Computers and Technology

The objective of this exercise is to realize how high distance and high bandwidth affect the performance of stop and wait. The distance from Earth to a distant planet is approximately 9 x 10° km. Assume that the frame size is 8 Kbits and the speed of light is 3 108 m/s. Assume that the bit rate is 10 Mbps. a) What is the efficiency (channel utilization) if a stop-and-wait protocol is used?
b) Suppose we use a window protocol. What should be the window size in frames to achieve the maximal efficiency (channel utilization)?
c) Plot the efficiency versus the distance when the bit rate is set to 10 Mbps. Discuss this plot.
d) Plot the efficiency versus the bit rate when distance is set to 9 x 109 km. Discuss this plot.

answer
Answers: 3

Other questions on the subject: Computers and Technology

image
Computers and Technology, 22.06.2019 01:00, keasiabradley
Search the web for two examples of digital art that you like. the examples must be from different mediums (example: one digital photo and one computer animation not two computer animations). compose an essay for each example you choose about why the piece appeals to you, and identify the medium used.
Answers: 1
image
Computers and Technology, 22.06.2019 18:00, Geo777
Suppose an astronomer discovers a large, spherical-shaped body orbiting the sun. the body is composed mostly of rock, and there are no other bodies sharing its orbit. what is the best way to categorize this body? a. planet b. moon c. comet d. asteroid
Answers: 1
image
Computers and Technology, 22.06.2019 22:20, kaiyerecampbell95
Pp 4.1 design and implement a class called sphere that contains instance data that represents the sphere’s diameter. define the sphere constructor to accept and initialize the diameter and include getter and setter methods for the diameter. include methods that calculate and return the volume and surface area of the sphere (see pp 3.5 for the formulas). include a tostring method that returns a one-line description of the sphere. create a driver class called multisphere, whose main method instantiates and updates several sphere objects.
Answers: 1
image
Computers and Technology, 22.06.2019 22:40, shaylawaldo11
Write a program that defines symbolic names for several string literals (chars between quotes). * use each symbolic name in a variable definition. * use of symbolic to compose the assembly code instruction set can perform vara = (vara - varb) + (varc - vard); ensure that variable is in unsigned integer data type. * you should also further enhance your symbolic logic block to to perform expression by introducing addition substitution rule. vara = (vara+varb) - (varc+vard). required: debug the disassembly code and note down the address and memory information.
Answers: 3
Do you know the correct answer?
The objective of this exercise is to realize how high distance and high bandwidth affect the perform...

Questions in other subjects: