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» On the Power of Imperfect Information
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TWC
2008
150views more  TWC 2008»
14 years 9 months ago
Improved iterative detection and achieved throughputs of OFDM systems under imperfect channel estimation
Abstract--Assuming imperfect channel estimation, we propose an improved detector for orthogonal frequency-division multiplexing (OFDM) systems over a frequency-selective fading cha...
Seyed Mohammad Sajad Sadough, Pierre Duhamel
ICC
2007
IEEE
145views Communications» more  ICC 2007»
15 years 4 months ago
Adaptive vs. Diversity Transmission for Multiuser MISO Systems with Imperfect CSIT
Abstract— Adaptive transmission techniques including transmit beamforming, precoding, and opportunistic scheduling offer high spectral efficiency when channel state information ...
Frederick K. H. Lee, Mai H. Vu, Arogyaswami Paulra...
INTERSPEECH
2010
14 years 4 months ago
Emotion recognition using imperfect speech recognition
This paper investigates the use of speech-to-text methods for assigning an emotion class to a given speech utterance. Previous work shows that an emotion extracted from text can c...
Florian Metze, Anton Batliner, Florian Eyben, Tim ...
TSP
2010
14 years 4 months ago
Linear precoder design through cut-off rate maximization in MIMO-OFDM coded systems with imperfect CSIT
This paper proposes a linear transmitter design that aims at minimizing the packet error rate (PER) using partial channel state information at the transmitter (CSIT). The design is...
Francesc Rey, Meritxell Lamarca, Gregori Vá...
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ICC
2008
IEEE
197views Communications» more  ICC 2008»
15 years 4 months ago
V-BLAST Receiver and Performance In MIMO Relay Networks with Imperfect CSI
Abstract —Previous work demonstrated that the improvements in spectral efficiency and link reliability can be obtained in wireless relay networks employing terminals with MIMO c...
Jiansong Chen, Xiaoli Yu, C. C. Jay Kuo