ECE 151Communications Systems
An introduction to communication systems. Analysis and design of communication systems based on radio, transmission lines, and fiber optics. Topics include fundamentals of analog and digital signal transmission in the context of baseband communications, including concepts such as modulation and demodulation techniques, multiplexing and multiple access, channel loss, distortion, bandwidth, signal-to-noise ratios and error control. Digital communication concepts include an introduction to sampling and quantization, transmission coding and error control. (Formerly EE 151.)
Prerequisite(s): ECE 103, ECE 101, and ECE 101L; and CSE 107 or STAT 131 or probability theory and random variables background. Enrollment is restricted to School of Engineering and Physical and Biological Sciences majors.
- If you completed the prerequisites but get an error message: UCSC Students - email your proof of prerequisite material to the department at bsoeadv@ucsc.edu for approval.
- Visiting Students - email your proof of prerequisite material to the instructor for approval to enroll until the add deadline - Hamid Sadjadpour, hamid@ucsc.edu.
- If you are enrolled in the prerequisite in Session 1, email summer@ucsc.edu for a permission number to enroll.
- Enrollment in the associated discussion is mandatory.
Find a section and add it to your scheduleLive seat counts, time-conflict checks and the walk from your previous class.
When it runs
Winter 2027Open Winter 2027
| Section | Type | When | Where | Instructor | Seats |
|---|---|---|---|---|---|
| 01 | Lecture | Tue Thu 9:50am–11:25am | Soc Sci 1 110 | H. R. Sadjadpour | Open 0/70 |
Summer 2026Open Summer 2026
| Section | Type | When | Where | Instructor | Seats |
|---|---|---|---|---|---|
| 01 | Lecture | Mon Wed 9:00am–12:30pm | Engineer 2 194 | H. R. Sadjadpour | Open 21/40 |
Winter 2026Open Winter 2026
| Section | Type | When | Where | Instructor | Seats |
|---|---|---|---|---|---|
| 01 | Lecture | Tue Thu 5:20pm–6:55pm | N. Sci Annex 101 | A. Chen | Closed 47/0 |
Who teaches it
| Instructor | Rating | Difficulty | Would take again | Reviews |
|---|---|---|---|---|
| Hamid Sadjadpour | 2.7 / 5 | 3.8 / 5 | 13% | 21 |
| Austin Chen | 3.3 / 5 | 3.8 / 5 | 63% | 16 |
From RateMyProfessors, which is student-submitted and not a survey. Small review counts move a long way on one bad quarter.
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