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Proceedings Paper

Fast synchronization algorithms of burst-mode 16 QAM receiver for video-on-demand applications
Author(s): Xiaohua Wang; Jan Codenie; Xing-Zhi Qiu; Alain Everaert; Jan Vandewege; Karel De Meyer; Willy Trog; A. De Vleeschouwer; W. Marin
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Paper Abstract

This paper describes a novel TDMA/FDMA combined 16 QAM receiver architecture developed for video-on-demand applications. A burst-operated rapid synchronization scheme is proposed which employs an efficient training preamble for overlapped operation of automatic gain control, carrier phase acquisition and symbol timing alignment. All the dedicated synchronization algorithms are digitally implemented, using field programmable gate arrays (FPGA), for a data rate of 10.8 Mbit/s. Several analytic relationships for control accuracy, acquisition time and signal to noise ratio (S/N) are derived. Experimental results demonstrate that the proposed method significantly decreases the required preamble length to 23 symbols, together with a dynamic range of 11 dB and a sensitivity of minus 56 dBm for a bit-error-rate (BER) of 5 * 10-9. The BER performance with frequency offset and input power variation is also investigated.

Paper Details

Date Published: 6 October 1997
PDF: 8 pages
Proc. SPIE 3233, Broadband Networking Technologies, (6 October 1997); doi: 10.1117/12.290477
Show Author Affiliations
Xiaohua Wang, Univ. of Ghent (Belgium)
Jan Codenie, Univ. of Ghent (Belgium)
Xing-Zhi Qiu, Univ. of Ghent (Belgium)
Alain Everaert, Univ. of Ghent (Belgium)
Jan Vandewege, Univ. of Ghent (Belgium)
Karel De Meyer, Siemens Atea (Belgium)
Willy Trog, Siemens Atea (Belgium)
A. De Vleeschouwer, Siemens Atea (Belgium)
W. Marin, Siemens Atea (Belgium)

Published in SPIE Proceedings Vol. 3233:
Broadband Networking Technologies
Seyhan Civanlar; Indra Widjaja, Editor(s)

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