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A Fast Scattered Pilot Synchronization Algorithm for DVB-H receiver modem  

Um Jung-Sun (성균관대학교 전자전기공학과 통신시스템연구실)
Do Joo-Hyun (성균관대학교 전자전기공학과 통신시스템연구실)
Lee Hyun (한국전자통신연구원 디지털방송연구단 방송시스템연구그룹)
Choi Hyung-Jin (성균관대학교 전자전기공학과 통신시스템연구실)
Publication Information
The Journal of Korean Institute of Communications and Information Sciences / v.30, no.11A, 2005 , pp. 1081-1091 More about this Journal
Abstract
Unlike conventional DVB-T transmission with the streaming method, DVB-H system based on the IPDC(IP Data Casting) method uses Time-slicing scheme to achieve the maximization of portability by reducing the power consumption of a receiver. To enhance the power efficiency of the receiver, Time-slicing scheme controls the receiver operation to perform only for corresponding burst in specific time slot. The additional power saving can also be achieved by reducing the required time for synchronization. In this paper, we propose a fast scattered pilot synchronization algorithm, which detects the pilot pattern of currently received OFDM symbol. The proposed scheme is based on the correlation between the adjacent subcarriers of potential scattered pilot position in two consecutively received OFDM symbols. Therefore, it can reduce the time for the scattered pilot synchronization within two symbols as com-pared with the conventional method used for DVB-T. And the proposed algorithm has better performance than the two schemes proposed by Nokia for DVB-H and the method using correlation with reference signal. Extensive com-puter simulation is performed based on ETSI EN300 744 ETSI and performance results show that the proposed algorithm has more efficient and stable operation than the conventional schemes.
Keywords
DVB-H; Scattered Pilot; Synchronization;
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  • Reference
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