A half-duplex rateless coded protocol for a fading multi-way relay channel

Abstract

We consider a multiuser multi-way relay channel where all the users need to communicate with the help of a single relay terminal. All the links experience quasi-static Rayleigh fading and there is no CSI available at the transmitters. We propose a half-duplex rateless coded relaying protocol for this model and identify its benefits over fixed-rate relaying strategies. Using outage probability and outage rate for performance comparison, we present simulation results which indicate the superiority of our scheme, followed by a discussion about the possible extensions of this work.