Question: A communication line capable of transmitting at a rate of 50 Kbits/sec will be used to accommodate 10 sessions each generating Poisson traffic at a rate 150 packets/min. Packet lengths are exponentially distributed with mean 1000 bits.
(a) For each session, find the average number of packets in queue, the average number in the system, and the average delay per packet when the line is allocated to the sessions by using:
(1) 10 equal-capacity time-division multiplexed channels.
(2) Statistical multiplexing.
(b) Repeat part (a) for the case where five of the sessions transmit at a rate of 250 packets/min while the other five transmit at a rate of 50 packets/min.