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Error Probability Analysis for the Initial Acquisition Using Sum Differential Correlation Methods  

Kim, Sang-Tae (서강대학교 전자공학과 디지털전송연구실)
Kim, Jae-Won (서강대학교 전자공학과 디지털전송연구실)
Chang, Dae-Ig (한국전자통신연구원)
Kim, Pan-Soo (한국전자통신연구원)
Sung, Won-Jin (서강대학교 전자공학과 디지털전송연구실)
Abstract
In communication systems, initial acquisition is required for the reliable transmission performance, and the analysis of the acquisition performance over various communication environments including different signal-to-noise ratios plays an important role in communication system design. Usage of differential correlation methods in initial synchronization procedure is desired when frequency offsets exist, and additional performance improvement can be achieved through proper modifications of conventional correlation schemes. In this paper, we derive the error probability of the initial acquisition and express it in terms of the Marcum Q-function, via statistical modeling of the differential correlator output. The result is generalized to the error probabilities of the extended differential correlation methods using the complex- and magnitude-sum of the correlator outputs. The derived probabilities can be applied for the acquisition performance verification of various communication systems including the DVB-S2 standard.
Keywords
Differential correlation; Initial acquisition; Satellite transmission; Mis-detection probability; Digital video broadcasting;
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