ECEN4533 Data Communications
Lecture #15        14 February 2011
Dr. George Scheets

ECEN4533 Data Communications
Lecture #16 16 February 2011
Dr. George Scheets

ECEN4533 Data Communications
Lecture #17 18 February 2011
Dr. George Scheets

RedNeckNet
Low Bid

Circuit Switched TDM

Packet Switched StatMux

Queue Length

Queue Length

Queue Length @ 100% Load
Output capacity = 7 units
Input = 7 units on average (two dice rolled)

Queue Length @100% Load
Will tend to increase w/o Bound.

Useful Probability Theorems

Probability Density Functions

Packet Switched StatMux

Moments

Packet Switched StatMux

1995 OSU Backbone Packet Histogram

2004 OSU Backbone Packet Histogram

IM Traffic Message Size

Traffic in 0.1 second intervals

Flip coin 50 times, repeat 400x

Slide 21