콘텐츠 본문
논문 해외 국제전문학술지(SCI급) FREQUENCY OFFSET ESTIMATION BASED ON PARTIAL CORRELATION
- 학술지 구분 국제전문학술지(SCI급)
- 게재년월 2014-11
- 저자명 박지은,정의림공동(교신)
- 학술지명 INFORMATION (JAPAN)
- 발행처명 International Information Institute
- 발행국가 해외
- 논문언어 외국어
- 전체저자수 2
논문 초록 (Abstract)
In wireless communication systems, the transmitter-receiver oscillator mismatch and Doppler effect result in a carrier frequency offset (CFO) of the received signals. Since the CFO results in a rotation of the phase of the received signal, the receiver performance is severely degraded without compensation for the CFO. Hence, estimation and compensation for the CFO is crucial at the receiver. This paper proposes a new frequency offset estimation method based on partial correlation. By using the partial correlation output for the CFO estimation, the computational complexity of the proposed technique is much smaller than the conventional method that uses the full training sequence. In addition, the estimation range is wider than that of the conventional method. To verify the estimation performance, computer simulation is conducted and comparison with the conventional method is presented.
