Title :
Training design in single relay AF cooperative systems with correlated channels
Author :
Mavrokefalidis, Christos ; Rontogiannis, Athanasios A. ; Berberidis, Kostas
Author_Institution :
Dept. of Computer engineering and Informatics, University of Patras, Greece
Abstract :
In this paper, training design is studied for a single relay amplify-and-forward cooperative network. The taps of the frequency selective channels are assumed to be correlated and OFDM modulation is used for transmission. Based on the least squares (LS) criterion, conditions for pilot tone positioning and a number of power allocation schemes are described. Analytical closed-form power allocation expressions are provided for both the source and the relay. The theoretical results are fully corroborated by simulations.
Keywords :
Channel estimation; Correlation; Erbium; OFDM; Relays; Resource management; Training; LS criterion; Training design; cooperative communications; correlated channels;
Conference_Titel :
Acoustics, Speech and Signal Processing (ICASSP), 2011 IEEE International Conference on
Conference_Location :
Prague, Czech Republic
Print_ISBN :
978-1-4577-0538-0
Electronic_ISBN :
1520-6149
DOI :
10.1109/ICASSP.2011.5947094
