Date Added: Oct 2012
In future wireless mobile networks, data rate and quality of service are expected to be comparable to those of wired deployments. To achieve this target, novel architectures must be adopted, successfully countering the disadvantages of the wireless transmission. Inspired by that, cooperative relaying was proposed because of the various gains it introduces to the network. In this paper, the authors propose a scheme consisting of multi-mode decode and forward relays facilitating the communication between a base station and a User Terminal (UT). By equipping the relays with two interfaces, they can exploit the plethora of the available wireless protocols. Also, instead of performing multi-relay transmissions, they adopt an opportunistic relaying scheme due to its simplicity and outage-optimality.