A method for wireless communications, includes determining capacity of a non-cellular wireless link associated with a wireless broadcast area, determining congestion of a cellular link associated with the wireless broadcast area, determining a sublayer of a protocol of the cellular link based on the determined non-cellular wireless capacity and the determined congestion, dividing cellular data to be sent between a wireless device and a base station using the protocol of the cellular link into protocol data units of the sublayer, encapsulating the protocol data units of the sublayer into transmission units of the non-cellular link, and sending the resulting transmission units of the non-cellular wireless link.