Bounds for Multiple-Access Relay Channels with Feedback via Two-way Relay Channel



In this study, we introduce a new two-way relay channel and obtain an inner bound and an outer bound for the
discrete and memoryless multiple access relay channels with receiver-source feedback via two-way relay channel in
which end nodes exchange signals by a relay node. And we extend these results to the Gaussian case. By numerical
computing, we show that our inner bound is the same with one obtained by Hou-Koetter-Kramer, for the channel
with relay-source feedback.