Communication Technology (KMT)
Only in Wintersemester
Learning outcomes / competencies:
Students know the basics of communication technology, including in particular knowledge of message transmission via different channels and networks. Students will be familiar with the basics of source, channel and line coding and know what influence channel characteristics and channel interference can have on transmission. In particular, they are familiar with procedures to minimize these influences if necessary. Students will be familiar with multiplex techniques as well as analog and digital modulation methods. Students are familiar with network structures, switching principles and the basics of protocol architectures. The basic knowledge gained can be transferred to existing systems and networks by way of example.
Contents:
Introduction:
- Elements of an electrical communication system
- Communication channels and their properties
- Signal transmission
- Modelling of communication channels
- Structure of digital networks
Source coding:
- Digital processing of physical signals
- Quantization
- Basic concepts of information theory
- Entropy
- Redundancy and irrelevance reduction
- Data reduction methods
Channel coding:
- Block codes
- Cyclic codes
- Convolutional codes
- CRC codes
- Code space
- Arithmetic with residual classes
- Residual error probability
Digital message transmission in the baseband:
- Line coding
- Data transmission via a disturbed and band-limited channel
- Intersymbol interference and Nyquist pulse shaping
- Signal-matched filtering
- Channel capacity
Modulation methods and multiplexing techniques:
- Bandpass signals
- Analog modulation techniques (AM, FM, PM)
- Digital modulation techniques (ASK, FSK, PSK, multistage techniques, OFDM)
- Multiplexing techniques (FDMA, TDMA, CDMA, SDMA, MIMO).
Communication networks:
- Network structures
- Basic protocols
- PDH and SDH
- OSI layer model
- Internet Protocol
Mobile radio systems:
- Basics
- GSM
- UMTS/HSPA
- LTE
- Wireless technologies
- WLAN
