A wireless network for taxis uses a radio channel that provides a bit rate of 4800 bps. Each message has 50 characters (8 bits/char). The network employs slotted ALOHA. a) What is the upper bound of...

A wireless network for taxis uses a radio channel that provides a bit rate of 4800 bps. Each message has 50 characters (8 bits/char). The network employs slotted ALOHA. a) What is the upper bound of the number of taxis that can be served if each taxi generates a message every minute following the Poisson process. b) What is the expected packet delay with 100 taxis assuming the average retransmission delay is four seconds.