Capacity Theorems for the Multiple-Access Relay Channel
Lalitha Sankaranarayanan, Gerhard G. Kramer, Narayan B. Mandayam · 2004
Outer bounds for the discrete memoryless multiple-access relay channel (MARC) are obtained that exploit the causal relationship between the source and relay inputs. A novel offset encoding technique that facilitates window decoding at the destination is presented for a decode-and-forward strategy, where the relay decodes the source messages before forwarding to the destination. A compress-and-forward strategy for the MARC and an amplify-and-forward strategy for the Gaussian MARC are also presented. 1