Title :
Improved frame structure for TDS-OFDM systems
Author :
Chao Zhang ; Zhaocheng Wang ; Zhixing Yang
Author_Institution :
Dept. of Electron. Eng., Tsinghua Univ., Beijing, China
Abstract :
An improved frame structure for TDS-OFDM systems is presented by adopting cyclic block shifted training sequences. The guard interval needed for the training sequences could be shortened while the ability to combat the maximum channel delay spread is not sacrificed. Therefore the spectrum efficiency is increased. The corresponding channel estimation and equalisation schemes are also illustrated.
Keywords :
OFDM modulation; channel estimation; equalisers; TDS-OFDM systems; channel estimation; cyclic block shifted training sequences; equalisation schemes; improved frame structure; maximum channel delay spread; spectrum efficiency; time domain synchronous orthogonal frequency division multiplexing;
Journal_Title :
Electronics Letters
DOI :
10.1049/el.2012.1537
