Abstract
The specification of Digital Video Broadcasting-Handheld(DVB-H)developed by the European DVB Project has become European Telecommunications Standards Institute(ETSI)standard since Nov. 2004. Compared with the conventional applications in fixed or portable terminals, transmission technology applied to handheld terminals has to satisfy more stringent requirements and environmental limitations. To consider the backwards compatibility with DVB-T(Terrestrial), DVB-H adds 4K mode and some extended Transmission Parameter Signaling(TPS)on Physical Layer defined by DVB-T. To lower power consumption of receiver and to enhance mobility, DVB-H also utilizes two key technologies, Time-Slicing and MPE-FEC, on Data-Link Layer. Moreover, DVB-H stipulates that the form of datagrams from Network Layer must be accordance to that of Internet Protocol(IP). In addition to solve problems regarding power consumption and mobile reception, DVB-H even provides functions of soft-handover and accommodates with other networks. There are four emerging mobile-TV standards in the world presently. They are DVB-H from Europe, DMB from Korea, ISDB-T from Japan and MediaFLO, which is developed by Qualcomm. It is predictable that DVB-H will be the mainstream in the future. In this thesis, the development background and system concept of DVB-H will be introduced first. The contents of Physical Layer on DVB-T and DVB-H will also be explained clearly. And then, the technologies of Data-Link Layer, Time-Slicing and MPE-FEC, are going to be discussed along with the analyses about the relationship between various parameters and reception performance. Simultaneously, a novel decoding approach is proposed to improve the MPE-FEC decoding efficiency. Some simulation results are provided to verify the analysis results and the efficacy of the proposed MPE-FEC iterative decoding approach as my conclusion. Last but not least, we will recommend four strategies on how to select DVB-H system parameters based on the above findings.