Optimal Tomlinson-Harashima precoding for physical layer network coding

Schmidt AC, Schober R, Gerstacker W (2013)

Publication Language: English

Publication Type: Conference contribution

Publication year: 2013

Publisher: IEEE

Event location: Shanghai CN

ISBN: 978-1-4799-0110-4

DOI: 10.1109/WCNCW.2013.6533335

Abstract

We consider a two-way relaying system employing physical layer network coding in channels suffering from frequency-selective fading. In order to mitigate the distortions introduced by the channel, Tomlinson-Harashima precoding is applied at the source nodes. We introduce an optimal precoding scheme that provides intersymbol interference free source-to-relay transmission without requiring identical overall channel impulse responses, which is in contrast to previously proposed equalization approaches. The performance of our novel approach is compared against that of a benchmark precoding scheme, motivated by the optimal decision-feedback equalization for physical layer network coding, which creates identical overall channel impulse responses in order to be able to use identical feedback filters for precoding at both source nodes.

Authors with CRIS profile

Armin Christian Schmidt Lehrstuhl für Digitale Übertragung Robert Schober Lehrstuhl für Digitale Übertragung Wolfgang Gerstacker Lehrstuhl für Digitale Übertragung

How to cite

APA:

Schmidt, A.C., Schober, R., & Gerstacker, W. (2013). Optimal Tomlinson-Harashima precoding for physical layer network coding. In IEEE (Eds.), Proceedings of the 2013 IEEE Wireless Communications and Networking Conference Workshops (WCNCW). Shanghai, CN: IEEE.

MLA:

Schmidt, Armin Christian, Robert Schober, and Wolfgang Gerstacker. "Optimal Tomlinson-Harashima precoding for physical layer network coding." Proceedings of the 2013 IEEE Wireless Communications and Networking Conference Workshops (WCNCW), Shanghai Ed. IEEE, IEEE, 2013.

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