An Effective Spectrum Sensing Method Based on Maximum Eigenvector

Abstract:

Spectrum sensing is a fundamental problem for cognitive radio system as it allows secondary user (SU) to find spectrum holes for opportunistic reuse. This paper presents a new spectrum sensing method based on the data stacking technique (temporal smoothing technique) and power method. The “maximum eigenvector” is used to detect the spectrum holes. Compared with the previous works, the proposed approach can provide better performance, such as higher detection probability in the lower signal-to-noise-ratio (SNR) scenario, etc.

• Periodical: Applied Mechanics and Materials (Volumes 556-562)
• Pages: 4522-4525
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.556-562.4522
• Online since: May 2014
• Authors: Rui Yan Du*, Fu Lai Liu, Ya Ping Wu
• Keywords: Cognitive Radio (CR), Secondary User, Spectrum Sensing, Temporal Smoothing

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