Title :
A general SFN structure with transmit diversity for TDS-OFDM system
Author :
Wang, Jian-Tao ; Song, Jian ; Wang, Jun ; Pan, Chang-Yong ; Yang, Zhi-Xing ; Yang, Lin
Author_Institution :
Dept. of Electron. Eng., Tsinghua Univ., Beijing, China
fDate :
6/1/2006 12:00:00 AM
Abstract :
In the digital television terrestrial broadcasting, the Single Frequency Network (SFN) has much advantage. SFN can serve an arbitrary large area with the same information broadcasted at the same frequency, resulting in the potential diversity gain. To improve the transmission performance of the Time Domain Synchronous-Orthogonal Frequency Division Multiplexing (TDS-OFDM) system in SFN, a general SFN structure with transmit diversity is introduced, theoretically analyzed and computer simulated. The proposed SFN structure is flexible to set up. Simulations show that this method can greatly improve the reliability of the signal transmission over the frequency selective fading channels and is suitable for the TDS-OFDM system in SFN.
Keywords :
OFDM modulation; digital video broadcasting; diversity reception; fading channels; time-domain analysis; SFN structure; TDS-OFDM system; digital television terrestrial broadcasting; diversity transmission; frequency selective fading channel; orthogonal frequency division multiplexing; single frequency network; time domain synchronous; Analytical models; Computational modeling; Computer simulation; Digital TV; Diversity methods; Frequency diversity; Frequency division multiplexing; Performance analysis; TV broadcasting; Time domain analysis; Digital television terrestrial broadcasting (DTTB); single frequency network (SFN); space-time block code (STBC); terrestrial digital multimedia/television broadcasting (DMB-T); time domain synchronous-orthogonal frequency division multiplexing (TDS-OFDM); transmit diversity;
Journal_Title :
Broadcasting, IEEE Transactions on
DOI :
10.1109/TBC.2006.872988
