TIIS (한국인터넷정보학회)
Current Result Document :
| 한글제목(Korean Title) |
Robust Pilot-aided Frequency Offset Estimation Scheme for OFDM-based Broadcasting System with Cyclic Delay Diversity |
| 영문제목(English Title) |
Robust Pilot-aided Frequency Offset Estimation Scheme for OFDM-based Broadcasting System with Cyclic Delay Diversity |
| 저자(Author) |
Won-Jae Shin
Young-Hwan You
|
| 원문수록처(Citation) |
VOL 07 NO. 12 PP. 3055 ~ 3070 (2013. 12) |
한글내용
(Korean Abstract) |
|
영문내용
(English Abstract) |
This paper proposes an improved carrier frequency offset (CFO) and sampling frequency offset (SFO) estimation scheme for orthogonal frequency division multiplexing (OFDM) based broadcasting system with cyclic delay diversity (CDD) antenna. By exploiting a periodic nature of channel transfer function, cyclic delay and pilot pattern with a maximum channel power are carefully chosen, which helps to enable a robust estimation of CFO and SFO against the frequency selectivity of the channel. As a performance measure, a closed-form expression for the achievable mean square error of the proposed scheme is derived and is verified through simulations using the parameters of the digital radio mondiale standard. The comparison results show that the proposed frequency estimator is shown to benefit from properly selected delay parameter and pilot pattern, with a performance better than the existing estimator.
|
| 키워드(Keyword) |
OFDM
cyclic delay diversity
carrier frequency offset
sampling frequency offset
|
| 파일첨부 |
PDF 다운로드
|
