상세정보
학술대회
Bandpass Sampling Digital Frontend Architecture for Multi-band Access Cognitive Radio
- 발행일
- 200911
- 출처
- GLOBECOM 2009, pp.1-6
- 협약과제
- 09MR3900, 이동통신 무선접속방식의 환경 적응형 자율제어 기술 연구, 김진업
- 초록
- Bandpass sampling (BPS) theory enables the conversion of RF frequency directly down to baseband, which is a significant technique in Cognitive radio (CR) systems because they require flexibility in RF frontend. Based on this concept, second-order BPS frontends for CR systems are designed and verified by using a hardware platform. The methods adopted to manipulate spectrums to remove aliasing and images are described, and the equations employed to design interpolants are provided. The results of experiment indicate that the proposed second-order BPS frontends can realize universal access and environment sensing functionalities in CR systems.
- KSP 제안 키워드
- Bandpass sampling, Environment sensing, Frontend architecture, Hardware platform, RF frequency, RF front end, cognitive radio(CR), multi-band, second-order, universal access