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A practical physical-layer network coding scheme for the uplink of the two-way relay channel

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1 Author(s)
Stephan Pfletschinger ; Centre Tecnològic de Telecomunicacions de Catalunya, Av. Carl Friedrich Gauss 7, 08860 Castelldefels, Spain

In this paper, we consider the two-way relay channel with the two-phase protocol. In the first phase, two terminals simultaneously transmit their packets to the relay, creating a multiple-access channel (MAC), while in the second phase the relay sends a network-coded combination of the two packets to both terminals. We focus on the multiple-access phase and propose a practical decoding scheme based on practical binary block codes in order to obtain the combined packet at the relay. This scheme is found to perform well for a wide range of code rates and is superior to lattice coding at low rates.

Published in:

2011 Conference Record of the Forty Fifth Asilomar Conference on Signals, Systems and Computers (ASILOMAR)

Date of Conference:

6-9 Nov. 2011