Electrical and Computer Engineering

471.  Telecommunications.  Modern telecommunications systems for voice, video and data utilizing wire, fiber and wireless.  Wire communications systems for voice and video - telephone systems basics.  Digital communications pulse modulation, coding techniques including digital video. Data transmission using modems - asynchronous and synchronous formats, error detection and data compressions.  Computer networks, local and wide area.  Fiber communications systems.  (Cr.3) 

Prerequisites by topic:

                                1.             Time and Frequency Domain representation of signals.

2.                    Basic Concepts of probability

3.                    Basic electronics  

Course Goals:

1.    To provide an overview of topics pertaining to analysis and implementation of Telecommunication   Networks, Cellular and mobile communications, Fiberoptic Communications, multimedia, etc

2.   Present  the evolution, trends and challenges in design of  communications   devices both domestically  and globally.

        3.  To apply knowledge of probability and signals theory  to the modeling,  analysis and design of simple communications  devices for transmission of  analog signals such as audio and video, and digital such as  digitized voice and  video, and computer  data.

        4.   Evaluate and study means for improving  the performance of telecommunications systems subjected to transmission impairments such as noise and interference

5.  Conduct research on a subject, working on a team and  using resources such as the library and the Web,  and present results using modern presentation techniques and a written report.

        6.  To instill time management skills  

Course Objectives: 

1.  To provide a  review of  the basic signal analysis concepts including time domain vs. frequency domain representations, as well as modulation, filters and noise.

2.  To understand the fundamentals of  Amplitude and angle modulation techniques for both  analog ( AM, FM,..) and digital (FSK, PSK, QPSK, ...) information signals.

3. To be able to design and  implement components of transmitters and receivers.

4. Given parameters to be able to express modulated carriers in the time domain and find their spectra.

5.  Study techniques for Conversion of Analog signals to Digital: PAM, PCM, etc

6. Understand the limitations and  impairments of transmission media such as atmosphere, copper, optical fibers, and be able to evaluate the performance of systems using measures such as Power efficiency, Signal to noise ratio, Bandwidth efficiency, Data rate, etc.                

7.  Study means for improving the performance of systems, such as limiters and preemphasis-deemphasis for FM for reduction of noise, Phased Locked Loops for synchronization, Compaders-expanders for PCM, threshold detectors for digital data, Equalizers for Intersymbol Interference reduction.

8. Study Coding and Decoding  techniques for  reduction of  errors and/or efficient use of bandwidth

9.  Study  techniques for sharing  transmission media  such as Multiplexing (TDM and T-carriers, CDMA,  FDM, WDM)

10. Conduct research using resources such as the library and the Web, work on a team write a report and present  an overview. 

Selected topics include: The telephone network, standards like DS, SONET,  modems like the V.90, V.92, Wide area Networks ,   Internet Providers  and techniques like ISDN, and DSL , Wired and wireless LAN’s, and standards like 802.11, FDDI,  cellular telephony,  mobile communications, and the GPS.   

Course Syllabus:

Text: Electronic Communications Systems   by Wayne Tomasi, 4^th ed. Prentice-Hall 2000  

Course Outline and Schedule:  

TOPIC                                                                                                    READING/# LECTURES

PART 1. Introduction                                                                                   8   lectures  Chap                

Communications systems, Frequencies, Modulation ,

Spectrum, Time and  Frequency Domain, Filters, Noise.  

End of week 3: A list of Project topics will be distributed  

PART 2.  Analog Communications Systems                                                

Amplitude Modulation                                                                           5   lectures Chap 3-5                                                                                                              

Frequency Modulation                                                                           8   lectures Chap 6, 7

End of week 6: Project choices and groups will be finalized   

PART 3.  Data and Telephone Communications                                 10  lectures Chap.12

Digital Communications:

data rates, FSK, PSK, QPSK, QAM     

Error detection, Serial/Parallel transmission

PAM, PCM, Delta Modulation, Intersymbol Interferenc            6    lectures Chap 15, 16           

Signaling Techniques, Polar and  Bipolar Pulses

Multiplexing: TDM and T-carriers, FDM, WDM.   

PART 4 .  Modern Transmission Systems :                                                          5 lectures

Projects and Student Presentations                                                                      

Telephone systems, Modems                                                                                   Chap.13

LANS, Topologies  Protocols, Internet                                                                   Chap.14

Personal and Cellular systems                                                                                   Chap.19  

ABET category as estimated by faculty member who prepared this course description  

                                Engineering Science  1 credit or 33%

                                Engineering design 1 credits   or 66%

Prepared by : Dr Evriclea Voudouri                                                 Date December 21, 2001