Instantaneous Relaying for the 3-Way Relay Channel with Circular Message Exchanges
arXiv:1511.07338 · doi:10.1109/ACSSC.2015.7421173
Abstract
The 3-user discrete memoryless multi-way relay channel with circular message exchange and instantaneous relaying is investigated. We first show that this channel is effectively a 3-user interference channel with receiver message side information for every fixed (and instantaneous) relay mapping. Then, we extend the Han-Kobayashi coding scheme to this channel. Finally, we apply these results to Gaussian channels with amplify-and-forward relaying and present numerical results showing the gain of the proposed scheme compared to the state of the art.
In Proceedings of the Forty-Ninth Asilomar Conference on Signals, Systems, and Computers, Nov. 2015, Pacific Grove, CA