Communication Theory

Study plan

- Making cheat sheet D-1, D-0, 15H

Professor

Chan-Byoung Chae

Good

Last edited time

Dec 14, 2025 03:17 AM

Cheat sheet

Bad

- TA’s session was actually very important. - I should have known anything I don’t know even professor didn’t explained in detail.

Tendency

# Review There were total 20 sub questions. Professor didn’t include problems he said they would; instead, he included many questions he hadn’t explained in detail. TA’s session contents were important. # Problems 1.(a). What is the actual reason of ISI? 1.(b) How can you resolve ISI problem with SVD? Draw its block diagram. 1.(c) How can you resolve ISI problem with OFDM? Draw its block diagram. 2.(a). What is the entropy of Gaussian distripution? 2.(b). What is the entropy of uniform distribution? 2.(c). Prove capacity equation using mutual information 3.(a)~(c) What is the array gain, diversity gain, alamouti, MRC 4.~5. What is MLD, Zero forcing, MMSE method and how can you implement it? 6.(a). [Non sense] 아빠 방이 너무 추워요. / 모서리에 가 있으렴. / 왜요? / (blank) ⇒ 모서리는 90도 니까. 6.(b). How did you implement CP-OFDM in your homework? 6.(c). What is difference between ZF and MLD? 6.(d). original = 10dbi. If the power is increased by 100 times, what is the power? ⇒ 40dbi

Term

2-1-Final

Exam note

- Crib sheet only one side - Entire scope - Pizza!! Me: 107 Avg: 90.7(150) Max: 137 Min: 23 Std: 34.4

Exam date

Dec 18, 2025 20:30