Digital Communication, 6 credits
Digital kommunikation, 6 hp
TSKS01
Main field of study
Electrical EngineeringCourse level
Second cycleCourse type
Programme courseExaminer
Emil BjörnsonDirector of studies or equivalent
Lasse AlfredssonEducation components
Preliminary scheduled hours: 62 hRecommended self-study hours: 98 h
Available for exchange students
YesMain field of study
Electrical EngineeringCourse level
Second cycleAdvancement level
A1XCourse offered for
- Master's Programme in Communication Systems
- Master's Programme in Electronics Engineering
- Bachelor of Science in Engineering Electronics
- Computer Science and Engineering, M Sc in Engineering
- Industrial Engineering and Management - International, M Sc in Engineering
- Industrial Engineering and Management, M Sc in Engineering
- Information Technology, M Sc in Engineering
- Applied Physics and Electrical Engineering - International, M Sc in Engineering
- Applied Physics and Electrical Engineering, M Sc in Engineering
Entry requirements
Note: Admission requirements for non-programme students usually also include admission requirements for the programme and threshold requirements for progression within the programme, or corresponding.
Prerequisites
From Calculus: Foremost integrals.
From Linear Algebra: Everything related to linear spaces.
From Probability Theory: Computations with stochastic variables.
From Signals and Systems / Linear Systems: Fourier transforms, convolution, LTI systems.
From either “Signals, Information and Communication” or “Signals, information and images”: pulse-amplitude modulation, white noise, baseband representation of narrowband signals, channel capacity.
Intended learning outcomes
After passing the course, the student should
- be able to reliably perform standard calculations regarding digital modulation and binary codes for error control coding
- be able to, with some precision, analyze and compare various choices of digital modulation methods and coding methods in terms of error probabilities, minimum distances, throughput, and related concepts
- be able, to some extent, to perform calculations for solutions to practical engineering problems that arise in communication
- be able, to some extent, with experimental purpose design and evaluate communication systems of the kinds treated in the course
Course content
- Baseband and passband communication: Pulse functions that satisfy the Nyquist criterion, typical orthogonal basis functions, single-carrier and multi-carrier signals (e.g., OFDM), relationship between bandwidth and symbol time.
- Channels: Delay spread, dispersive and non-dispersive channels, and their relation to inter-symbol interference.
- Digital modulation in AWGN channels: ML detection of symbols, coherent and non-coherent detection. Exact error probabilities and common bounds, soft decisions. Common signal constellations (e.g., FSK, PSK, ASK, QAM).
- Digital modulation in dispersive channels: ML detection of symbol sequences, complexity considerations, Viterbi algorithm.
- Codes for error control: Binary linear codes, binary field, generator and parity check matrices, weights and distances. Error detection and error correction capabilities. Example of binary codes (e.g., repetition codes, parity check codes, Hamming codes, product codes). Bounds and asymptotic behaviors. Encoding and decoding of convolutional and CRC codes.
- Implementation aspects: Synchronization, link adaptation in packet transmission.
Teaching and working methods
Teaching is given as lectures, tutorials and laboratory exercises.
The course runs over the entire autumn semester.
Examination
LAB1 | Laboratory work | 1 credits | U, G |
TEN1 | Written examination | 5 credits | U, 3, 4, 5 |
The exam (TEN1) consists of three parts:
- One introductory task that examines the course aims "be able to reliably perform standard calculations...". At least 1/2 of this task has to be solved correctly in order to pass the exam.
- A question part, examining the learning outcome "be able to account for..."
- A problem part, examining the learning outcomes "be able to, with some precision,..." and "to some extent...".
The grade on the exam is based on the number of points obtained from the second and third part, provided that the first part is OK.
The laboratory exercises (LAB1) examines the course aim
- with experimental purpose...
Grades
Four-grade scale, LiU, U, 3, 4, 5Course literature
Mikael Olofsson, Emil Björnson, "Introduction to Digital Communication" Institutionen för Systemteknik (ISY), Linköpings universitet, (with accompanying problem material).
Other information
Supplementary courses: TSKS13 Wireless communications, TSKS14 Multiple antenna communications, TSKS15 Detection and estimation of signals, TSKS12 Modern channel coding, inference and learning.
About teaching and examination language
The teaching language is presented in the Overview tab for each course. The examination language relates to the teaching language as follows:
- If teaching language is Swedish, the course as a whole or in large parts, is taught in Swedish. Please note that although teaching language is Swedish, parts of the course could be given in English. Examination language is Swedish.
- If teaching language is Swedish/English, the course as a whole will be taught in English if students without prior knowledge of the Swedish language participate. Examination language is Swedish or English (depending on teaching language).
- If teaching language is English, the course as a whole is taught in English. Examination language is English.
Other
The course is conducted in a manner where both men's and women's experience and knowledge are made visible and developed.
The planning and implementation of a course should correspond to the course syllabus. The course evaluation should therefore be conducted with the course syllabus as a starting point.
Department
Institutionen för systemteknikDirector of Studies or equivalent
Lasse AlfredssonExaminer
Emil BjörnsonCourse website and other links
http://www.commsys.isy.liu.se/en/student/kurser/TSKS01Education components
Preliminary scheduled hours: 62 hRecommended self-study hours: 98 h
Course literature
Books
- Mikael Olofsson, Emil Björnson, Introduction to Digital Communication Latest edition
Institutionen för Systemteknik (ISY), Linköpings universitet, (with accompanying problem material)
Compendia
some extra material that will be handed out during the course.
Code | Name | Scope | Grading scale |
---|---|---|---|
LAB1 | Laboratory work | 1 credits | U, G |
TEN1 | Written examination | 5 credits | U, 3, 4, 5 |
The exam (TEN1) consists of three parts:
- One introductory task that examines the course aims "be able to reliably perform standard calculations...". At least 1/2 of this task has to be solved correctly in order to pass the exam.
- A question part, examining the learning outcome "be able to account for..."
- A problem part, examining the learning outcomes "be able to, with some precision,..." and "to some extent...".
The grade on the exam is based on the number of points obtained from the second and third part, provided that the first part is OK.
The laboratory exercises (LAB1) examines the course aim
- with experimental purpose...
Course syllabus
A syllabus must be established for each course. The syllabus specifies the aim and contents of the course, and the prior knowledge that a student must have in order to be able to benefit from the course.
Timetabling
Courses are timetabled after a decision has been made for this course concerning its assignment to a timetable module.
Interrupting a course
The vice-chancellor’s decision concerning regulations for registration, deregistration and reporting results (Dnr LiU-2015-01241) states that interruptions in study are to be recorded in Ladok. Thus, all students who do not participate in a course for which they have registered must record the interruption, such that the registration on the course can be removed. Deregistration from a course is carried out using a web-based form: https://www.lith.liu.se/for-studenter/kurskomplettering?l=en.
Cancelled courses
Courses with few participants (fewer than 10) may be cancelled or organised in a manner that differs from that stated in the course syllabus. The Dean is to deliberate and decide whether a course is to be cancelled or changed from the course syllabus.
Guidelines relating to examinations and examiners
For details, see Guidelines for education and examination for first-cycle and second-cycle education at Linköping University, http://styrdokument.liu.se/Regelsamling/VisaBeslut/917592.
An examiner must be employed as a teacher at LiU according to the LiU Regulations for Appointments (https://styrdokument.liu.se/Regelsamling/VisaBeslut/622784). For courses in second-cycle, the following teachers can be appointed as examiner: Professor (including Adjunct and Visiting Professor), Associate Professor (including Adjunct), Senior Lecturer (including Adjunct and Visiting Senior Lecturer), Research Fellow, or Postdoc. For courses in first-cycle, Assistant Lecturer (including Adjunct and Visiting Assistant Lecturer) can also be appointed as examiner in addition to those listed for second-cycle courses. In exceptional cases, a Part-time Lecturer can also be appointed as an examiner at both first- and second cycle, see Delegation of authority for the Board of Faculty of Science and Engineering.
Forms of examination
Examination
Written and oral examinations are held at least three times a year: once immediately after the end of the course, once in August, and once (usually) in one of the re-examination periods. Examinations held at other times are to follow a decision of the board of studies.
Principles for examination scheduling for courses that follow the study periods:
- courses given in VT1 are examined for the first time in March, with re-examination in June and August
- courses given in VT2 are examined for the first time in May, with re-examination in August and October
- courses given in HT1 are examined for the first time in October, with re-examination in January and August
- courses given in HT2 are examined for the first time in January, with re-examination in March and in August.
The examination schedule is based on the structure of timetable modules, but there may be deviations from this, mainly in the case of courses that are studied and examined for several programmes and in lower grades (i.e. 1 and 2).
Examinations for courses that the board of studies has decided are to be held in alternate years are held three times during the school year in which the course is given according to the principles stated above.
Examinations for courses that are cancelled or rescheduled such that they are not given in one or several years are held three times during the year that immediately follows the course, with examination scheduling that corresponds to the scheduling that was in force before the course was cancelled or rescheduled.
