EQ2410 Advanced Digital Communications 6.0 credits

Avancerad digital kommunikation

This course aims at introducing advanced topics in digital communications and providing students with up-to-date knowledge of the techniques used in modern communication systems and the principles underlying their design.

Topics include bandlimited channels, intersymbol interference and equalization, fading channel characteristics and models, the effect of fading on digital communication system, and the ways of mitigating this effect. The course will also discuss multicarrier communications, spread spectrum techniques and multiple access, with special emphasis on CDMA schemes and multiuser detection. These techniques are widely applied in modern communication systems, e.g. in UMTS/IMT-2000.

Offering and execution

Course offering missing for current semester as well as for previous and coming semesters

Course information

Content and learning outcomes

Course contents *

The course is a second course to EQ2310 Digital Communications and focuses on advanced wireless transmission.

Bandlimited Channels: Intersymbol interference, equalization, receiver algorithms.

Fading Radio Channels: Multipath propagation. Flat and frequency-selective fading. Fast and slow fading. Random channel models. Signal design for radio channels. Diversity. Modulation. Coding.

Spread Spectrum Techniques: Introduction to spread spectrum. Direct sequence and frequency hopping. Spreading sequences, receivers. Robustness toward jamming. RAKE-receivers.

OFDM: Introduction to OFDM. Frequency-domain equalization. High bit-rate transmission. Implementation aspects.

Multiuser Communications: Multiuser systems with focus on CDMA. The near-far problem. Power control, multiuser detection, comparison between FDMA, TDMA and CDMA.

Intended learning outcomes *

The student is required to show the following skills to pass the course:

  • Identify and describe different techniques in modern digital communications with applications to wireless transmission, in particular in receivers and equalization, diversity, spread spectrum techniques, OFDM, coding for wireless communications, and CDMA and multiuser systems.
  • Identify and describe different standardized technologies in the filed, in particular GSM, UMTS/WCDMA and different WLAN standards.
  • Describe and motivate the fact that the implementation and development of modern communication technology, in particular in wireless communications, requires mathematical modeling and problem solving.
  • Apply mathematical modeling to problems in wireless digital communications, and explain how this is used to analyze and synthesize methods and algorithms within the field.
  • Formulate a mathematical model which is applicable and relevant in the case of a given problem.
  • Use a mathematical model to solve a given engineering problem in the field, and analyze the result and its validity.

To acquire a higher grade, the student is in addition required to show the following skills:

  • Identify and describe different techniques in modern wireless communications, compare different techniques and judge the applicability of different techniques in different situations.
  • Formulate advanced mathematical models which are applicable and relevant in the case of a given problem. When explicit assumptions are missing, the student should be able to judge and compare different possibilities and make own relevant assumptions.
  • Use a mathematical model to solve a given demanding engineering problem in the field, and analyze the result and its validity.

Course Disposition

No information inserted

Literature and preparations

Specific prerequisites *

For single course students: 180 credits and documented proficiency in English B or equivalent

Recommended prerequisites

EQ2310 Digital communications

Equipment

No information inserted

Literature

John G. Proakis, ”Digital Communications”

Examination and completion

If the course is discontinued, students may request to be examined during the following two academic years.

Grading scale *

A, B, C, D, E, FX, F

Examination *

  • TEN1 - Examination, 6.0 credits, Grading scale: A, B, C, D, E, FX, F

Based on recommendation from KTH’s coordinator for disabilities, the examiner will decide how to adapt an examination for students with documented disability.

The examiner may apply another examination format when re-examining individual students.

Other requirements for final grade *

Written examination. 6 cr

Opportunity to complete the requirements via supplementary examination

No information inserted

Opportunity to raise an approved grade via renewed examination

No information inserted

Examiner

Ming Xiao

Ethical approach *

  • All members of a group are responsible for the group's work.
  • In any assessment, every student shall honestly disclose any help received and sources used.
  • In an oral assessment, every student shall be able to present and answer questions about the entire assignment and solution.

Further information

Course web

Further information about the course can be found on the Course web at the link below. Information on the Course web will later be moved to this site.

Course web EQ2410

Offered by

EES/Information Science and Engineering

Main field of study *

Electrical Engineering

Education cycle *

Second cycle

Add-on studies

 EQ2430/EQ2440 Project course in signal processing and digital communications

Contact

Ming Xiao (mingx@kth.se)

Supplementary information

Replaces 2E1436