Title :
Cutoff rate and outage probability performance comparisons between DVB-T and DMB-T systems under mobile multipath channels
Author :
Zheng, Zi-Wei ; Yang, Zhi-Xing ; Pan, Chang-Yong ; Zhu, Yi-Sheng
Author_Institution :
Electron. Eng. Dept., Tsinghua Univ., Beijing, China
Abstract :
As an effective technique for combating multipath fading and for high-bit-rate transmission over wireless channels, orthogonal frequency-division multiplexing (OFDM) is extensively used in modern terrestrial digital television broadcasting systems to support high performance bandwidth-efficient multimedia services. Cutoff rate and outage probability are two important criteria to evaluate the performance of a practical communication system in radio engineering. In this paper, the cutoff rate and outage probability performance are compared between two important terrestrial digital television broadcasting systems, the cyclic prefix OFDM based DVB-T system and the time domain synchronous OFDM based DMB-T system, under different mobile multipath channel conditions. The DVB-T system and the DMB-T system are summarily introduced. The cutoff rate and outage probability expressions are developed, and simulation results are given for both the DVB-T system and the DMB-T system.
Keywords :
OFDM modulation; digital video broadcasting; fading channels; mobile radio; multimedia communication; multipath channels; probability; DMB-T; DVB-T; bandwidth-efficient multimedia services; cutoff rate; cyclic prefix; high-bit-rate transmission; mobile multipath channels; multipath fading; orthogonal frequency-division multiplexing; outage probability; performance comparisons; terrestrial digital television broadcasting; time domain synchronous OFDM; wireless channels; Digital TV; Digital multimedia broadcasting; Digital video broadcasting; Fading; Frequency division multiplexing; Multimedia communication; Multipath channels; OFDM; Radio broadcasting; TV broadcasting;
Journal_Title :
Broadcasting, IEEE Transactions on
DOI :
10.1109/TBC.2003.819524