When a course is given for the last time, the regular examination and two re-examinations will be offered. Thereafter, examinations are phased out by offering three examinations during the following academic year at the same times as the examinations in any substitute course. If there is no substitute course, three examinations will be offered during re-examination periods during the following academic year. Other examination times are decided by the board of studies. In all cases above, the examination is also offered one more time during the academic year after the following, unless the board of studies decides otherwise.
If a course is given during several periods of the year (for programmes, or on different occasions for different programmes) the board or boards of studies determine together the scheduling and frequency of re-examination occasions.
Registration for examination
In order to take an examination, a student must register in advance at the Student Portal during the registration period, which opens 30 days before the date of the examination and closes 10 days before it. Candidates are informed of the location of the examination by email, four days in advance. Students who have not registered for an examination run the risk of being refused admittance to the examination, if space is not available.
Symbols used in the examination registration system:
** denotes that the examination is being given for the penultimate time.
* denotes that the examination is being given for the last time.
Code of conduct for students during examinations
Details are given in a decision in the university’s rule book: http://styrdokument.liu.se/Regelsamling/VisaBeslut/622682.
Retakes for higher grade
Students at the Institute of Technology at LiU have the right to retake written examinations and computer-based examinations in an attempt to achieve a higher grade. This is valid for all examination components with code “TEN” and "DAT". The same right may not be exercised for other examination components, unless otherwise specified in the course syllabus.
A retake is not possible on courses that are included in an issued degree diploma.
Retakes of other forms of examination
Regulations concerning retakes of other forms of examination than written examinations and computer-based examinations are given in the LiU guidelines for examinations and examiners, http://styrdokument.liu.se/Regelsamling/VisaBeslut/917592.
Plagiarism
For examinations that involve the writing of reports, in cases in which it can be assumed that the student has had access to other sources (such as during project work, writing essays, etc.), the material submitted must be prepared in accordance with principles for acceptable practice when referring to sources (references or quotations for which the source is specified) when the text, images, ideas, data, etc. of other people are used. It is also to be made clear whether the author has reused his or her own text, images, ideas, data, etc. from previous examinations, such as degree projects, project reports, etc. (this is sometimes known as “self-plagiarism”).
A failure to specify such sources may be regarded as attempted deception during examination.
Attempts to cheat
In the event of a suspected attempt by a student to cheat during an examination, or when study performance is to be assessed as specified in Chapter 10 of the Higher Education Ordinance, the examiner is to report this to the disciplinary board of the university. Possible consequences for the student are suspension from study and a formal warning. More information is available at https://www.student.liu.se/studenttjanster/lagar-regler-rattigheter?l=en.
Grades
The grades that are preferably to be used are Fail (U), Pass (3), Pass not without distinction (4) and Pass with distinction (5).
- Grades U, 3, 4, 5 are to be awarded for courses that have written examinations.
- Grades Fail (U) and Pass (G) may be awarded for courses with a large degree of practical components such as laboratory work, project work and group work.
- Grades Fail (U) and Pass (G) are to be used for degree projects and other independent work.
Examination components
- Grades U, 3, 4, 5 are to be awarded for written examinations (TEN).
- Examination components for which the grades Fail (U) and Pass (G) may be awarded are laboratory work (LAB), project work (PRA), preparatory written examination (KTR), oral examination (MUN), computer-based examination (DAT), home assignment (HEM), and assignment (UPG).
- Students receive grades either Fail (U) or Pass (G) for other examination components in which the examination criteria are satisfied principally through active attendance such as other examination (ANN), tutorial group (BAS) or examination item (MOM).
- Grades Fail (U) and Pass (G) are to be used for the examination components Opposition (OPPO) and Attendance at thesis presentation (AUSK) (i.e. part of the degree project).
For mandatory components, the following applies: If special circumstances prevail, and if it is possible with consideration of the nature of the compulsory component, the examiner may decide to replace the compulsory component with another equivalent component. (In accordance with the LiU Guidelines for education and examination for first-cycle and second-cycle education at Linköping University, http://styrdokument.liu.se/Regelsamling/VisaBeslut/917592).
For written examinations, the following applies: If the LiU coordinator for students with disabilities has granted a student the right to an adapted examination for a written examination in an examination hall, the student has the right to it. If the coordinator has instead recommended for the student an adapted examination or alternative form of examination, the examiner may grant this if the examiner assesses that it is possible, based on consideration of the course objectives. (In accordance with the LiU Guidelines for education and examination for first-cycle and second-cycle education at Linköping University, http://styrdokument.liu.se/Regelsamling/VisaBeslut/917592).
