Abstract: There is disclosed a method of centralized scheduling of the access to a common radio channel in multi-hop wireless networks. The requests by the relay nodes (RN(1,1) . . . RN(n,Nn), RNi) of resources for sending uplink flows towards the base station (BS), and/or downlink flows towards relay nodes (RN(1,1) . . . RN(n,Nn), RNi) are computed by a requesting node for all links up to the destination and sent as cumulative requests for all links concerned. In case the traffic for which access to the common channel is demanded relates to different classes of service, each cumulative request includes the concatenation of a plurality of individual cumulative requests each concerning traffic belonging to a different class of service.