The Research And Simulation Of Mobile TV System Based On DVB-H Standard

The DVB-H standard of mobile TV and its fundamental standard of DVB-T are analyzed in detail. An advanced research of DVB-H system structure and its channel coding technology are carried out and a FEC scheme that RS codes of DVB-H standard could be replaced by LDPC codes which present a better performance are proposed. A simulation of LDPC codes and RS codes both in AWGN and Rayleigh fading channel model using MATLAB software are done, basing on the simulation, the performance of the two kinds of codes are compared and analyzed. The thesis also studies main factors that influent the terminals'power consumption and offers the influencing degree for the power saving caused by the factors above. Applying short-range link communication into the mobile TV system, a scheme for power saving that multi-terminals receive IP data cooperatively in small range assisted by short-range link is brought forward, and finally three basic topology structures of cooperation network are designed.