Synchronization and channel equalization for upstream cable modem

In this paper, we propose a preamble pattern for upstream cable modem and develop the synchronization and channel equalization schemes suitable for the proposed preamble pattern. The proposed preamble consists of the concatenation of the oversample constant amplitude zero autocorrelation code (CAZAC...

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Bibliographic Details
Main Authors: Youngje Kim, Yongtae Kim, Yongwook Lee, Wangrok Oh, Whanwoo Kim
Format: Conference Proceeding
Language:English
Subjects:
Autocorrelation
Automatic frequency control
Cable TV
Channel Equalization
Coaxial cables
Communication cables
Data communication
DOCSIS
Frequency synchronization
Hybrid fiber coaxial cables
Modems
Optical fiber cables
Preamble design
Synchronization
Upstream cable modem
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Description
Summary:In this paper, we propose a preamble pattern for upstream cable modem and develop the synchronization and channel equalization schemes suitable for the proposed preamble pattern. The proposed preamble consists of the concatenation of the oversample constant amplitude zero autocorrelation code (CAZAC) sequences of length 32. Not only provides relatively good frame detection performance due to the good auto correlation properties of CAZAC sequence, the proposed preamble pattern can be easily employed in initial automatic frequency control due to the repeated structure.
ISSN:0747-668X
DOI:10.1109/ISCE.2008.4559516