Ask Question, Ask an Expert


Ask Computer Engineering Expert

problem1. Describe what you understand by Nyquist Capacity Theorem?

problem2. Assume we wish to transmit at the rate of 64 kbps over a 4 kHz noisy but error-free channel. What is minimum SNR in dB required to achieve this?

problem3. How is the rate improved when we double the bandwidth?

problem4. How is the rate enhanced when we double S/N?

problem5. Now assume that the above uses QPSK modulation becomes error-prone, what is the minimum signal power that is required to sustain the data rate of 64 kbps with a BER of 10-5 at 25 degrees Celsius?

1527_symbol error table.jpg

problem6.  “Pulse Code Modulation (PCM), as used in the telephony, samples a signal at 8 kHz using 256 quantization levels”.

i) Outline how this scheme works with the assist of sketches and, by reference to the Nyquist’s Sampling Theorem, describe how the sampling rate was chosen.

ii) Compute the SNR in dB for the quantization error of this PCM setup.

iii) Compute the data rate achievable.

problem7. Give three merits which digital transmission has over analogue transmission.

problem8. describe three types of communication impairments which you are familiar with and, with reference to a standard communication model, state where the above-mentioned impairments usually occur.

Computer Engineering, Engineering

  • Category:- Computer Engineering
  • Reference No.:- M94565

Have any Question? 

Related Questions in Computer Engineering

1 how does a signature-based idps differ from a

1. How does a signature-based IDPS differ from a behavior-based IDPS? 2. What is a monitoring (or SPAN) port? What is it used for? 3. List and describe the three control strategies proposed for IDPS control.

Write methodsthat compute the area and the perimeter of the

Write methods that compute the area and the perimeter of the ellipse e. Add these methods to a class Geometry. The challenging part of this assignment is to find and implement an accurate formula for the perimeter. Why d ...

Creating a new sales and inventory management system for

Creating a new sales and inventory management system for pet supply store. System allows 1) sales orders to be entered by clerk, 2) total price calculated and 3) inventory updated. Sales may be in person or over the phon ...

Welcome to the pen testing firm of bodgit and run we hope

Welcome to the Pen Testing firm of Bodgit and Run, we hope you will find your work with our company both entertaining (for you) and profitable (for us). To this end we have a client who wants us to do a risk assessment o ...

Consider a game tree in which there are six marbles and

Consider a game tree in which there are six marbles, and players 1 and 2 take turns picking from one to three marbles. The player who takes the last marble loses the game. a. Draw the complete game tree for this game. b. ...

1 object x has two simple variables how can snmp refer to

1. Object x has two simple variables. How can SNMP refer to the instance of each variable? 2. Object x has one table with two columns. The table at this moment has three rows with the contents shown below. If the table i ...

We investigate the weaknesses that arise in elgamal

We investigate the weaknesses that arise in Elgamal encryption if a public key of small order is used. We look at the following example. Assume Bob uses the group Z∗ 29 with the primitive element α = 2. His public key is ...

Components of a telecommunication system and basic computer

Components of a Telecommunication System and Basic Computer Network Components are major components of a business : What are the main differences of these two systems? Do you need to have both of them to support your com ...

1 igs need dc-ac ac-dc and ac-ac converters describe one

1. IGs need dc-ac, ac-dc, and ac-ac converters. Describe one application, relevant for IG-based energy system, for each of those power conversions. 2. Where are dc-dc converters used in IG systems?

Docking percolation and fire often when looking at the fire

Docking percolation and fire Often when looking at the Fire model we ask what density of trees is necessary to reach the right side of the screen. We can ask the same question about the porosity value in the Percolation ...

  • 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

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

Describe what you learned about the impact of economic

Describe what you learned about the impact of economic, social, and demographic trends affecting the US labor environmen