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Time-Domain Precoding for LTE-over-Copper Systems

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Author

Summary, in English

Crosstalk cancellation is a crucial issue for traditional digital subscriber line systems. For LTE-over-copper systems, however, the need for crosstalk cancellation varies depending on the analog fronthauling architecture and its parameters. A crosstalk handler that is decoupled as much as possible from the rest of the system architecture is thus preferred. Therefore, we propose a time-domain precoding scheme specifically in downstream direction to separate the precoding unit from the LTE signal flow, and perform crosstalk cancellation in an on-demand manner. Estimation of all direct and crosstalk paths is assisted by LTE cell-specific reference signals. The time-domain precoder transforms the interference channel into a crosstalk-free channel with identical direct paths, which allows for low-complexity inter-symbol interference mitigation. We evaluate the concept in terms of signal-to-noise ratio provided for LTE signals using measured wireline channel data.

Publishing year

2016-07

Language

English

Pages

1-6

Publication/Series

2016 IEEE International Conference on Communications (ICC)

Document type

Conference paper

Publisher

IEEE - Institute of Electrical and Electronics Engineers Inc.

Topic

  • Telecommunications

Conference name

IEEE International Conference on Communications, 2016

Conference date

2016-05-23 - 2016-05-27

Conference place

Kuala Lumpur, Malaysia

Status

Published

Research group

  • Broadband Communication

ISBN/ISSN/Other

  • ISBN: 978-1-4799-6664-6
  • ISBN: 978-1-4799-6665-3