Scalable DeNoise-and-Forward in bidirectional relay networks

Authors:
Jesper H. Sørensen;Rasmus Krigslund;Petar Popovski;Toshiaki Koike Akino;Torben Larsen
Affiliations:
Aalborg University, Department of Electronic Systems, Aalborg, Denmark;Aalborg University, Department of Electronic Systems, Aalborg, Denmark;Aalborg University, Department of Electronic Systems, Aalborg, Denmark;Harvard University, School of Engineering and Applied Sciences, Cambridge, Massachusetts, USA;Aalborg University, Department of Electronic Systems, Aalborg, Denmark
Venue:
Computer Networks: The International Journal of Computer and Telecommunications Networking
Year:
2010

Citing 1
Cited 1

XORs in the air: practical wireless network coding

IEEE/ACM Transactions on Networking (TON)

Review: A survey and tutorial of wireless relay network protocols based on network coding

Journal of Network and Computer Applications

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Abstract

In this paper a scalable relaying scheme is proposed based on an existing concept called DeNoise-and-Forward, DNF. We call it Scalable DNF, S-DNF, and it targets the scenario with multiple communication flows through a single common relay. The idea of the scheme is to combine packets at the relay in order to save transmissions. To ensure decodability at the end-nodes, a priori information about the content of the combined packets must be available. This is gathered during the initial transmissions to the relay. The trade-off between decodability and number of necessary transmissions is analysed and simulations show, that S-DNF is able to provide a better trade-off than traditional schemes at high SNR.