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Overview of Communication Systems: Course Information and Policies

This course provides a comprehensive overview of communication systems, covering topics such as Fourier analysis, spectral density, modulation techniques, and analog-to-digital conversions. Taught by instructor Aliazam Abbasfar, the syllabus includes grading policies, assignments, and prerequisites. Students will explore both analog and digital communication systems, emphasizing design challenges and performance evaluation. Key references include works by Carlson, Proakis, and Haykin. Classes are held on Saturdays and Mondays, with office hours by appointment.

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Overview of Communication Systems: Course Information and Policies

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  1. EE354 : Communications System I Lecture 1: Course information Communication Systems overview Aliazam Abbasfar

  2. Outline • Course Information and policies • Course Syllabus • Communication Systems

  3. Course Information • Instructor : Aliazam Abbasfar • abbasfar@ece.ut.ac.ir • 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 10% • Midterm 30% • Final 60% • Bonus 5% • Prerequisites: • Signals and Systems • Probability

  4. 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

  5. Course Syllabus • Communication systems overview (2) • Fourier Review (1) • Energy/Power Spectral Density (2) • Random Processes and Signals (3) • Transmission Media (3) • Amplitude Modulation (6) • Frequency Modulation (4) • Comparison of different modulations (1) • Analog to digital conversion (3) • Digital Modulation (4)

  6. 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

  7. 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)

  8. 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

  9. 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

  10. 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

  11. 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

  12. Reading • Carlson Ch. 1 • Proakis Ch. 1

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