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Spectrum Sensing Technologies for Cognitive Radio Based Interactive Broadcasting Services
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  • Spectrum Sensing Technologies for Cognitive Radio Based Interactive Broadcasting Services
  • Spectrum Sensing Technologies for Cognitive Radio Based Interactive Broadcasting Services
저자명
Lim. Kyu-Tae,Hur. Young-Sik,Lee. Jeong-Suk,Kim. Ki-Hong,Lee. Chang-Ho,Kim. Hak-Sun,Laskar. Joy
간행물명
방송공학회지 : 한국방송공학회지
권/호정보
2006년|11권 1호|pp.68-77 (10 pages)
발행정보
한국방송공학회
파일정보
정기간행물|ENG|
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기타
이 논문은 한국과학기술정보연구원과 논문 연계를 통해 무료로 제공되는 원문입니다.
서지반출

기타언어초록

The Cognitive Radio (CR) technology is a promising solution for exploiting the limited spectrum resources and providing flexibility of spectrum usage. Future interactive broadcasting service can be realized by utilizing CR concept, since the up-link return channel can be found by the spectrum sensing method, which is core functional block of the CR system. In this paper, the spectrum sensing technologies of CR system is presented. First the system architecture of the CR with spectrum sensing block is presented. The suggested spectrum sensing technique consists of the coarse and the fine spectrum sensing. The coarse spectrum sensing technique adopted the wavelet transform to provide the multi-resolution sensing feature - Multi-Resolution Spectrum Sensing (MRSS). The fine spectrum sensing technique uses the beneficial properties of the autocorrelation function Analog Auto-Correlation (AAC). The simulation results for the proposed sensing technologies are presented for various incumbent signals.