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261332@2557/2

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Karn Patanukhom

on 6 January 2015

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Transcript of 261332@2557/2

DATA & COMPUTER COMMUNICATIONS
261332
A B+ B C+ C D+ D F
A A A B+ B+ B B C+ C
B+
B
C+
C
D+
D
F
A
B+
B+
B
B
C+
C
B+
B+
B
B
C+
C+
C
B+
B
B
C+
C+
C
D+
B
B
C+
C+
C
C
D+
B
C+
C+
C
C
D+
D
C+
C+
C
C
D+
D+
F
C+
C
C
D+
D+
D
F
C
D+
D+
D
F
F
F
EVALUATION
PRE-QUIZ
[1] What is communication?

[2] Write about the ideal communication
systems.

[3] Imagine and write about
the communication system in 2024.

[4] What do you think that you will learn
from this course?
PART I
KARN PATANUKHOM
PART II
ANYA APAVATJRUT
SCORE
MIDTERM EXAM
+BONUS
GRADE
A
B+
B
C+
C
D+
D
F
: [ 80% , 100% ]
: [ 72.5% , 80% )
: [ 65% ,72.5% )
: [ 57.5% , 65% )
: [ 50% ,57.5% )
: [ 45% , 50% )
: [ 40% , 45% )
: [ 0% , 40% )
Participation (Tik)
5~9 T = Bonus +1
10~14 T = Bonus +2
15 T = Bonus +3
BONUS
Quiz
Game
Others
Midterm Exam.
(The 2nd chance)
Task
More than 332 T
can be collected
from all students
Condition
Unlock
COMMUNICATION
COMMUNICATION SYSTEMS
MESSAGE
DATA
Data Representation

Protocol

Routing

Transmission Channel

Which route?
What is transmission medium?
How to represent the data to carry the desired information?
COMMUNICATION COMPONENTS
for Digtial Communication
SIGNAL
Signal
Sensor
(Transducer)
Signal
Processing
Signal
Analog-to-Digital
Conversion
(Analog)
Symbol
Sequence
(Digital)
Encoding
Symbol
Sequence
Modulation
Signal
(Analog)
Transmission Channel
Demodulation
Signal
(Analog)
Noise
Decoding
Signal
Processing
Symbol
Sequence
(Digital)
Signal
(Analog)
(Analog)
Symbol
Sequence
(Digital)
Output Device
Digital-to-Analog
Conversion
(Digital)
NETWORK
Network Topology


Multiplexing


Traffic Control

Which structure used for connecting the nodes together?
How to share the transmission channels?
How to optimize the overall data flow?
COMPUTER NETWORK & COMMUNICATION RELATED COURSES
CONTACTS

KARN PATANUKHOM

ROOM 508

karn.patanukhom@gmail.com
ANYA APAVATJRUT

ROOM 505

anya@eng.cmu.ac.th
Join group
today.
@CPE CMU
259109
Telecommunication in Thailand
Data & Computer Communications
261332
261335
Computer Network
261336
Computer Network Laboratory
261103
Basic Computer Engineering
261430
Wireless Network
261433
Network Programming
261434
Computer Network Design & Management
261435
Broadband Network
261447
Network & Information Security
261498
Selected Topics in Computer Network
First
Year
Major Elective
Second
Year
Third
Year
Communication Concepts
Signal, Data, Noise, Comm. Models, Comm. Components,
Protocol, Network Models, OSI Layers.
Signal Processing
Modulation
Data Compression
Transmission Channels
Multimedia Contents
Error Control
Multiplexing & Multiple Access
Security & Steganography
Analog Signal, Digital Signal, Frequency Analysis, Sampling, Quantization, PAM, PCM, PWM, Digital Line Code, Filter, Equalizer.
AM, FM, PM, ASK, FSK, PSK.
Time Division, Frequency Division, Code Division, Space Division, Circuit Switch, Packet Switch.
Wire & Cable , Wireless, Antenna, Optical Comm., Satellite, GPS, Mobile Comm.
Information Theory, Lossless Data Compression, Lossy Data Compression, Run Length Code, Huffman Code, Arithmetic Code, Golomb Code.
ARQ, FEC, Checksum, BCH Code,
Hamming Code, Convolutional Code, Interleaving.
Cryptography, Interfering, Spread Spectrum, Digital Watermarking
Audio, Image, Video Coding and Standards
PART I
PART II
Transportation
Information
Carrier
Receiver
Sender
Channel
100%
(Closed Book)
(Information Source)
Information
Source
Transmitter
Receiver
Sender
Receiver
Traffic
Security
Noise
Media
Information
(Message)
Carrier & Channel
Example
Example
Information

Knowledge
Digit / Binary
Text
Audio
Image
Video
Change in Physical Qualtity
Sound
Light
Electric
EM
Physical Quantity >> Symbols
Let's define the rules and methodology for communication!
OSI 7 LAYERS
Physical Layer
Data Link Layer
Network Layer
Session Layer
Application Layer
Presentation Layer
Transport Layer
(Open Systems Interconnection model)
ISO Standard
Physical Link, Transmission Channel, Signal, Modulation
Software Application, User Interface
eg. Web Browser
Encryption, Compression,
Machine Independent Data Conversion
7
6
5
4
3
2
1
Switching, Routing,
Logical Address (IP Address)
Reliability, Data Segmentation, Flow Control, Error Control
Session Management (btw Apps.)
Authentication
Logical Link Control, Media Access Control, Physical Address (MAC Address).
Information
Source

Sensor,ADC
Signal Processor,
Encoder
Data
Signal Processor,
Encoder
Data
Transmission Channel
Noise
Antenna
Output Device, Demodulator, Decoder, Signal Processor, DAC
Receiver
Example
Modulator, Transmitter
Sender
[Data]
Receiver
(Copy)
(Original)
Bus Topology
Ring Topology
Fully Connected
Star Topology
Internet
14 MAR 2015 12:00-15:00
FINAL EXAM
16 MAY 2015 12:00-15:00
Lv up
Conditions

The top 10 smallest scores needed to reach the next grading level

Midterm score over average

Collect 15 T
(Closed Book)
7
6
5
4
3
2
1
2
1
Sender
Router
3
2
1
7
6
5
4
3
2
1
Receiver
Router
3
Example
Senders
Media = Rose
[Sign]
Media
Sender = P' Sil
Receiver = N' Dec
Communication Failed
Example
Media = Audio + Visual
[Signal]
Sender = P' Yuth
Receiver = Viewers (550k+)
Media = Assignment File
+HOMEWORK
+Quiz
https://www.facebook.com/groups/1035074316519241/
261332@2557/2
???
You will get 1 T.
Receiver
Full transcript