The examination results for a student are reported at the relevant department.
Regulations (apply to LiU in its entirety)
The university is a government agency whose operations are regulated by legislation and ordinances, which include the Higher Education Act and the Higher Education Ordinance. In addition to legislation and ordinances, operations are subject to several policy documents. The Linköping University rule book collects currently valid decisions of a regulatory nature taken by the university board, the vice-chancellor and faculty/department boards.
LiU’s rule book for education at first-cycle and second-cycle levels is available at http://styrdokument.liu.se/Regelsamling/Innehall/Utbildning_pa_grund-_och_avancerad_niva.
Books
Institutionen för Systemteknik (ISY), Linköpings universitet, (with accompanying problem material)
Compendia
some extra material that will be handed out during the course.
Note: The course matrix might contain more information in Swedish.
I | U | A | Modules | Comment | ||
---|---|---|---|---|---|---|
1. DISCIPLINARY KNOWLEDGE AND REASONING | ||||||
1.1 Knowledge of underlying mathematics and science (G1X level) |
|
|
X
|
TEN1
|
Use mathematics as a tool: Integrals, linear algebra, probability theory. |
|
1.2 Fundamental engineering knowledge (G1X level) |
|
|
X
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LAB1
TEN1
|
TEN1: LTI systems, convolution, Fourier transform. LAB1: Programming skills. |
|
1.3 Further knowledge, methods, and tools in one or several subjects in engineering or natural science (G2X level) |
X
|
X
|
X
|
LAB1
TEN1
|
TEN1: Digital modulation, dispersive channels, signals as vectors, error probability, linear binary error control codes, convolutional codes, CRC codes, link adaptation, practical aspects. LAB1: Digital modulation, linear binary error control codes. |
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1.4 Advanced knowledge, methods, and tools in one or several subjects in engineering or natural sciences (A1X level) |
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1.5 Insight into current research and development work |
|
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2. PERSONAL AND PROFESSIONAL SKILLS AND ATTRIBUTES | ||||||
2.1 Analytical reasoning and problem solving |
|
X
|
X
|
LAB1
TEN1
|
TEN1: Problem solving around 1.3. With support of tools and methods from particularly mathematics, identify and model digital communications. LAB1: Combine theoretical concepts, implement different algorithms, and evaluate the results. |
|
2.2 Experimentation, investigation, and knowledge discovery |
|
|
X
|
LAB1
|
Develop programming tools to communicate digital data over a channel with additive noise, with and without error-control coding. |
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2.3 System thinking |
|
X
|
|
LAB1
|
System-thinking for communication systems. |
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2.4 Attitudes, thought, and learning |
|
X
|
X
|
TEN1
|
Individual problem-solving. |
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2.5 Ethics, equity, and other responsibilities |
|
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3. INTERPERSONAL SKILLS: TEAMWORK AND COMMUNICATION | ||||||
3.1 Teamwork |
|
|
X
|
Lab exercises are carried out in small groups. |
||
3.2 Communications |
|
|
X
|
LAB1
|
Oral and written presentation of results from lab exercises. |
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3.3 Communication in foreign languages |
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X
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The course literature, teaching, and examination is in English. |
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4. CONCEIVING, DESIGNING, IMPLEMENTING AND OPERATING SYSTEMS IN THE ENTERPRISE, SOCIETAL AND ENVIRONMENTAL CONTEXT | ||||||
4.1 External, societal, and environmental context |
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4.2 Enterprise and business context |
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4.3 Conceiving, system engineering and management |
|
X
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LAB1
TEN1
|
Evaluate system solutions against constraints. Consider choice of modulation and coding methods to achieve desired performance in a communication system. |
|
4.4 Designing |
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|
X
|
LAB1
|
Construct a system simulator to evaluate the error probabilities of different transmission methods. |
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4.5 Implementing |
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4.6 Operating |
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5. PLANNING, EXECUTION AND PRESENTATION OF RESEARCH DEVELOPMENT PROJECTS WITH RESPECT TO SCIENTIFIC AND SOCIETAL NEEDS AND REQUIREMENTS | ||||||
5.1 Societal conditions, including economic, social, and ecological aspects of sustainable development for knowledge development |
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5.2 Economic conditions for knowledge development |
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5.3 Identification of needs, structuring and planning of research or development projects |
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5.4 Execution of research or development projects |
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5.5 Presentation and evaluation of research or development projects |
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