상세정보
학술지
Error Probability Expressions for Frame Synchronization Using Differential Correlation
- 저자
- 김상태, 김재원, 신동준, 장대익, 성원진
- 발행일
- 201012
- 출처
- Journal of Communications and Networks, v.12 no.6, pp.582-591
- ISSN
- 1229-2370
- 출판사
- 한국통신학회
- 협약과제
- 10MR3300, 고효율 위성 리턴링크 접속 핵심기술 개발, 오덕길
- 초록
- Probabilistic modeling and analysis of correlation metrics have been receiving considerable interest for a long period of time because they can be used to evaluate the performance of communication receivers, including satellite broadcasting receivers. Although differential correlators have a simple structure and practical importance over channels with severe frequency offsets, closedform expressions for the output distribution of differential correlators do not exist. In this paper, we present detection error probability expressions for frame synchronization using differential correlation, and demonstrate their accuracy over channel parameters of practical interest. The derived formulas are presented in terms of the Marcum Q-function, and do not involve numerical integration, unlike the formulas derived in some previous studies. We first determine the distributions and error probabilities for single-span differential correlation metric, and then extend the result to multispan differential correlation metric with certain approximations. The results can be used for the performance analysis of various detection strategies that utilize the differential correlation structure.
- KSP 제안 키워드
- Channel parameters, Correlation structure, Detection Strategies, Differential correlation, Frame synchronization, Long period, Marcum Q-function, Performance analysis, Satellite Broadcasting, Single-span, detection error