지상파 이동멀티미디어 방송의 전송률 개선기법 연구

Research on the data rate increasing technique for terrestrial mobile multimedia broadcasting

We propose a data rate increasing technique for T-DMB (terrestrial digital multimedia broadcasting) system. With the application of hierarchical modulation, it is possible to increase data rate and improve services. We conducted the performance analysis of the proposed hierarchical modulation in AWGN channel and showed the BER analysis. The simulation results show that the proposed method shows possibilities to increase the data rate with a moderate degradation of the existing system.