Courses persons responsible
Mikko Valkama

Lecturers
Elena-Simona Lohan

Lecturetimes and places
Per I: Monday 12 - 15, TB219
Per I,II,III: Monday 14 - 17, TC161

Implementations

	Period 1	Period 2	Period 3	Period 4	Period 5	Summer
Lecture	3 h/week	3 h/week	1 h/week	-	-	-
Exercise	2 h/week	2 h/week	1 h/week	-	-	-
Exercise work	1 h/week	1 h/week	-	-	-	-
Assignment	6 h/week	8 h/week	5 h/week	-	-	-
Exam

(Timetable for academic year 2007-2008)

Objectives
The goal is to build basic understanding of signal level issues, signal analysis tools and signal processing techniques encountered and utilized in electrical communications systems.

Content

Content	Core content	Complementary knowledge	Specialist knowledge
1.	Signals and Communication Systems ** signal spectrum and related concepts; ability to think and understand the behaviour of signals and systems in frequency domain; Fourier transform vs. correlation analysis and spectral density ** random signals and noise; 1st and 2nd order statistics and their significance; probability densities; random signals and spectral density ** signal distortion in transmission; various distortion types and their significance ** transmission system design and the crucial resources and boundaries; bandwidth and power
2.	Bandpass Signals and Systems ** understanding and expressing bandpass signals; envelope and phase functions; I/Q representation ** real and complex signals; lowpass equivalent signals and systems; analytic signals and Hilbert transform ** use of complex signals in communications systems; analysis vs. implementation	- analytic signals and Hilbert transform and their significance and applications in communications signal processing in general - complex filters and filtering
3.	Analog Modulations ** the concept of carrier modulation; linear modulation techniques; AM, DSB, SSB; VSB; general I/Q modulation ** angle or exponential modulations; phase and frequency modulation ** modulated signals and detection; envelope detector; synchronous detector; frequency detector ** analysis of modulated signals and their performance; spectral contents; operation in noisy channels; effects of interfering signals ** various transmission environments and the selection of modulation	- detailed mathematical analysis or angle modulations - modulators and their circuit implementations - detectors and their circuit implementations - radio receivers and architectural aspects
4.	Signal Sampling ** waveforms and their disrete-time samples; mathematical models for sampling; discrete sequence of numbers vs. impulse train model; spectral contents of sampled signals ** sampling theorem; lowpass vs. bandpass sampling
5.	Introduction to Digital Transmission Techniques ** discrete information and analog channels; bits, symbols and waveforms ** baseband pulse amplitude modulation (PAM); line coding and Nyquist pulse shaping; symbol alphabets; intersymbol interference (ISI) ** carrier modulation in digital transmission; linear I/Q modulation; digital frequency modulation ** digital vs. analog transmission, pros and cons ** basics of information theory; channel capacity

Requirements for completing the course
Exam and personal project work. The course can be taken either for 5 or 7 credits. In the basic version (5 cr), the scope and level of the personal project work are more narrow than in the extended (7 cr) version. NOTICE! *** 7 cr implementation is basically needed for those targeting to study transmission techniques in more details *** The exam and the project work should be done during the same academic year.

Evaluation criteria for the course

Study material

Type	Name	Auhor	ISBN	URL	Edition, availability...	Exam material	Language
Summary of lectures	Communication Theory -lecture notes					Yes	English
Book	Communication Systems	A. B. Carlson, P. B. Crilly, J. C. Rutledge	0-07-112175-7		TUT Bookstore, Published by McGraw-Hill	Yes	English

Prerequisites

Code	Course	Credits	M/R
SGN-1200	SGN-1200 Signal Processing Methods	4	Mandatory
TLT-5100	TLT-5100 Introduction to telecommunications	5	Mandatory

Prequisite relations (Sign up to TUT Intranet required)

Remarks

There will be 1 or 2 extra lecture sessions related to the 7 credit implementation during the 3rd period. More detailed schedule will be announced during the course.

Distance learning

- In information distribution via homepage, newsgroups or mailing lists, e.g. current issues, timetables
- In compiling exercise, group or laboratory work
- In distributing and/or returning exercise work, material etc
- In the visualization of objects and phenomena, e.g. animations, demonstrations, simulations, video clips

- Contact teaching: 50 %
- Distance learning: 0 %
- Proportion of a student's independent study: 50 %

Scaling

Methods of instruction	Hours
Lectures	72
Exercises	40
Assignments	14
Laboratory assignments	14

Study materials	Hours
A. B. Carlson, "Communication Systems"	20

Other scaled	Hours
Preparation for exam	6
Exam/midterm exam	4
Total sum	170

Correspondence of content
83001 Communication Theory

Course homepage

Last modified	07.02.2007
Modified by	Markku Renfors