3-HD Panorama Video Transmission Experiment -Satellite Stadium Experiment

Abstract

The Communications Research Laboratory (CRL) of Japan and the Electronics and Telecommunications Research Institute (ETRI) of Korea have carried out Korea-Japan high-data-rate satellite communications experiments since 1999. In the final phase, a 3-high definition (HD) panorama video transmission experiment was carried out during the 2002 World Cup held in Korea and Japan using two Ka-band satellites and terrestrial fiber networks. Introduction The Communications Research Laboratory (CRL) of Japan and the Electronics and Telecommunications Research Institute (ETRI) of Korea have carried out Korea-Japan high-data-rate satellite communications experiments since 1999. The phase 1 experiments were carried out using the 45-Mbps links of the Ku-band transponder of the PanAmSat-2 that connected the Kashima Space Research Center (KSRC) of CRL with ETRI[1]. A High Definition (HD) TV transmission experiment and an IP over ATM transmission experiment were carried out in December 2000. The phase 2 experiments were done using the 155-Mbps links of the Ka-band transponder of the Koreasat-3 that connected CRL Kitakyushu earth station and ETRI earth station. A three dimensional (3D)-HD video transmission experiment, a 3-HD panorama video transmission experiment[2], and an IP over ATM transmission experiment[3] were conducted. During the final phase, two kinds of HD video transmission experiments were done during the 2002 FIFA World Cup. The Japanese group planned the 3-HD panorama video transmission experiment and the Korean group planned the 3D-HD video transmission experiment[4]. This paper only describes the 3-HD panorama video transmission experiment that we called the “Satellite Stadium”. Satellite communications have advantages in covering a wide-area and having a flexible network configuration. Optical fiber networks have advantages with wide bandwidth and high quality, which are insensitive to network errors. The 3-HD panorama video transmission experiment is an application that made use of both these advantages. The Satellite Stadium experiments were carried out over 11 of the 2002 FIFA World Cup matches held in Korea and Japan. We used the 155-Mbps transponders of the Ka-band (30/20 GHz) satellites and optical fiber networks. This paper describes the network configuration for the Satellite Stadium and the demonstration. The results of the experiment are presented along with a discussion on the problems that arose. Configuration of Satellite Stadium The Satellite Stadium is a 3-HD panorama video transmission system using a satellite communication link. CRL, the Ministry of Public Management, Home Affairs, Posts and Telecommunications (MPHPT), ETRI, and others carried out the Satellite Stadium experiment during the 2002 World Cup held in Korea and Japan in June 2002. The conceptual configuration for the Satellite Stadium from Korea is in Fig. 1. The configuration for the system in Japan is different only in the number of satellites and optical fiber network used. A 3-HD panorama camera system was installed at the football stadium and it covered the whole pitch in a single wide-angle-shot. The system used one lens and three HD cameras and the original image was divided by a prism into three separate HD images (left, center, and right). The three output signals from the 3-HD panorama camera were each input into one of the three MPEG-2 encoders. The encoded signals were multiplexed at the transport stream multiplexer (TSMUX) and encapsulated in ATM cells at the CLAD. ATM signals were sent to the earth station through optical fiber networks and uplinked to the Ka-band satellite. The data rate at the satellite uplink was 155Mbps (OC-3) and the 21st International Communications Satellite Systems Conference and Exhibit AIAA 2003-2203 Copyright © 2003 by the American Institute of Aeronautics and Astronautics, Inc. All rights reserved. 2 American Institute of Aeronautics and Astronautics modulation scheme was a Trellis-coded 8-PSK with Reed-Solomon code (255, 235). At the demonstration halls, the received signals were transformed to transport stream signals at the CLAD, decoded at the decoder, and fed into three projectors (left, center, and right). Network configuration Fig. 2 shows the network configuration for the Satellite Stadium experiment at the 2002 World Cup. The signals from the matches in the Korean stadium were sent to ETRI through a optical fiber network. ETRI had a Ka-band earth station with a 7-m antenna. The signals from the ETRI earth Figure 1. Configuration for Satellite Stadium. Figure 2. Network configuration for Satellite Stadium experiment during 2002 World Cup. Figure 1. Configuration for Satellite Stadium.