Huang, Tao, Yuan, Jinhong, and Li, Jing (2013) Analysis of Compute-and-Forward with QPSK in Two-way Relay Fading Channels. In: Proceedings of 2013 Australian Communications Theory Workshop. pp. 75-80. From: AusCTW 2013: Australian Communications Theory Workshop, 29 January - 01 February 2013, Adelaide, SA, Australia.

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Abstract

In this paper, the error performance of compute-and-forward with QPSK over Rayleigh fading two-way relay channels is analyzed. We investigate the optimal way to select the computation coefficients to minimize the error probability at the relay. This is equivalent to maximizing the minimum Euclidean distance between the network coded messages on a superimposed two-user constellation at the relay. We derive the performance upper bound for the decoding of the network coded messages at the relay in a closed form. Both analytical results and simulation results demonstrate that when QPSK is employed, the diversity order of decoding the network coded messages at the relay can reach 1, rather than being halved as reported in previous literature where 4-PAM was considered.

Item ID:	93560
Item Type:	Conference Item (Research - E1)
ISBN:	978-1-4673-4675-7
Copyright Information:	© 2013 IEEE.
Funders:	Australian Research Council (ARC)
Projects and Grants:	ARC DP110104995
Date Deposited:	19 Aug 2026 02:28
FoR Codes:	40 ENGINEERING > 4099 Other engineering > 409902 Engineering instrumentation @ 100%
SEO Codes:	28 EXPANDING KNOWLEDGE > 2801 Expanding knowledge > 280110 Expanding knowledge in engineering @ 100%
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