Title :
Channel Estimation for STBC MB-OFDM UWB Systems with Superimposed Training
Author :
Yang, Qinghai ; Kwak, Kyung Sup ; Fu, Fenglin
Author_Institution :
Sch. of Telecommun. Eng., Xidian Univ., Xi´´an
Abstract :
A novel channel estimation scheme based on superimposed training is proposed for space time block coded (STBCO) multi-band (MB) orthogonal frequency division multiplexing (OFDM) ultra-wideband (UWB) systems. The optimal training symbols are derived with respect to the least square (LS) channel estimate mean square error (MSE). Simulation shows that the proposed scheme benefits much higher effective data throughput over the conventional method.
Keywords :
OFDM modulation; block codes; channel estimation; least mean squares methods; space-time codes; ultra wideband communication; STBC MB-OFDM UWB systems; channel estimation; least square channel estimate mean square error; multi-band orthogonal frequency division multiplexing systems; optimal training symbols; space time block coded systems; superimposed training; ultra-wideband systems; Channel estimation; Diversity reception; Frequency estimation; Laboratories; Least squares approximation; OFDM; Physical layer; Space technology; Throughput; Transmitting antennas; MB-OFDM; STBC; UWB; channel estimation;
Conference_Titel :
Communications and Information Technologies, 2008. ISCIT 2008. International Symposium on
Conference_Location :
Lao
Print_ISBN :
978-1-4244-2335-4
Electronic_ISBN :
978-1-4244-2336-1
DOI :
10.1109/ISCIT.2008.4700190
