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ICASSP
2011
IEEE
7 years 7 months ago
Training design in single relay AF cooperative systems with correlated channels
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...
Christos Mavrokefalidis, Athanasios A. Rontogianni...
PIMRC
2010
IEEE
8 years 1 months ago
Vandermonde-subspace frequency division multiplexing receiver analysis
Abstract--Vandermonde-subspace frequency division multiplexing (VFDM) is a technique for interference cancellation in overlay networks that allows a secondary network to operate si...
Leonardo S. Cardoso, Francisco Rodrigo P. Cavalcan...
ICASSP
2009
IEEE
8 years 7 months ago
Timing and frequency synchronization for OFDM based cooperative systems
In this paper, we investigate the timing and carrier frequency offset (CFO) synchronization problem in decode and forward cooperative systems operating over frequency selective ch...
Qinfei Huang, Mounir Ghogho, Jibo Wei, Philippe Ci...
ICC
2007
IEEE
107views Communications» more  ICC 2007»
8 years 9 months ago
Additional Diversity Gain in OFDM Receivers under the Influence of IQ Imbalances
— In this paper, we analyze the effects of IQ (In-phase/ Quadrature-phase) imbalances at both transmitter and receiver of OFDM (Orthogonal Frequency Division Multiplexing) system...
Younghwan Jin, Jihyun Kwon, Yuro Lee, Jaemin Ahn, ...
GLOBECOM
2008
IEEE
8 years 9 months ago
Numerical Performance Evaluation of OFDM Systems Affected by Transmitter Nonlinearities, Phase Noise and Channel Estimation Erro
Abstract—In this contribution we present a numerical approach to evaluate the bit error rate and mutual information of OFDM links affected by transmitter nonlinearities, phase no...
Steffen Bittner, Marco Krondorf, Gerhard Fettweis
GLOBECOM
2008
IEEE
8 years 9 months ago
Joint Power Loading of Data and Pilots in OFDM Using Imperfect Channel State Information at the Transmitter
— The search for optimality in the design of channel precoders and training symbols in block processing communication systems is one of paramount importance. Finding the best tra...
Chitaranjan P. Sukumar, Ricardo Merched, Ahmed M. ...
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