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(2008)" DOI: 10.1109/ICCS.2008.4737413 Analysis and Performance Comparison of DVB-T and DTMB Systems for Terrestrial Digital TV

By Ming Liu, Matthieu Crussière Member Ieee, Jean-françois Hélard Senior Ieee and Oudomsack Pierre Pasquero

Abstract

Abstract — Orthogonal frequency-division multiplexing (OFDM) is the most popular transmission technology in digital terrestrial broadcasting (DTTB), adopted by many DTTB standards. In this paper, the bit error rate (BER) performance of two DTTB systems, namely cyclic prefix OFDM (CP-OFDM) based DVB-T and time domain synchronous OFDM (TDS-OFDM) based DTMB, is evaluated in different channel conditions. Spectrum utilization and power efficiency are also discussed to demonstrate the transmission overhead of both systems. Simulation results show that the performances of the two systems are much close. Given the same ratio of guard interval (GI), the DVB-T outperforms DTMB in terms of signal to noise ratio (SNR) in Gaussian and Ricean channels, while DTMB behaves better performance in Rayleigh channel in higher code rates and higher orders of constellation thanks to its efficient channel coding and interleaving scheme

Topics: OFDM
Year: 2008
OAI identifier: oai:CiteSeerX.psu:10.1.1.371.3118
Provided by: CiteSeerX
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