Winter Semester 2013/14


Bachelor- and Master Seminars

In preparation for your bachelor- or master thesis we offer bachelor- and master seminars. These seminars do combine the preparation of a special research topic incl. structured literature research and state-of-the-art analysis with learning the documentation and presentation skills needed in every industrial or academic job.

Bachelor- and master seminars are recommended or even mandatory in various study programs and will be dimensioned and credited appropriately. You will have to participate in regular meetings (biweekly during the semester, monthly during lecture free periods) and present your results to your peers.

Prerequisites: Bachelor- and master seminars are directly related to the prospective bachelor- resp. master thesis and therefore do require that you have all necessary requirements for starting the respective thesis. In addition you must have been donated a thesis topic by the telecommunications lab. Matlab experience, hearing or having heard Telecommunications I (+ Telecommunications II in case of master seminar) is strongly recommended.

Doctoral Privatissimum: Multimedia coding for broadband and broadcast networks

Remark: The course language (course and material) is English.

Multimedia streaming, a real-time delivery of compressed multimedia data is ubiquitous in today's broadband and broadcast networks. However, an efficient utilization of network resources (bandwidth, processing power, energy) in multimedia streaming is still an active research area. Central to this area are efficient multimedia compression and streaming algorithms.

The main topics of our privatissimum are the theoretical background, design and implementation of such algorithms. Specifically, we combine topics from modern video and audio compression, network congestion control, adaptive streaming and multiview 3D systems. 

Material: We cover these topics with a mix of selected book chapters and research papers. 

Required Education: We expect active class participation and in-class discussions from students. Knowledge of the basics of multimedia transmission and compression (acquired in courses such as TC2FMI, or similar) is helpful, but not mandatory.

Block Seminar: OFDM for Wireless Communications

HIS-LSF course information

Remark: The course language (course and material) is English.

In wireless communication systems Orthogonal Frequency Division Multiplexing (OFDM) is one of the key techniques and is based on the fast Fourier transform (FFT). Communication systems such as Wireless LAN (WLAN), Long Term Evo (lution (LTE), Worldwide Interoperability for Microwave Access (WiMAX), Digital Audio Broadcasting (DAB), Digital Video Broadcasting (DVB) etc. are based on this algorithm. Efficient and low complexity implementation of OFDM made it preferable recently. 

Mobile transmitters or receivers cause time variations due to the frequency shifts (Doppler shift). We know that OFDM is very sensitive to frequency shifts. In linear time-varying (LTV) channels Doppler shifts destroy the orthogonality and deteriorate the performance in the receiver.

This seminar covers the underlying challenges and issues and explores algorithms and systems of OFDM for wireless communications.

Advanced lecture (Vertiefungsvorlesung): Future Media Internet (FMI) (Video- & Audiotransport - A New Paradigm)

HIS-LSF course information

Remark: The course language (course and material) is English.

Already today a significant portion of the Internet traffic is due to audio/visual applications (VoIP, Youtube, IPTV). The used transport protocols (TCP, UDP/RTP), however, are inappropriate and lack means of optimised and application layer adapted content transport.

The course will introduce the requirements for media transport in the Internet, introduce proper channel models, calculate the channel capacity of those channels and derive a framework for optimised media transport. The focus is on the error coding in the transport layer, so that the results can be applied to any audio/visual application.

Besides giving an overview over recent specifications and standards (DVB, DLNA, ISMA) the course will introduce latest research results on media transport.

Material: A manuscript as well as lecture notes will be provided.

Required Education: As well Digital Transmission & Signal Processing (Telecommunications I) as Audio/visual Communications and Networks (Telecommunications II) are recommended for this course. Students with solid background in Computer Networks and Error Correction, however, are also encouraged to participate.

Core lecture (Stammvorlesung): Telecommunications I / Digital Transmission and Signal Processing (Nachrichtentechnik I / Digitale Übertragungstechnik & Signalverarbeitung)

HIS-LSF course information

Remark: The course can be given in English in case this will be recommended by the participants in the first lesson.

Digital Signal Transmission and Signal Processing refreshes the foundation that you have layed in "Signals and Systems / Signale und Systeme". We will, however, include the respective basics so that the various facettes of your introductory study period (Bachelor in Computer Science, Vordiplom Computer und Kommunikationstechnik, Elektrotechnik oder Mechatronik) and the potential main study period (Master in Computer Science, Diplom Ingenieur Computer und Kommunikationstechnik oder Mechatronik) will be payed respect to.

As the basic principle the course will give an introduction into the various building blocks that modern telecommunication systems do incorporate. Sources, sinks, source and channel coding, modulation and multiplexing are the major keywords but we will also deal with dedicated pieces like A/D- and D/A-converters and quantizers in a little bit more depth.

The course will refresh the basic transformations (Fourier, Laplace) that give access to system analysis in the frequency domain, it will introduce derived transoformations (z, Hilbert) for the anylysis of discrete systems and modulation schemes and it will briefly introduce algebra on finite fields to systematicly deal with error correction schemes that play an important role in modern communication systems.

Required Education: "Digital Transmission and Signal Processing" is a course during the main study period and by such requires a solid foundation of mathematics (differential and integral calculus) and probability theory. The course will, however, refresh those areas indispensibly necessary for telecommunications and potential intensification courses and by this open this potential field of intensification to everyone of you.