Sciweavers

TSP
2010
13 years 2 months ago
Channel estimation in wireless OFDM systems with irregular pilot distribution
Abstract--This paper addresses pilot-assisted channel estimation for wireless orthogonal frequency division multiplexing (OFDM) systems with irregular pilot arrangements. Using non...
Peter Fertl, Gerald Matz
TSP
2010
13 years 2 months ago
Sparse channel estimation for multicarrier underwater acoustic communication: from subspace methods to compressed sensing
Abstract--In this paper, we investigate various channel estimators that exploit channel sparsity in the time and/or Doppler domain for a multicarrier underwater acoustic system. We...
Christian R. Berger, Shengli Zhou, James C. Preisi...
TSP
2008
138views more  TSP 2008»
13 years 7 months ago
Iterative Joint Channel Estimation and Multiuser Detection for DS-CDMA in Frequency-Selective Fading Channels
Abstract--An iterative joint channel estimation, symbol detection, phase recovery and interference cancellation structure is proposed for asynchronous code-division multiple-access...
Sau-Hsuan Wu, Urbashi Mitra, C. C. Jay Kuo
ITIIS
2008
80views more  ITIIS 2008»
13 years 7 months ago
A Composite LMMSE Channel Estimator for Spectrum-Efficient OFDM Transmit Diversity
In this paper, we propose a subcarrier allocation method and a composite linear minimum mean square error (LMMSE) channel estimator to increase spectrum efficiency in orthogonal f...
Jeong-Wook Seo, Won-Gi Jeon, Jong-Ho Paik, Minho J...
ICC
1997
IEEE
108views Communications» more  ICC 1997»
13 years 11 months ago
MLSE Receiver for the Dispersive Rayleigh Fading Channel
: A maximum likelihood sequence estimator for the dispersive Rayleigh fading channel is developed. Following [1, 2], the MLSE uses a Kalman based channel estimator to acquire the c...
Wing Seng Leon, Desmond P. Taylor
ICC
2007
IEEE
303views Communications» more  ICC 2007»
14 years 1 months ago
Frequency Domain Channel Estimation for OFDM Based on Slepian Basis Expansion
Abstract—In this paper we propose a low complexity frequency domain channel estimator for pilot-symbol-assisted (PSA) orthogonal frequency division multiplexing (OFDM) systems in...
Jinho Kim, Chih-Wei Wang, Wayne E. Stark
GLOBECOM
2008
IEEE
14 years 1 months ago
Novel Tap-Wise LMMSE Channel Estimation for MIMO W-CDMA
—In this paper, a tap-wise LMMSE channel estimator for MIMO W-CDMA is derived. Descrambling operations applied to delayed versions of the received signal whiten the input signal....
Christian Mehlführer, Markus Rupp
GLOBECOM
2009
IEEE
14 years 2 months ago
Slepian-Based Serial Estimation of Time-Frequency Variant Channels for MIMO-OFDM Systems
Abstract—This paper proposes a low-complexity twodimensional channel estimator for MIMO-OFDM systems derived from a time-frequency variant channel estimator previously proposed. ...
Pierluigi Salvo Rossi, Ralf R. Muller, Ove Edfors