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A novel multiplexing scheme for integrated networks characterized by the coexistence of circuit-switched and packet-switched traffic is d e scribed in thie paper. The new scheme is realized by a reinforcement of the basic movable boundary hybrid-switching technique by incorporating a packet queuesize dependent adaptive TASI mechanism. A detailed queueing model representation of the multiplexer is given and an analytical evaluation of several performance parameters of interest, such aa the blocking probability of the packet-switched subsystem, the freezeout probability of the circuit-switched subsystem and the expected number of packets in the packet queue, is conducted. The results of some nnmerical studies are presented to describe the multiplexer performance under different conditions. Of particular significance resulting from these studies is the tradeoff between the freezeout probability performance of the circuit-switched subsystem and the packet blocking performance of the packet-switched subsystem which could be exploited in a systematic design of the integrated multiplexing scheme for specific applications.

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