Publication in conference proceedings Q3
Efficient channel estimation using TCH codes
Bruno Lopes (Lopes, B.); Sílvia Catarino (Catarino, S.); Prof. Francisco Cercas (Cercas, F.); Nuno Souto (Souto, N.); Rui Dinis (Dinis, R.);
9th International Congress on Ultra Modern Telecommunications and Control Systems and Workshops (ICUMT)
Year (definitive publication)
2017
Language
English
Country
United States of America
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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.
Acknowledgements
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Keywords
TCH codes,Channel estimation,OFDM,Data multiplexed pilots,Implicit pilots
  • Electrical Engineering, Electronic Engineering, Information Engineering - Engineering and Technology
Funding Records
Funding Reference Funding Entity
UID/EEA/50008/2013 Fundação para a Ciência e a Tecnologia