Time-Domain Precoding for LTE-over-Copper Systems

Research output: Chapter in Book/Report/Conference proceedingPaper in conference proceeding

Abstract

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.

Details

Authors
Organisations
External organisations
  • Ericsson AB
Research areas and keywords

Subject classification (UKÄ) – MANDATORY

  • Telecommunications
Original languageEnglish
Title of host publication2016 IEEE International Conference on Communications (ICC)
PublisherIEEE--Institute of Electrical and Electronics Engineers Inc.
Pages1-6
Number of pages6
ISBN (Electronic)978-1-4799-6664-6 , 978-1-4799-6665-3
Publication statusPublished - 2016 Jul
Publication categoryResearch
Peer-reviewedYes
EventIEEE International Conference on Communications, 2016 - Kuala Lumpur, Malaysia
Duration: 2016 May 232016 May 27

Conference

ConferenceIEEE International Conference on Communications, 2016
Abbreviated titleICC 2016
CountryMalaysia
CityKuala Lumpur
Period2016/05/232016/05/27