A transceiver system for dual‐simplex high‐bit‐rate digital subscriber lines
作者:
Shyue‐Win Wei,
Hou‐Chun Ting,
Sheu‐Chih Cheng,
期刊:
Journal of the Chinese Institute of Engineers
(Taylor Available online 1994)
卷期:
Volume 17,
issue 6
页码: 863-869
ISSN:0253-3839
年代: 1994
DOI:10.1080/02533839.1994.9677655
出版商: Taylor & Francis Group
关键词: high‐bit‐rate digital subscriber lines (HDSL);circuits and systems
数据来源: Taylor
摘要:
High bit‐rate digital subscriber lines (HDSL) technology is a new technology that may provide bi‐directional transmission at a rate of 1.544 Mb/s in conventional copper wires. A transceiver system for dual‐simplex (DSX)‐HDSL is presented. Simulation results show that the DSX‐HDSL system combined with simple pair‐selection can provide 18Kft/24AWG service distance without line repeaters. In the presented DSX‐HDSL transceiver, 2B1Q code with (1‐D) precoding is used to reduce the inter‐symbol interference (ISI) and the dynamic range of signal. Hence, a 12‐bit or less A/D converter can satisfy the performance requirement. In addition, another switchable (1‐D) filter is used in the receiver to shorten the duration of channel response, therefore a (5, 32) hybrid‐decision‐feedback‐equalizer (DFE) can obtain an adequate performance.
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