Issue |
MATEC Web of Conferences
Volume 44, 2016
2016 International Conference on Electronic, Information and Computer Engineering
|
|
---|---|---|
Article Number | 01051 | |
Number of page(s) | 5 | |
Section | Computer, Algorithm, Control and Application Engineering | |
DOI | https://doi.org/10.1051/matecconf/20164401051 | |
Published online | 08 March 2016 |
Analytical Research on Upstream Channel Noise Monitoring
Information Engineering School, Communication University of China, Beijing, China
a Corresponding author: songjinbao@cuc.edu.cn
The Hybrid Fiber Coax (HFC) network of CATV has tremendous advantages as the platform of B-ISDN. In practical application, the upstream channel noise and the special tree-and-branch topology will make it difficult to transmit data. Hence it’s necessary to monitor and analyse the real-time characteristics of the upstream channel noise and bit-error-rate (BER), and understand present and historical situation of noise. In the paper, the cause and characteristics of each kind of noise especially the noise in the upstream channel are studied. Based on this, the formula to calculate the BER of QPSK and 16QAM signal in various environment of upstream channel noise is developed respectively. The imitation of system is made. And the performance comparison between them is given.
© Owned by the authors, published by EDP Sciences, 2016
This is an Open Access article distributed under the terms of the Creative Commons Attribution License 4.0, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
Current usage metrics show cumulative count of Article Views (full-text article views including HTML views, PDF and ePub downloads, according to the available data) and Abstracts Views on Vision4Press platform.
Data correspond to usage on the plateform after 2015. The current usage metrics is available 48-96 hours after online publication and is updated daily on week days.
Initial download of the metrics may take a while.