Overview
of spread spectrum based transmission (direct sequence, frequency hopping), PN
sequences, transmission over fading multipath channels, channel coding for
multipath channels, multiple-input multiple-output (MIMO) transmission, multiuser
detection, code-division multiple access (CDMA), random access, non-orthogonal
multiple access (NOMA), channel estimation for NOMA and signal processing in
5G.
Introduction to Digital Communications (Lab), Introduction to Information Theory and Coding (Lab), Digital Communication Over Fading Channels (Lab)
Fundamentals in probability Theory, Fourier transform, stochastic processes, sampling theorem (sampling and reconstruction), digital modulation techniques, communication signals and systems, characterization of thermal noise, signal space, signal detection and optimum receivers for the AWGN channel.
Deterministic
and stochastic representation of mobile radio channels; Time-variant linear
systems; Probability density functions of fading channels; Noise and
interference; Diversity; Multichannel transmission and linear combining
techniques; UMTS and HSDPA; LTE systems; Device-2-Device (D2D)
communication using LTE; Cellular internet of things (IoT); LTE in V2X
communication; 5G; An introduction to modulations and waveforms for 5G networks; Massive-MIMO and basic channel measurement techniques;
Non orthogonal multiple access (NOMA); Cognitive radio for 5G networks; 6G
communication systems.
Vorbereitende Übung auf die Wiederholungsprüfung im Modul "Signalübertragung"
· Deterministic/stochastic description of space-time wireless channels
· Channel estimation and equalization
· Adaptive equalization (channel shortening)
· Multiple-input multiple-output (MIMO) and massive MIMO systems
· Orthogonal multiple access (OMA) and non-orthogonal multiple access (NOMA)
· Interference alignment
· Space-time coding
· Sphere decoding
· Adaptive beamforming
· Cooperative communication
· Cognitive radio and filter banks
· Compressive sensing and its applications in wireless communication systems
· 4G and 5G signal processing (e.g. waveform design)
We will also focus on signal processing for specific examples of wireless systems as:
· Satellite systems
· Fourth generation (4G) cellular mobile radio
· Five generation (5G) wireless networks
· Wireless backhauling of 5G
· Outdoor and indoor wireless positioning systems
·
Signal processing for vehicular communications
· Sixth generation (6G)
communication systems
Introduction to MATLAB and discussion of most important commands, simulation of a simple transmission chain, channel coding (convolutional codes), coding gain, channels with multipath propagation, models of fading channels and performance for binary transmission, Orthogonal Frequency-Division Multiplexing (OFDM), interleaving, implementation of an OFDM modem.