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6 October 1997 Fast synchronization algorithms of burst-mode 16 QAM receiver for video-on-demand applications
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Proceedings Volume 3233, Broadband Networking Technologies; (1997)
Event: Voice, Video, and Data Communications, 1997, Dallas, TX, United States
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.
© (1997) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Xiaohua Wang, Jan Codenie, Xing-Zhi Qiu, Alain Everaert, Jan Vandewege, Karel De Meyer, Willy Trog, A. De Vleeschouwer, and W. Marin "Fast synchronization algorithms of burst-mode 16 QAM receiver for video-on-demand applications", Proc. SPIE 3233, Broadband Networking Technologies, (6 October 1997);

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