Neumann, P.; Qi, J.
FKT - Fachzeitschrift für Fernsehen, Film und Elektronische Medien, März 2012
Mit ?Dynamic Broadcast? wird ein Forschungsfeld beschrieben, dessen zentrales Ziel die Dynamisierung des klassischen Fernsehrundfunks ist. Die Übertragung von TV-Inhalten kann hierbei im Gegensatz zu klassischen Rundfunksystemen nicht ausschließlich über ein terrestrisches Rundfunknetz, sondern alternativ auch über ein separates Breitbandnetz erfolgen. Ziel ist es, durch neuartige Verfahren für die Zustellung von Medieninhalten eine möglichst effiziente Nutzung des terrestrischen Fernsehspektrums zu erreichen. Im Beitrag werden verschiedene Aspekte eines Dynamic-Broadcast-Systems, wie die Erstellung optimierter dynamischer Sendepläne, die dynamische Nutzung verfügbarer Frequenzressourcen und die ?Online-Justierung? der Rundfunkparameter erläutert. Des Weiteren werden einige Simulationsergebnisse und der Labordemonstrator vor-gestellt, der seit Beginn 2010 am Institut für Nachrichtentechnik aufgebaut wurde.
Neumann, P.; Reimers, U.:
IEEE International Conference on Consumer Electronics, Las Vegas, Vol.58, No. 1, Pp.53-59, February 2012
In Dynamic Broadcast it is assumed that user terminals provide an interface to both a broadcast network and a broadband network. In addition, they are expected to be equipped with a storage device. The user terminals are capable of composing linear TV services of individual content items, which are either being received live via the broadcast or the broadband network or which are played back from a local storage device if they have been received before. Multiple content delivery mechanisms are supported, including live- and pre-transmission of TV programs. Inside the user terminals, a combined usage of one or more broadcast tuners, the broadband interface, and the local storage device is therefore required. In this paper, we discuss how the interaction of these devices can be managed in order to allow for the live and time-shifted delivery of TV content via dynamically changing distribution channels. Further, a demonstrator of a user terminal is presented, which allows the interruption-free presentation of TV services in a Dynamic Broadcast environment, where live as well as time-shifted content delivery mechanisms are in use.
Neumann, P.; Qi, J.; Reimers, U.
2011 IEEE International Symposium on Broadband Multimedia Systems and Broadcasting
There is an on-going trend in consumer electronics to equip TV sets and set-top boxes with network adapters so that they can easily be integrated into a home network and be connected to the Internet. In consequence, such user terminals can receive the media content delivered via a broadcast network as well as additional content via the broadband connection. In Dynamic Broadcast, we assume that every content component of a linear TV service can be delivered either via broadcast or via broadband so that the complete TV service can be created from those components just in the user terminal according to a pre-transmitted schedule of events. In Dynamic Broadcast, TV services are no longer assigned to fixed physical or logical channels so that user terminals have to perform seamless switching between both delivery networks. In this paper, we discuss the requirements for user terminals in such an environment. Further, we developed an architecture for a user terminal, which aims to meet these challenges. We present an implementation of this architecture and a demonstrator. Furthermore, we show how switching between broadcast and broadband as well as between two different broadcast channels can be performed during a running TV program in a way unnoticeable for the user.
Qi, J.; Neumann, P.; Reimers, U.
14th ITG Conference on Electronic Media Technology
The field of Consumer TV has developed rapidly in the last years. The new user terminals (TV set and Set-top-box) are increasingly equipped with multiple network connection interfaces (broadcast, WiFi, USB etc.) as well as built-in storage. In this paper, we utilized these features to optimize the operation of broadcast networks and to make the use of the valuable broadcast spectrum more efficient. We developed the architecture of the dynamic broadcast system, in which the TV content can be flexibly transmitted via both broadcast and broadband networks, in both real-time and non-real-time fashion, and the transmission parameters in the broadcast network can also be modified dynamically. To examine the benefits that the proposed techniques can provide we simulated the content delivery scheduling with realistic TV program data and transmission cost models. The scheduling problem was solved using integer linear programming and our findings showed that dynamic broadcast can reduce the TV programs? delivery cost and increase the efficiency of spectrum usage at the same time. The freed data rate/spectrum can be utilized to deliver more services, or to adjust the broadcast network settings to reduce power consumption, or even be leased to secondary wireless communication networks. A possible architecture of a dynamic broadcast user terminal is also presented in this paper.
Peter Neumann
Born in 1982
Work Experience
since 01/10 Research assistant at the Institute for Communications Technology
11/08 - 05/09 Internship at NXP Semiconductors in Hamburg
08/02 - 09/02 Internship at the Hoermann IMG in Nordhausen
Education
10/02 - 09/09 Studies in Electrical Engineering at Braunschweig University of
Technology, Specialization in the field of Communication Technology
02/07 - 07/07 Semester abroad at the Telecommunication Engineering School,
Polytechnic University of Madrid, Spain
Entire publication list
