Packet resequencing under reliable transport protocols

The author constructs mathematical models that are used to derive both message resequencing delay and buffer occupancy. The models incorporate the important system parameters, such as acknowledgement delay, error rate, for both packets and acknowledgements, number of receivers, and transmission rate. They are used to analyze several system configurations: (1) a transmitter-receiver pair communicating over a single channel; (2) multiple parallel channels, of diverse characteristics, which are available for the transmitter to send its message on; and (3) broadcast environment in which the transmitter has to send its message reliably to several receivers