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Virginia Tech

ECE-4634: Digital Communications

Description: System and signal level analysis and design for digital communications systems. Review of analog-to-digital conversion and digital baseband communications. Detailed analysis of digital carrier modulation formats including assessment of signal-to-noise ratio, bit error rate, and power and bandwidth efficiency for amplitude-shift keying (ASK), phase-shift keying (PSK), frequency-shift keying (FSK), and Quadrature-Amplitude Modulation (QAM). Matched filter receivers and receiver design, link budgets, and multiple access. Additive-white-noise Gaussian channels. A detailed discussion of random variables will be included to supplement prerequisite material. A C- or better is required in prerequisites.

Pathways: N/A

Course Hours: 3 credits

Corequisites: N/A

Crosslist: N/A

Repeatability: N/A

Sections Taught: 6

Average GPA: 3.25 (rounds to B+)

Strict A Rate (No A-) : 34.85%

Average Withdrawal Rate: 0.00%

Lingjia Liu202237.4%45.1%15.7%1.9%0.0%0.0%3.233
Timothy J Talty202468.8%25.1%0.0%0.0%6.3%0.0%3.541
Richard M Buehrer202331.6%61.9%3.1%0.0%3.4%0.0%3.142

Grade Distribution Over Time

1234GPA
Fall 2019Fall 2020Fall 2021Fall 2022Fall 2023Fall 2024Term050% W