For Full-Text PDF, please login, if you are a member of IEICE,|
or go to Pay Per View on menu list, if you are a nonmember of IEICE.
A Method to Mitigate the Impact of Primary User Traffic on an Energy Detector in Spectrum Sensing
Truc Thanh TRAN Alagan S. ANPALAGAN Hyung Yun KONG
IEICE TRANSACTIONS on Communications
Publication Date: 2013/06/01
Online ISSN: 1745-1345
Print ISSN: 0916-8516
Type of Manuscript: PAPER
Category: Wireless Communication Technologies
spectrum sensing, cognitive radio, energy detection, Neyman-Pearson criterion,
Full Text: PDF>>
In this article, we propose a method to reduce the impact of primary traffic on spectrum sensing performance. In practice, the sensing performance is degraded by noise-only sample in the spectrum sensing time. Therefore, we employ a time of primary user (PU) signal arrival detector in order to remove the noise-only portion. Then, we employ equal-weight-based energy detection (EWED) to provide the detection decision. The analysis and simulation results show that there exists an optimal early time of arrival (ToA) false alarm which provides better performance compared to the use of a single EWED scheme.