Efficient channel estimation using TCH codes

Bruno Lopes, Silvia Catarino, Francisco Cercas, Nuno Souto, Rui Dinis

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

Abstract

In this paper, we consider the use of TCH codes to perform channel estimation in an OFDM system, using either data multiplexed pilots or superimposed pilots over the data. TCH codes possess several properties that allow us to use them efficiently in various applications which includes channel estimation, as we address in this paper. With this objective, several performance results were obtained through simulations which allowed the evaluation of the impact of different pilot power levels and modulations, as well as the comparison of TCH against other conventional pilots. In order to cope with the interference between pilots and data, an iterative receiver with interference suppression was employed for the superimposed pilots method.

Original languageEnglish
Title of host publication2017 9th International Congress on Ultra Modern Telecommunications and Control Systems and Workshops, ICUMT 2017
PublisherIEEE Computer Society
Pages117-122
Number of pages6
Volume2017-November
ISBN (Electronic)9781538634349
DOIs
Publication statusPublished - 11 Jan 2018
Event9th International Congress on Ultra Modern Telecommunications and Control Systems and Workshops, ICUMT 2017 - Munich, Germany
Duration: 6 Nov 20178 Nov 2017

Publication series

NameInternational Conference on Ultra Modern Telecommunications and Control Systems & Workshops
PublisherIEEE Computer Society
ISSN (Print)2157-0221

Conference

Conference9th International Congress on Ultra Modern Telecommunications and Control Systems and Workshops, ICUMT 2017
CountryGermany
CityMunich
Period6/11/178/11/17

Keywords

  • channel estimation
  • data multiplexed pilots
  • implicit pilots
  • OFDM
  • TCH codes

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