Search

This paper considers the potential for an HDTV delivery format with 1920 x 1080 pixels progressive scanning and 50 frames per second in broadcast applications. The paper discusses the difficulties in characterizing the display to be assumed for reception. It elaborates on the required bit rate of the 1080p/50 format when critical content is coded in MPEG-4 H.264 AVC Part 10 and subjectively viewed on a large, flat panel display with 1920 x 1080 pixel resolution. The paper describes the initial subjective quality evaluations that have been made in these conditions. The results of these initial tests suggest that the required bit-rate for a 1080p/50 HDTV signal in emission could be kept equal or lower than that of 2nd generation HDTV formats, to achieve equal or better image quality. [ABSTRACT FROM AUTHOR]

Digital satellite multimedia broadcasting services in Europe are specified in the Mobile Satellite Services (MSS) frequency band by two recently developed standards, namely the European Telecommunications Standards Institute (ETSI) Satellite Digital Radio (SDR) and the Digital Video Broadcasting—Satellite services to Handhelds (DVB-SH) standards. Commercial deployment of operational systems based on these standards is foreseen in the coming years targeting mainly six large European markets. For these standards, a state-of-the-art channel code is deployed based on the 3rd Generation Partnership Project 2 (3GPP2) specifications having a wide range of coding rates. The purpose of this paper is twofold: (i) It studies and compares, for the first time, the Bit Error Rate (BER) performance of the 3GPP2 turbo code used in the aforementioned systems, in order to serve as a benchmark for system design engineers; and (ii) It investigates novel alternative channel coding schemes, including other state-of-the-art turbo code configurations and also Low-Density Parity-Check (LDPC) codes with linear-time encoding, such as the Irregular Repeat-Accumulate (IRA) codes, in order to improve the performance and/or reduce the complexity in future mobile satellite broadcasting systems. Extensive performance evaluation results in the Additive White Gaussian Noise (AWGN) and uncorrelated Rayleigh/Rician fading channels have shown that the use of turbo codes with higher number of states improves performance against the 3GPP2 turbo codes of up to 0.25 dB but the decoding complexity is almost doubled. Furthermore, the use of duo-binary turbo codes reduces decoding latency and makes them more robust in puncturing with performance improvement against the 3GPP2 turbo codes of up to 0.3 dB but performance degrades at very low coding rates. On the other hand, the use of Rate Compatible (RC)-IRA codes results in smaller performance improvement against the 3GPP2 turbo codes, i.e. up to 0.1 dB, but rate compatibility is used to obtain different coding rates with simple puncturing/extending method. [ABSTRACT FROM PUBLISHER]

3D-TV is a topic that has been studied for many years in Europe. Through the research frameworks of the European Commission in particular, a number of long-term issues have been addressed to overcome limitations of the traditional two-view stereoscopy. This article gives a brief overview of the goals and achievements of some completed European projects starting in the 1990s. It then reviews the topics related to 3D-TV in recent European research. Finally an overview with a selection of recent projects is presented. [ABSTRACT FROM AUTHOR]

Describes a network established to field test protection ratios which are needed in order to plan the coverage of digital networks and minimize interference from co-channel transmitters. Digital terrestrial television standard approved by the European Telecommunications Standard Institute using Coded Orthogonal Frequency Division Multiplexing; Description of MOTIVATE and VALIDATE projects.

Focuses on digital video broadcasting-terrestrial (DVB-T) standards in Europe, while implementing a prototype of a Digital Television Terrestrial Broadcasting System (DTTBS). Function of the DTTBS; Presentation of an optimization process of the system parameters; Details on Europe's DVB-T standards.