Ask Question, Ask an Expert

+1-415-315-9853

info@mywordsolution.com

Ask Physics Expert

I. Messages reach at random to be sent across a communications link with a information rate of 9600 bps. The link is 70 percent utilized, and the average message length is 1000 octets. Estimate average waiting time for constant-length messages and for exponentially distributed length messages

II. Messages arrive at a switching center for a particular outgoing communications line in a Poisson manner with a mean arrival rate of 180 messages per hour. Message length is distributed exponentially with a mean length of 14,400 characters. Line speed is 9600 bps.
What is the mean waiting time in the switching center?

III+IV. Consider a bus LAN with a number of equally spaced stations with a data rate of 10 Mbps and a bus length of 1 km.

a. What is the mean time to send a frame of 1000 bits to another station, measured from the beginning of transmission to the end of reception? Assume a propagation speed of 200m/sec.

b. If two stations begin to transmit at exactly the same time, their packets will interfere with each other. If each transmitting station monitors the bus during transmission, how long before it notices interference, in second? In bit times?

 

Physics, Academics

  • Category:- Physics
  • Reference No.:- M937984

Have any Question? 


Related Questions in Physics

A pure and very thin si slice is placed inside of and in

A pure and very thin SI slice is placed inside of and in parallel with a parallel-plate capacitor which has a spatially constant electric field. The electron potential energy inside the Si varies linearly with distance i ...

A bag contains one counter known to be either white or

A bag contains one counter, known to be either white or black. A white counter is put in, the bag is shaken, and a counter is drawn out, which proves to be white. What is now the chance of drawing a white counter? [Notic ...

In a time of t seconds a particle moves a distance of s

In a time of t seconds, a particle moves a distance of s meters from its starting point, where s = 4t 3 . (a) Find the average velocity between t = 0 and t = h if: (i) h = 0.1, (ii) h = 0.01, (iii) h = 0.001. (b) Use you ...

A piece of hot iron c 450 jkg degc of mass 0500 kg and

A piece of hot iron (c = 450 J/kg .°C) of mass 0.500 kg and temperature 120° C is dunked into 2.00 liters of water at room temperature (20.0° C) a. What is the final temperature of the mix? b. What is the amount of energ ...

Algebraic physics question older railroad tracks in the usa

Algebraic Physics Question: Older railroad tracks in the USA are made of 12 meter long pieces of steel. When the tracks are laid, gaps are left between the sections to prevent buckling when the steel thermally expands. I ...

Do the same as given problem but use simplorer another

Do the same as given problem, but use SIMPLORER (another circuit/system simulator). Problem:- Use the MATLAB/Simulink block diagram shown in given figure to simulate a vector control for a small hydropower plant of 100 k ...

An object located 323 cm in front of a lens forms an image

An object located 32.3 cm in front of a lens forms an image on a screen 9.69 cm behind the lens. Find the focal length of the lens. Answer in units of cm. 010 (part 2 of 2) 10.0 points What is the magni?cation of the obj ...

As shown in the figure a small particle of chargenbspq

As shown in the figure, a small particle of charge  q = -7.0 x 10 -6 C and mass  m = 3.1 x 10 -12 kg has velocity  vo = 11.2 x 10 3 m/s as it enters a region of uniform magnetic field. The particle is observed to travel ...

This module will explore the sense of hearing we begin by

This module will explore the sense of hearing. We begin by looking at the anatomy and physiology of the ear by watching several videos.  The last video is good and enjoyable because it is a classic.  Please go to: http:/ ...

A 349 rads 33rpm record has a 503-khz tone cut in the

A 3.49 rad/s (33rpm) record has a 5.03-kHz tone cut in the groove. If the groove is located 0.100 m from the center of the record (see drawing), what is the "wavelength" in the groove?

  • 4,153,160 Questions Asked
  • 13,132 Experts
  • 2,558,936 Questions Answered

Ask Experts for help!!

Looking for Assignment Help?

Start excelling in your Courses, Get help with Assignment

Write us your full requirement for evaluation and you will receive response within 20 minutes turnaround time.

Ask Now Help with Problems, Get a Best Answer

WalMart Identification of theory and critical discussion

Drawing on the prescribed text and/or relevant academic literature, produce a paper which discusses the nature of group

Section onea in an atwood machine suppose two objects of

SECTION ONE (a) In an Atwood Machine, suppose two objects of unequal mass are hung vertically over a frictionless

Part 1you work in hr for a company that operates a factory

Part 1: You work in HR for a company that operates a factory manufacturing fiberglass. There are several hundred empl

Details on advanced accounting paperthis paper is intended

DETAILS ON ADVANCED ACCOUNTING PAPER This paper is intended for students to apply the theoretical knowledge around ac

Create a provider database and related reports and queries

Create a provider database and related reports and queries to capture contact information for potential PC component pro