Performance analysis of physical layer network coding in two-way relay channels

Authors:
Raymond H. Y. Louie;Yonghui Li;Branka Vucetic
Affiliations:
Telecommunications Lab, School of Electrical and Information Engineering, University of Sydney, Australia and Wireless Technologies Laboratory, ICT Centre, CSIRO, Sydney, Australia;Telecommunications Lab, School of Electrical and Information Engineering, University of Sydney, Australia;Telecommunications Lab, School of Electrical and Information Engineering, University of Sydney, Australia
Venue:
GLOBECOM'09 Proceedings of the 28th IEEE conference on Global telecommunications
Year:
2009

Citing 6
Cited 0

Wireless Communications

Wireless Communications
XORs in the air: practical wireless network coding

Proceedings of the 2006 conference on Applications, technologies, architectures, and protocols for computer communications
End-to-end performance of transmission systems with relays over Rayleigh-fading channels

IEEE Transactions on Wireless Communications
Exact symbol error probability of a Cooperative network in a Rayleigh-fading environment

IEEE Transactions on Wireless Communications
Digital Communications Over Fading Channels (M.K. Simon and M.S. Alouini; 2005) [Book Review]

IEEE Transactions on Information Theory
Spectral efficient protocols for half-duplex fading relay channels

IEEE Journal on Selected Areas in Communications

Quantified Score

Hi-index	0.00

Visualization

Abstract

This paper investigates the performance of practical physical layer network coding (PLNC) schemes for two-way relay channels. We consider a network consisting of two source nodes and a single relay node, which is used to aid communication between the two source nodes. For this scenario, we investigate various transmission schemes, where transmission takes place over two, three or four time slots. We show that the two time slot PLNC scheme offers a higher maximum sum-rate, but a lower sum-bit error rate (BER) than the four time slot transmission scheme for a number of practical scenarios. We also investigate a three time slot PLNC scheme, which we show offers a good compromise between the two time slot PLNC and four time slot transmission schemes, and also achieves the best maximum sum-rate and/or sum-BER in certain practical scenarios. To facilitate comparison, we derive new closed-form expressions for the outage probability, maximum sum-rate and sum-BER.