In one, non-limiting exemplary embodiment, a method includes: sending a multicast transmission from a source device to a base station in a wireless communication system, where the multicast transmission is for a plurality of receiving devices including a local receiving device, where the source device and the local receiving device are members of a local cluster that is at least partially located in a cell serviced by the base station; receiving, by the source device, a transmission of feedback information as it is transmitted from the local receiving device to the base station; and in response to the source device determining that the feedback information includes an indication that the local receiving device did not correctly receive the multicast transmission, sending a retransmission of the multicast transmission from the source device directly to the local receiving device.