ET 4630 - Electronic and Wireless Communications

2 lecture hours 2 lab hours 3 credits

Course Description
This EET technical elective course provides further background in communication systems. Presentations of the following topics will be supplemented with the presentation of contemporary topics in communication systems: analog and digital modulation methods, and signal representations in time and frequency domains (review); the effects of noise on bit-error probabilities for both baseband digital systems and systems with modulation; advanced digital modulation methods, and bandwidth/energy-efficiency comparisons with ASK, FSK, and PSK methods; multiplexing methods (TDMA, FDMA, and CDMA/spread-spectrum); overview of wireless cellular communication systems. (prereq: EE 3031 or ET 3060, ET 4620)

Course Learning Outcomes
Upon successful completion of this course, the student will be able to:

Describe the differences between ASK, FSK, and PSK digital modulation methods
Compute the bandwidth requirements for commonly used baseband signals and digitally modulated signals
Perform bandwidth/energy comparisons between ASK, FSK, PSK, and other digital modulation methods.
Compute power and energy signal-to-noise ratios for signals with random data in white noise
Design a receiver using correlation detection or matched filters, for binary or M-ary signaling
Compute power and energy signal-to-noise ratios for signals with random data in white noise
Determine bit error probabilities as a function of signal-to-noise energy ratio for digitally modulated signals
Represent digital modulation methods, using constellation diagrams

Prerequisites by Topic

Functional blocks for typical communication systems
Introduction to low-pass and band-pass signals in the frequency domain
AM signals with sinusoidal modulation-time waveforms and frequency spectra
AM modulators and envelope-detector demodulators
FM signals with sinusoidal modulation-time waveforms and frequency spectra
Digital information and typical baseband signals
Introduction to commonly used modulation methods for digital data (ASK, FSK, PSK)

Course Topics

Digital communication system model
Signal orthogonality
Baseband and bandpass signal representation (constellation, eye patterns)
Digital modulation methods, ASK, PSK, M-PSK, QAM, FSK, MSK
Signal-to-noise energy ratios
Symbol detection, correlation detection, matched filtering
Bit error rate

Laboratory Topics

Introduction, Spectrum Measurements
DSB-SC
AM
FM
Digital Modulation - ASK and FSK
Digital Modulation - BPSK and QPSK
Bit Error Rate Measurements
Channel Bandwidth for Digital Data with Various Line Codes
Direct-Sequence Spread Spectrum and CDMA

Coordinator
Edward Chandler

Announcement

The Raider Return

Milwaukee School of Engineering

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ET 4630 - Electronic and Wireless Communications