The goal of the study is the development and experimental verification of the applicability of a new data streams distribution algorithm between wireless local and global communication networks. The object of research is the data streams dynamic allocation algorithm between the wireless local and wide area networks such as Wi-Fi and LTE. The research subject is the dependent runtime data flow allocation algorithm between wireless local and wide area networks. The authors developed a dynamic multiplexing algorithm for heterogeneous communication channels that takes into account the dynamics of evaluating the communication channels capacity and channel combinations, investigated the running time of the channel selection algorithm, which showed that the unconditional priority strategy was more effective than the quota strategy. The implemented prototype system can be used in a multiprotocol routing subsystem.