Sciweavers

TSP
2010
12 years 11 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
12 years 11 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 4 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 4 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 8 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»
13 years 11 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
13 years 11 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
13 years 11 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