Earticle

초록

영어

Accurate detection performance of spectrum sensing will obviously affect the communication quality of licensed users and secondly users. Robust spectrum sensing algorithm can reduce interfere to primary users. This paper presents a new OFDM cyclic spectrum sensing scheme which based on overlay parts sub-carriers to original OFDM signals. In this paper, the parts sub-carriers come from original OFDM cyclic feature signals. Simulation and numerical results show that new method has a high success rate of sensing and a shorten detection time. Moreover, computational complexity is almost no change. Algorithm improved detection performance obviously and enhanced the effectiveness of anti-noise uncertainty and improved the robustness of detecting weak signal. Algorithm meets the spectrum sensing technology requirements of low SNR environment.

목차

Abstract
 1. Introduction
 2. Mathematics Foundations of Cyclostationary Signals
 3. OFDM Signals Cyclic Feature
 4. Improved OFDM Signals Cyclic Feature
 5. Detection Performance Analysis
 6. Conclusions
 Acknowledgements
 References

키워드

저자

• Guicai Yu [ Department of Information Engineering, Nanchang University, 330031, China ]
• Chengzhi Long [ Department of Information Engineering, Nanchang University, 330031, China ]
• Mantian Xiang [ Department of Information Engineering, Nanchang University, 330031, China ]

참고문헌

발행기관

간행물

표지보기 관심저널 등록

• 간행물명

  International Journal of Security and Its Applications

• 간기

  격월간

• pISSN

  1738-9976

• 수록기간

  2008~2016

• 등재여부

  SCOPUS

• 십진분류

  KDC 505 DDC 605