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In MPEG media transport (MMT)-based next-generation broadcasting systems, hybrid channel usage of broadcast and broadband is easier and more practical than in MPEG-2 transport stream-based broadcasting systems because of a common encapsulation format for media data and coordinated universal time-based media synchronous mechanisms. We have developed an MMT receiver and conducted an experiment with...
An UHDTV broadcasting system employing MPEG Media Transport (MMT) as its media transport protocol has been proposed for hybrid delivery of content. On the basis of this proposal, an MMT-based UHDTV broadcasting system has already been standardized and is being developed in Japan. This paper describes the structure of that system. The system supports hybrid delivery and has mechanisms to carry Universal...
The present paper is motivated by the question how we can quickly transfer large-sized file if multiple (heterogeneous) networks are available but each of which has quite insufficient performance for the requested task. We propose a research framework for large-sized data transfer by integrating multiple and heterogeneous challenged access networks, in which long delays, leaks (heavy packet losses),...
With the development of high rate data transmission technology via distribution line communication, the electric power, data, voice and video can be transferred in the same electric power distribution network, and the technology will be put in operation widely in the future. However the traditional technology of power line communication is not adaptable to the complex and harsh environment of distribution...
A scheme that exploits the broadcast nature of the wireless communication in order to achieve multicast content delivery is presented in this paper. As opposed to broadcasting, this method enables the clients to determine on-line the delivered content, and thus preserves the advantages of an individual service. On the other hand, a multicast content delivery is much more efficient than a unicast content...
This paper explores the attributes, layering models and objective functions in cross layer designs for mobile ad hoc wireless networks by taking all the statistical characteristics and constraints from the physical (PHY) layer, media access control (MAC) layer and network (NET) layer into consideration. This paper reviews the entire network optimization across all the PHY/MAC/NET layers. At the PHY...
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