citation
IET COMMUNICATIONS, v. 11, No. 1, Page. 39-44
Abstract
This study presents an analytical method that shows how spatial correlation degrades the overall performance of cooperative spectrum sensing. In a cooperative spectrum sensing, where all secondary users (SUs) report their sensing information to the fusion centre (FC), sensing information is correlated for closely located users due to the similar surrounding environment. Considering the soft combining at the FC, this study shows how detection performance of correlated SUs is different from uncorrelated SUs. Furthermore, an algorithm is proposed which selects best uncorrelated SUs among all SUs of the network based on received power to the FC from SUs. The simulation results confirm the performance analysis of cooperative spectrum sensing with spatial correlation on the sensing data.
URI
http://digital-library.theiet.org/content/journals/10.1049/iet-com.2016.0373https://repository.hanyang.ac.kr/handle/20.500.11754/71616
ISSN
1751-8628; 1751-8636
DOI
10.1049/iet-com.2016.0373
Appears in Collections:
COLLEGE OF ENGINEERING SCIENCES[E](공학대학) > ELECTRICAL ENGINEERING(전자공학부) > Articles
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