A system comprising a first transmit device and a relay device for identifying two transmit devices (204A, 2048) that are not able to communicate directly with each other in a wireless network and for supporting wireless communication between transmit devices over a shared radio resource in the wireless network respectively, wherein: the first transmit device is arranged to: record source identities and destination identities of detected transmissions of data made by other transmit devices in the wireless network, and append a report indicating the source identity and the destination identity of each detected transmission of data, when an own transmission of data is performed, and the relay device is arranged to: receive transmissions of data performed by transmit devices in the wireless network, each transmission having the appended report which indicates previous transmissions of data detected by the respective transmit devices including the source identity and the destination identity for each detected transmission, identify the two transmit devices (204A, 2048) that are not able to communicate directly with each other, based on the reports in the received transmissions, wherein the two transmit devices are identified, when a transmission of data between the two transmit devices indicated in the report from any other transmit device is not indicated in any report from at least one of the two identified transmit devices, and forward any transmission(s) of data between the two identified transmit devices, wherein multiple transmissions of data are forwarded between the two identified transmit devices until a report from one of the two identified transmit devices indicates that the transmission of data from the other one of the two identified transmit devices has been detected twice. the first transmit device is arranged to: record source identities and destination identities of detected transmissions of data made by other transmit devices in the wireless network, and append a report indicating the source identity and the destination identity of each detected transmission of data, when an own transmission of data is performed, and record source identities and destination identities of detected transmissions of data made by other transmit devices in the wireless network, and append a report indicating the source identity and the destination identity of each detected transmission of data, when an own transmission of data is performed, and the relay device is arranged to: receive transmissions of data performed by transmit devices in the wireless network, each transmission having the appended report which indicates previous transmissions of data detected by the respective transmit devices including the source identity and the destination identity for each detected transmission, identify the two transmit devices (204A, 2048) that are not able to communicate directly with each other, based on the reports in the received transmissions, wherein the two transmit devices are identified, when a transmission of data between the two transmit devices indicated in the report from any other transmit device is not indicated in any report from at least one of the two identified transmit devices, and forward any transmission(s) of data between the two identified transmit devices, wherein multiple transmissions of data are forwarded between the two identified transmit devices until a report from one of the two identified transmit devices indicates that the transmission of data from the other one of the two identified transmit devices has been detected twice. receive transmissions of data performed by transmit devices in the wireless network, each transmission having the appended report which indicates previous transmissions of data detected by the respective transmit devices including the source identity and the destination identity for each detected transmission, identify the two transmit devices (204A, 2048) that are not able to communicate directly with each other, based on the reports in the received transmissions, wherein the two transmit devices are identified, when a transmission of data between the two transmit devices indicated in the report from any other transmit device is not indicated in any report from at least one of the two identified transmit devices, and forward any transmission(s) of data between the two identified transmit devices, wherein multiple transmissions of data are forwarded between the two identified transmit devices until a report from one of the two identified transmit devices indicates that the transmission of data from the other one of the two identified transmit devices has been detected twice.