interoperable communication of complex scenes containing audio, video, synthetic audio, and graphics material. In part 1 of this two-part article (in the previous issue) we provided a comprehensive overview of the technical elements. Here in part 2 we describe an application scenario based on digital satellite television broadcasting, discuss the standard’s envisaged evolution, and compare it t...

Video broadcasting protocols can improve the efficiency of video on demand services by reducing the bandwidth required to distribute the videos that are simultaneously watched by many viewers While many broadcasting protocols have been proposed, none of them takes into account the fact that the server will broadcast compressed videos whose bandwidth requirements depend on the rate of change of ...

The Fast Broadcasting scheme is one of the simplest schemes that provide video services. In this scheme, the video is divided into equal-sized segments depending upon the bandwidth allocated by the video server. If the video length is not known, then this scheme cannot be applied as the number of video segments cannot be determined. In a live video wherein the video size is unknown, especially ...

Digital Video Broadcasting (DVB) defines the carriage of multimedia information to clients by means of MPEG-2 Transport Streams (TS). Within MPEG-2 transport stream, it is also possible to carry defined data containers that can be used to realize new data services or to carry IP datagrams. In this paper, we analyze this for carrying best-effort IP traffic within the prioritized video traffic. W...

The Common Scrambling Algorithm (CSA) is used to encrypt streams of video data in the Digital Video Broadcasting (DVB) system. The algorithm cascades a stream and a block cipher, apparently for a larger security margin. In this paper we set out to analyze the block cipher and the stream cipher separately and give an overview of how they interact with each other. We present a practical attack on...

This paper presents the field trial results of digital audio broadcasting (DAB), DAB+ and terrestrial-digital multimedia broadcasting (TDMB) audio systems to provide useful information about each digital radio broadcasting standard. Although the all methods are representative digital radio broadcasting standards based on Eureka-147, they have different parts from each other. This field trial re...