# Digital Communications 2

##### Digital Communications 2

Course No. 389.164
2021W, VU, 3.0h, 4.5EC

###### General Information

Where and when:

Monday 10:45−12:00, online stream – Zoom
Wednesday 10:00−11:15, online stream – Zoom

Exercise part:

There will be 6-8 exercise units per semester taking place at the lecture’s scheduled time and place. The dates of the exercise units will be announced on this website and in TISS at least one week in advance. Attendance of the exercise units is mandatory (one no-show allowed).

At the beginning of each exercise unit, the solutions for two mandatory problems have to be handed in. By presenting solutions on the blackboard, students can earn up to 20 credits during the entire semester. The number of credits earned for a presentation depends on the difficulty of the problem and the quality of the presentation and solution. A collection of possible exercise problems can be found in the lecture notes. The specific problems (including the mandatory problems) for each exercise unit will be announced on this website and in TISS at least one week in advance.

In order to be admitted to the written exam, the following conditions must be fulfilled:
• At least 10 credits have been earned in the exercise units.
• All mandatory problems have been handed in (2 incomplete mandatory problems and 1 “no-show” are permitted).

Written exam:

The written exam consists of four problems, and a maximum of 80 credits can be earned. Clean lecture notes and a collection of mathematical formulas are allowed at the exam. To check for dates and register for an exam use TISS.

To be allowed to the oral exam, at least 40 written exam credits and at least preliminary grade G4 are required. The preliminary grade is derived from

total credits = written exam credits + exercise credits

according to the following table:

 total credits 50−62 63−75 76−88 89−100 preliminary grade G4 B3 U2 S1

###### Exercise Problems

The problem numbers correspond to the problems in the lecture notes. Credits that can be earned by presenting the problem are indicated by (x). Mandatory problems that have to be handed in are marked by *.

1st exercise unit: 13.10.2021.
Problems: 9.2.1(5), 9.2.3* (6), 9.3.1 (4), 9.3.12 (4), 9.4.4* (5), 9.4.5 (6), 9.5.3 (5)

2nd exercise unit: 27.10.2021
Problems: 1.2.1* (4), 1.2.2 (4), 1.2.6 (4), 1.3.1 (6) – do not list hamming spheres in part c.), 1.3.2 (4), 1.3.3* (6), 1.3.12 (4)

3rd exercise unit: 10.11.2021
Problems: 2.2.2 (1), 2.2.4 (2), 2.2.9 (1), 2.3.10* (3), 2.3.12 (2), 2.4.1 (2), 2.4.7* (4)

4th exercise unit: 24.11.2021
Problems: 2.5.2 (3), 2.5.3 (3), 2.5.6* (3), 2.5.15 (3), 3.2.2* (4), 3.2.8 (3)

5th exercise unit: 06.12.2021
Problems: 3.3.5 (2), 3.3.8* (4), 3.4.2 (3), 3.5.4 (3), 3.5.7* (4), 3.5.10 (4)

6th exercise unit: 15.12.2021
Problems: 3.6.3 (3), 3.6.4* (3), 3.6.5 (3), 3.6.10* (5), 3.6.12 (4)

7th exercise unit: 19.01.2022
Problems: 4.2.1* (5), 4.3.8 (5), 4.4.1 (4), 4.5.1 (6), 4.5.2* (6)

Previous exams: DC2Exams.zip

Chapter 9 of the DC1 lecture notes: DC1_20_ch9

Chapter 1 of the DC2 lecture notes: DC2_21_Ch1

###### Contact

Lecturer: Franz Hlawatsch
E-Mail: franz.hlawatsch@tuwien.ac.at
Office: CG0110
Phone: +43 (1) 58801-38963

Exercise Supervisor: TJ Bucco
E-Mail: thomas.bucco@tuwien.ac.at
Office: CG0108