Title :
Improving performance of coherent coded OFDM systems using space time transmit diversity
Author :
Stirling-Gallacher, R.A. ; Wang, Z.
Author_Institution :
Sony Int. Europe GmbH, Stuttgart, Germany
fDate :
3/29/2001 12:00:00 AM
Abstract :
The performance gain of space time transmit diversity (STTD) for coded OFDM systems using space time block coding (STBC) is investigated. In particular, it is proposed to use pilot patterns, which are orthogonal in both the frequency and time directions. Therefore, to obtain channel estimates from the separate transmit antennas the receiver can use either adjacent pilots in the frequency direction or adjacent pilots in the time direction
Keywords :
OFDM modulation; block codes; digital radio; diversity reception; multipath channels; coherent coded OFDM systems; performance improvement; pilot patterns; space time block coding; space time transmit diversity;
Journal_Title :
Electronics Letters
DOI :
10.1049/el:20010292
