A Portable Middleware Implementation of the DVB-H Client

• Main Authors: Chao-Hsien Lin, 林昭賢
• Other Authors: Chen-Chiung Hsien
• Format: Others
• Language: en_US
• Published: 2008
• Online Access: http://ndltd.ncl.edu.tw/handle/05973272517951230860

碩士 === 大同大學 === 資訊工程學系(所) === 96 === The specification of Digital Video Broadcasting–Handheld (DVB-H) developed by the European DVB Project has become European Telecommunication Standards Institute (ETSI) standard since Nov. 2004. Compared with DVB-Terrestrial (DVB-T), DVB-H is a mobile digital video broadcasting technology based on DVB-T. It combined the advantages of DVB-T, high mobility and wide receiving range, with Time-Slicing and Multi Protocol Encapsulation – Forward Error Correction (MPE-FEC) to reduce the power consumption and enhance the stability of receiver, respectively. The data must first be encapsulated into Internet Protocol (IP) compatible and then packetized into Transport Stream packets. Broadcaster can then transmit the MPE data. Not only IP encapsulation can achieve the purpose of DVB-T backward compatible but also makes the integration of broadcast and telecommunication much easier. Thus, digital content can be transmitted with only outer encapsulation changed. In this thesis, we will make a comparison between DVB-T and DVB-H systems. Then, we developed a portable middleware layer for the DVB-H client and some interactive applications above it. The applications could parse the DVB Transport Stream (TS) to get the Internet Protocol Data-Casting (IPDC). In addition, channel information named Electronic Service Guide (ESG) could be retrieved from IPDC. User can get more information by interacting with this kind of application. Two simple interactive applications are also developed for online voting and Video On Demand (VOD) on mobile devices. Java language is adopted to implement the middleware of the DVB-H client for portability without considering what operation system the user’s mobile is.