Lattice coding for the Gaussian one- and two-way relay channels with correlated noises

Anne Savard (1) , Claudio Weidmann (1)

1 ETIS - UMR 8051 - Equipes Traitement de l'Information et Systèmes

This paper investigates two classes of relay channels, the Gaussian relay channel and the Gaussian two-way relay channel, when additive noises at the relay and destination(s) are correlated. Lattice codes are used to achieve the rate region for Compress-and-Forward (relay channel) and Compress/Decode-and-Forward (two-way relay channel). Numerical calculations show that there exist particular values of the correlation coefficient such that the gap between the Cut-Set Bound (CSB) and the proposed schemes is minimal.

Domaines: Théorie de l'information et codage [math.IT]; Théorie de l'information [cs.IT]

Anne Savard, Claudio Weidmann. Lattice coding for the Gaussian one- and two-way relay channels with correlated noises. IEEE International Symposium on Information Theory (ISIT 2015), Jun 2015, Hong Kong, China. pp.2076 - 2080, ⟨10.1109/ISIT.2015.7282821⟩. ⟨hal-01260535⟩