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Conference Paper
Upstream Channel Synchronization for Cable Modem System
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- Authors
- Young Je Kim, Hyun Ju Ha, Jun Seo Lee, Wang Rok Oh, Whan Woo Kim, Eung Don Lee, Yun-Jeong Song
- Issue Date
- 2007-02
- Citation
- International Conference on Advanced Communication Technology (ICACT) 2007, pp.1864-1867
- Publisher
- IEEE
- Language
- English
- Type
- Conference Paper
- Abstract
- The upstream of digital cable modem is a burst mode transmission system, where a burst contains the preamble and data. In this paper, we consider algorithms for the symbol timing, carrier frequency- and phase-offset recovery for the upstream cable modem, that are compliant to DOCSIS 2.0. Several algorithms are tested and verified to find the best algorithm for each of the three recovery blocks, respectively. To fit to the DOCSIS specification, Oerder & Meyr's is chosen for the timing recovery algorithm, Mengali & Morelli's is chosen for the carrier frequency-offset recovery algorithm and Cartwright's is chosen for blind carrier phase recovery. We decide the optimal preamble length for these algorithms and check the error variance. Finally, we show the error performance of the entire system.
- KSP Keywords
- Carrier frequency, Carrier phase recovery, Error performance, Mode transmission, Phase offset, Recovery algorithm, Symbol Timing, Timing recovery, Transmission system, burst mode, error variance