Winter Semester 2012/13
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.
Main Seminar: Dynamic Streaming
Multimedia has been an integral part of communications and entertainment applications for many years. With the growth and popularity of the Internet, multimedia delivery over best-effort packet networks such as the Internet has become an important research area. To be effective, multimedia needs to be presented to users in high quality and without interruptions. So the term “streaming” is used to refer to the process of delivering multimedia as a continuous stream of audio-visual data. Multimedia streaming has become a dominant traffic type in the Internet. However, multimedia over best-effort packet network faces a number of challenges including: unknown and time-varying bandwidth, delay and losses, as well as many additional issues e.g. fair sharing of network resources and the efficiency of one-to-many communications. Furthermore, the rapid growth and the ubiquity of the wireless and mobile networks make the challenges and issues in multimedia streaming even more technically difficult.
Dynamic streaming is an emerging technical solution that improves the efficiency of streaming multimedia by dynamically adjusting streaming parameters, such as the video quality of a stream. Several different techniques, algorithms and systems have been centered around this concept and are active research topics in academia and industry. They aim to provide users with the best possible viewing experience their network and local hardware can support.
This seminar examines the state of the art in dynamic streaming, the underlying challenges and issues and explores algorithms and systems that enable streaming of multimedia over IP networks.
News : updated on 28.01.2013!
Advanced lecture (Vertiefungsvorlesung): Future Media Internet (FMI) (Video- & Audiotransport – A New Paradigm)
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)
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.