Capacity and power allocation for spectrum sharing in cognitive radio systems under unknown channel state information and imperfect spectrum sensing

2012 ◽  
Vol 6 (15) ◽  
pp. 2387-2394 ◽  
Author(s):  
A. Ahhmadfard ◽  
M. Biguesh ◽  
A. Jamshidi
Keyword(s):  
Cognitive Radio ◽  
Power Allocation ◽  
Spectrum Sensing ◽  
Channel State Information ◽  
Spectrum Sharing ◽  
Channel State ◽  
State Information ◽  
Cognitive Radio Systems ◽  
Radio Systems ◽  
Imperfect Spectrum Sensing

scholarly journals Subcarrier-Sniffer：CSI-based Subcarrier-Level Spectrum Sensing Algorithm

2019 ◽  
Author(s):  
Zhenjiang Tan ◽  
Zheng Lu ◽  
Hongyu Sun
Keyword(s):  
Spectrum Sensing ◽  
Channel State Information ◽  
Spectrum Sharing ◽  
Smart Homes ◽  
Experimental Results ◽  
Spectrum Utilization ◽  
Channel State ◽  
State Information ◽  
Level Spectrum ◽  
Iot Devices

Abstract: As the massive deployment of the heterogeneous IoT devices in the coexisting environment such as smart homes，Traditional channel-based spectrum sharing algorithms such as CSMA has great limitations to further optimize spectrum utilization. Therefore, exploring more efficient spectrum sensing algorithm becomes hot topic these years. This paper proposes Subcarrier-Sniffer, which utilizes Channel State Information (CSI) to sense the subcarrier-level detailed status of the spectrum. In order to evaluate the performance of Subcarrier-Sniffer, we implemented Subcarrier-Sniffer by USRP B200min, and the experimental results show that when the distance between Subcarrier-Sniffer and the monitored devices is not great than 7 m, the accuracy of subcarrier-level spectrum sensing could achieve 100% in our settings.

Sign in / Sign up

Export Citation Format

Share Document