Presentation is loading. Please wait.

Presentation is loading. Please wait.

NET 222: COMMUNICATIONS AND NETWORKS FUNDAMENTALS ( NET 222: COMMUNICATIONS AND NETWORKS FUNDAMENTALS (PRACTICAL PART) Tutorial 5 : Chapter 8 Data & computer.

Published byRudolph Wilkinson Modified over 8 years ago

Similar presentations

Presentation on theme: "NET 222: COMMUNICATIONS AND NETWORKS FUNDAMENTALS ( NET 222: COMMUNICATIONS AND NETWORKS FUNDAMENTALS (PRACTICAL PART) Tutorial 5 : Chapter 8 Data & computer."— Presentation transcript:

1 NET 222: COMMUNICATIONS AND NETWORKS FUNDAMENTALS ( NET 222: COMMUNICATIONS AND NETWORKS FUNDAMENTALS (PRACTICAL PART) Tutorial 5 : Chapter 8 Data & computer communications Networks and Communication Department 1

2 Chapter 8 pages 271 (Data & computer communications) Networks and Communication Department 2  Problems:  8.1 (a)  8.9  8.11(b)  8.13

3 Question Networks and Communication Department 3  8.1 The information in four analog signals is to be multiplexed and transmitted over a telephone channel that has a 400- to 3100-Hz bandpass. Each of the analog baseband signals is bandlimited to 500 Hz. Design a communication system (block diagram) that will allow the transmission of these four sources over the telephone channel using  a. Frequency division multiplexing Show the block diagrams of the complete system, including the transmission, channel, and reception portions. Include the bandwidths of the signals at the various points in the systems.

4 Answer Networks and Communication Department 4

5 Question Networks and Communication Department 5  8.9 Twenty-four voice signals are to be multiplexed and transmitted over twisted pair. What is the bandwidth required for FDM?  NOTE: Assume that the voice signal frequency is 4 KHz.

6 Answer Networks and Communication Department 6  The required bandwidth for FDM is 24 × 4 = 96 kHz.

7 Question Networks and Communication Department 7  8.11 A time division multiplexer is used to combine the data streams of a number of terminals, each terminal needs 110-bps for data transmission over a 2400-bps digital line. Assume that at least 3% of the line capacity is reserved for some uses.  b. Determine the number of terminals that can be accommodated by the multiplexer.

8 Answer Networks and Communication Department 8  Available capacity = 2400 bps - 3% =2400 – (2400 - 3%) = 2328 bps OR 2400 – (2400 – 3/100)= 2328 bps  Number of terminals =2328/110=21.6=21 terminals

9 Question Networks and Communication Department 9  8.13 Ten 9600-bps lines are to be multiplexed using TDM. What is the total capacity required for synchronous TDM?

10 Answer Networks and Communication Department 10  Total capacity = 9600 bps × 10 =96000 bps =96 kbps

11 Any Questions ? The End 11 Networks and Communication Department

Download ppt "NET 222: COMMUNICATIONS AND NETWORKS FUNDAMENTALS ( NET 222: COMMUNICATIONS AND NETWORKS FUNDAMENTALS (PRACTICAL PART) Tutorial 5 : Chapter 8 Data & computer."

Similar presentations

CMP206 – Introduction to Data Communication & Networks Lecture 3 – Bandwidth.

CMP206 – Introduction to Data Communication & Networks Lecture 3 – Bandwidth.
6.1 Chapter 6 Bandwidth Utilization: Multiplexing and Spreading Copyright © The McGraw-Hill Companies, Inc. Permission required for reproduction or display.

6.1 Chapter 6 Bandwidth Utilization: Multiplexing and Spreading Copyright © The McGraw-Hill Companies, Inc. Permission required for reproduction or display.
Data Communications and Networking

Data Communications and Networking
Note Bandwidth utilization is the wise use of available bandwidth to achieve specific goals. Efficiency can be achieved by multiplexing; privacy and.

Note Bandwidth utilization is the wise use of available bandwidth to achieve specific goals. Efficiency can be achieved by multiplexing; privacy and.
McGraw-Hill©The McGraw-Hill Companies, Inc., 2004 Chapter 6 Multiplexing.

McGraw-Hill©The McGraw-Hill Companies, Inc., 2004 Chapter 6 Multiplexing.
Bandwidth Utilization: Multiplexing and Spreading

Bandwidth Utilization: Multiplexing and Spreading
Multiplexing Multiplexing is the set of techniques that allows the simultaneous transmission of multiple signals across a single data link. A Multiplexer.

Multiplexing Multiplexing is the set of techniques that allows the simultaneous transmission of multiple signals across a single data link. A Multiplexer.
6.1 Chapter 6 Bandwidth Utilization: Multiplexing and Spreading Copyright © The McGraw-Hill Companies, Inc. Permission required for reproduction or display.

6.1 Chapter 6 Bandwidth Utilization: Multiplexing and Spreading Copyright © The McGraw-Hill Companies, Inc. Permission required for reproduction or display.
Ch. 8 Multiplexing.

Ch. 8 Multiplexing.
Lab 2 COMMUNICATION TECHNOLOGY II. Capacity of a System The bit rate of a system increases with an increase in the number of signal levels we use to denote.

Lab 2 COMMUNICATION TECHNOLOGY II. Capacity of a System The bit rate of a system increases with an increase in the number of signal levels we use to denote.
1 K. Salah Module 3.3: Multiplexing WDM FDM TDM T-1 ADSL.

1 K. Salah Module 3.3: Multiplexing WDM FDM TDM T-1 ADSL.
5.1 Background Information Modulation Techniques (Chapter 5) Copyright © The McGraw-Hill Companies, Inc. Permission required for reproduction or display.

5.1 Background Information Modulation Techniques (Chapter 5) Copyright © The McGraw-Hill Companies, Inc. Permission required for reproduction or display.
Chapter 10: Transmission Efficiency Business Data Communications, 4e.

Chapter 10: Transmission Efficiency Business Data Communications, 4e.
6.1 Chapter 6 Bandwidth Utilization: Multiplexing and Spreading Copyright © The McGraw-Hill Companies, Inc. Permission required for reproduction or display.

6.1 Chapter 6 Bandwidth Utilization: Multiplexing and Spreading Copyright © The McGraw-Hill Companies, Inc. Permission required for reproduction or display.
Module 2.2: ADSL, ISDN, SONET

Module 2.2: ADSL, ISDN, SONET
6.1 Chapter 6 Bandwidth Utilization: Multiplexing and Spreading Copyright © The McGraw-Hill Companies, Inc. Permission required for reproduction or display.

6.1 Chapter 6 Bandwidth Utilization: Multiplexing and Spreading Copyright © The McGraw-Hill Companies, Inc. Permission required for reproduction or display.
 Transmitting two or more signals simultaneously can be accomplished by setting up one transmitter- receiver pair for each channel, but this is an expensive.

 Transmitting two or more signals simultaneously can be accomplished by setting up one transmitter- receiver pair for each channel, but this is an expensive.
Net 222: Communications and networks fundamentals (Practical Part)

Net 222: Communications and networks fundamentals (Practical Part)
1 Topic 4: Physical Layer - Chapter 10: Transmission Efficiency Business Data Communications, 4e.

1 Topic 4: Physical Layer - Chapter 10: Transmission Efficiency Business Data Communications, 4e.
Digital multiplexers In TDM a group of analog signals are sampled sequentially in time at a common sampling rate and then multiplexed for transmission.

Digital multiplexers In TDM a group of analog signals are sampled sequentially in time at a common sampling rate and then multiplexed for transmission.

Similar presentations

Ads by Google