20105ee132B_1_hw8

20105ee132B_1_hw8 - UCLA Electrical Engineering Department...

Info iconThis preview shows pages 1–2. Sign up to view the full content.

View Full Document Right Arrow Icon
UCLA Electrical Engineering Department EE132B HW Set #8 Professor Izhak Rubin Problem 1 Consider a communication system which queues arriving messages and then transmits them on a first- come first-served (FCFS) basis across a single outgoing link. Messages arrive in accordance with a geometric point process, and the number of packets in each message is geometrically distributed. The transmission time of one packet is equal to the slot length. a. Let the service rate be equal to 0.85 messages / slot. Calculate the mean queue size and the mean message waiting time for three cases: i. Message arrival rate = 0.4 messages / slot. ii. Message arrival rate = 0.8 messages / slot. iii. Message arrival rate = 10.0 messages / slot. b. For each of the three arrival rate cases considered in part a. above, compute the probability that a message will have to wait for the start of its transmission for longer than 5 slots. Problem 2
Background image of page 1

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
Image of page 2
This is the end of the preview. Sign up to access the rest of the document.

Page1 / 2

20105ee132B_1_hw8 - UCLA Electrical Engineering Department...

This preview shows document pages 1 - 2. Sign up to view the full document.

View Full Document Right Arrow Icon
Ask a homework question - tutors are online