Transcript Lecture 1
Lecture 1:
Course information
Communication Systems overview
Aliazam Abbasfar
Outline
Course Information and policies
Course Syllabus
Communication Systems
Course Information
Instructor : Aliazam Abbasfar
[email protected]
Office Hours : Sat-Mon (by appointment)
Classes: Sat-Mon 9:30/11 am
TA : M.Rezaee
Email list : join ASAP, webpage : ECE page
Grading:
HWs
Midterm
Final
Bonus
10%
30%
60%
5%
Prerequisites:
Signals and Systems
Probability
Class policies
No make-up exams (DON’T MISS EXAMS!)
Midterm: TBD
Final:
Academic honesty
HW and exams should be your own work
Turn off your cell phones during lectures
Course Syllabus
Communication systems overview
(2)
Fourier Review
Energy/Power Spectral Density
Random Processes and Signals
(1)
(2)
(3)
Transmission Media
(3)
Amplitude Modulation
Frequency Modulation
Comparison of different modulations
(6)
(4)
Analog to digital conversion
Digital Modulation
(3)
(4)
(1)
References
A.B. Carlson, P.B. Crilly and J.C. Rutlege, Communication
Systems, 4th ed.; McGraw-Hill, 2002
J.G. Proakis and M. Salehi, Communication Systems
Engineering, 2nd ed., Prentice Hall, 2002
S. Haykin, Communication systems, 3rd ed., John Wiley, 1994
L.W. Couch, II, "Digital and Analog Communication Systems," Sixth
Edition, Prentice-Hall, New York, 2001
B.P. Lathi, "Modern Digital and Analog Communications Systems,"
3rd edition, Oxford University Press, 1998
F.G. Stremler, "Introduction to Communication Systems," 3rd ed.,
Addison-Wesley Publishing Co., 1990
Simon Haykin, Michael Moher, "An Introduction to Analog and
Digital Communications," 2nd Edition
Communication Systems
Reliable (electronic) exchange of information
Voice, data, video, music, email, web pages, etc
Modern era started by telegraph (S. Morse 1837)
Binary digital communications system
Transatlantic cable (US-Europe) in 1858
Telephone was the next breakthrough (A.G. Bell
1876)
driven so many great inventions
Wireless communication (G. Marconi 1890)
Transatlantic communication
Satellite communication
Communication Networks (Bell Labs 70’s)
Communication System
Block Diagram
Source encoder converts message into message signal or bits
Transmitter converts message signal or bits into format
appropriate for channel transmission (analog/digital signal)
Channel introduces distortion, noise, and interference
Receiver decodes received signal back to message signal
Source decoder decodes message signal back into original
message
Communication medias
Wireline (wired)
Telephony (voice, fax, modem, DSL)
Ethernet/LAN
Cable TV
Backplane copper links
Wireless (Electromagnetic)
Over the air communication
Radio and TV broadcast
WLAN
Cellular
Radar
Fiber optics
High speed long haul data communication
High traffic data transfer
Communication systems today
Public Switched Telephone Network (voice, fax,
modem, DSL)
Radio and TV broadcasting
Satellite systems (TV broadcast, voice/data ,
pagers)
Computer networks (LANs, WANs, and the
Internet)
Cellular Phones
Bluetooth/wireless devices
Sensor networks
Summary
Communication systems send information
electronically over communication channels
Communication systems recreate transmitted
information at receiver with high fidelity
Many different types of systems which convey
many different types of information
Design challenges include hardware, system, and
network issues
Focus of this class is design and performance of
analog and digital communication systems
Reading
Carlson Ch. 1
Proakis Ch. 1