TU Delft
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2011/2012 Electrical Engineering, Mathematics and Computer Science Master Electrical Engineering
Wireless Communications
Responsible Instructor
Name E-mail
Dr.ir. G.J.M. Janssen    G.J.M.Janssen@tudelft.nl
Name E-mail
Prof.dr.ing. S.M. Heemstra de Groot    S.M.HeemstradeGroot@tudelft.nl
Prof.dr.ir. I.G.M.M. Niemegeers    I.G.M.M.Niemegeers@tudelft.nl
Dr.ir. J.H. Weber    J.H.Weber@tudelft.nl
Contact Hours / Week x/x/x/x
Education Period
Start Education
Exam Period
Course Language
Course Contents
The Wireless Communications course provides a broad overview of the essential aspects of generic wireless communications. Physical layer, Link layer (including MAC) and Network layer issues, as well as their interaction are treated. The course uses the IEEE standard 802.11 for Wireless Local Area Network (WLAN) for short-range high data-rate communications (also called WiFi) as a "red thread". The following aspects will be covered in the course (preliminary course contents):

1. Indoor radio propagation
*review of radio propagation, link-budget model
* introduction of multipath propagation
- time domain : rms-delay spread, signal dispersion, inter-symbol interference
- frequency domain: frequency selectivity, coherence bandwidth
* wall/floor/coated window attenuation
* path-loss model
* channel models
- stochastic channel models,
- model parameters for some characteristic indoor environments
- how to use a stochastic model

2. Modulation techniques applied in WLAN
* Direct Sequence Spread Spectrum (DS-SS)
* Frequency Hopping Spread Spectrum (FH-SS)
* Orthogonal Frequency Division Multiplexing (OFDM)
* Higher order modulation schemes (review) that can be applied in combination
with the schemes discussed above: BPSK, QPSK, M-QAM

3. Diversity to increase robustness against transmission anomalies
* Frequency diversity
* Space/location diversity
- Antenna diversity: selection diversity, maximal ratio combining
* Time diversity: interleaving

4. Coding
* Characterization of error types
* Basics of error control coding:
- Automatic repeat requests (ARQ)
- Forward error correction (FEC)
- Hybrid methods
* Code design: trade-off between efficiency, reliability, complexity/delay
* Block & convolutional codes
* Viterbi decoding
* Puncturing
* Interleaving

5. Medium Access Control (MAC) Layer
* 802.11 Family of Standards
* Network and Protocol Architecture

6. Mobility and Security
* 802.11f - IAPP
* 802.11 - Security Issues
* 802.11i - Security

7. WLAN Deployment
* Deployment Issues and Development
* System Considerations
* WLAN MAC and PHY Deployment
Study Goals
The student has obtained insight in the different relevant aspects of wireless mobile communications systems related to the Physical- , Link- and the Network layers (propagation, modulation, coding, diversity, MAC, security and WLAN deployment), and is able to explain the relations between the different issues and trade-offs that can be made. Basic design problems can be solved based on calculations.
Education Method
Literature and Study Materials
"Mobile Communications", 2nd edition, van Jochen H. Schiller, ISBN 0-321-12381-6, Pearson Education Limited, 2003.
Written (closed book).
Permitted Materials during Tests
During the written exam it is allowed to use a non-programmable electronic calculator.
This course belongs to the compulsory part of the MSc. Program Telecommunications.