Cooperative Diversity Using Per-User Power Control in the MAC Channel

Download Now Date Added: Jul 2010
Format: PDF

The authors consider a multiple access MAC fading channel with two users communicating with a common destination, where each user mutually acts as a relay for the other one as well as wishes to transmit its own information as opposed to having dedicated relays. They wish to evaluate the usefulness of relaying from the point of view of the system's throughput (sum rate) rather than from the sole point of view of the user benefiting from the cooperation as is typically done. They do this by allowing a trade-off between relaying and fresh data transmission through a resource allocation framework.