Fair Resource Allocation for the Relay Backhaul Link in LTE-Advanced
In this paper, the authors revisit the issue of fair resource allocation in relay-enhanced wireless networks. Their focus this time is on Type-1a relays as proposed for LTE-Advanced. The latter operate as out-band relays, i.e., the backhaul and relay access link use separate carrier frequencies. If carrier aggregation is applied at the macro base station, the backhaul carrier may also contain part of the macro access link. Assuming full buffer traffic on the downstream, they demonstrate how similar resource partitioning strategies at the base station as proposed for in-band relays can be also applied in the out-band case.