Title :
A simple space-frequency transmitter diversity scheme for TDS-OFDM in SFN
Author :
Wang, Jintao ; Pan, Changyong ; Yang, Zhixing
Author_Institution :
State Key Lab. on Microwave & Digital Commun., Tsinghua Univ., Beijing, China
Abstract :
To improve the transmission performance of a time domain synchronous-OFDM (TDS-OFDM) system in a single frequency network (SFN), a simple space-frequency transmitter diversity scheme is introduced. Considering the frame structure of the TDS-OFDM system, simple configurations of transmitted signals are constructed. The proposed scheme maintains the original transmitter branch and the network structure is flexible to set up. Through the simulation, it is proved that the introduced scheme can achieve great diversity gain both in slow and fast fading channels and can improve the reliability of signal transmission. It would be applicable for TDS-OFDM in SFN.
Keywords :
OFDM modulation; delays; digital video broadcasting; diversity reception; fading channels; reliability; delay spread; diversity gain; fast fading channels; frame structure; signal transmission reliability; single frequency network; slow fading channels; space-frequency transmitter diversity; terrestrial digital multimedia-television broadcasting; time domain synchronous OFDM system; transmitted signal configurations; transmitter branch; Delay; Digital communication; Diversity methods; Fading; Intelligent networks; Laboratories; OFDM; Receiving antennas; TV broadcasting; Transmitters;
Conference_Titel :
Communications, Circuits and Systems, 2005. Proceedings. 2005 International Conference on
Print_ISBN :
0-7803-9015-6
DOI :
10.1109/ICCCAS.2005.1493406
