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A Simple Enhancement of Coherent Detection for Initial Frame Synchronization in W-CDMA Systems  

Choi, Won-Eung (Hankuk University of Foreign Studies)
Joo, Jung-Suk (Hankuk University of Foreign Studies)
Publication Information
Journal of the Institute of Electronics Engineers of Korea TC / v.47, no.10, 2010 , pp. 43-48 More about this Journal
Abstract
In general, in order to reduce an initial cell searching time, W-CDMA systems adopt a three-step cell search scheme: slot synchronization, frame synchronization, and primary scrambling code identification. We consider the second step (frame synchronization), in which a coherent detection using P-SCH (primary synchronization channel) is possible. In this paper, we propose a new coherent detection scheme, where a first order recursive filter is used to enhance channel estimation performance. Computer simulation results indicate that the detection performance of the proposed scheme can be robust over large range of frequency offset.
Keywords
W-CDMA system; initial frame synchronization; first order recursive filter;
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1 J. Moon and Y. Lee, "Rapid slot synchronization in the presence of large frequency offset and Doppler spread in WCDMA systems," IEEE Trans. Wireless Commun., Vol. 4, no. 4, pp. 1325-1330, July 2005.   DOI
2 Physical channels and mapping of transport channels onto physical channel (FDD), 3GPP TS 25.211, Dec. 2005.
3 Spreading and modulation (FDD), 3GPP TS 25.213, Mar. 2006.
4 Y. E. Wang and T. Ottosson, "Cell search in W-CDMA," IEEE J. Sel. Areas Commun., Vol. 18, no. 8, pp. 1470-1482, Aug. 2000.   DOI   ScienceOn
5 H. Eslami and A. M. Eltawil, "Implementation of a carrier frequency recovery loop for MIMO-CDMA Systems," Proc. IEEE WCNC2006, pp. 1450-1454, Las Vegas, USA, April 2006.
6 Y. K. Jeong, O. Shin and K. B. Lee, "Fast slot synchronization for intercell asynchronous DS/CDMA systems," IEEE Trans. Wireless Commun., Vol. 1, no. 2, pp. 353-360, April 2002.   DOI   ScienceOn