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Träfflista för sökning "LAR1:cth ;pers:(Viberg Mats 1961)"

Search: LAR1:cth > Viberg Mats 1961

  • Result 61-70 of 172
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61.
  • Lioliou, Panagiota, 1982, et al. (author)
  • Self-Interference Suppression in Full-Duplex MIMO Relays
  • 2010
  • In: 44th Asilomar Conference on Signals, Systems and Computers. - 1058-6393. - 9781424497218 ; , s. 658-662
  • Conference paper (peer-reviewed)abstract
    • Full-duplex relays can provide cost-effective cover-age extension and throughput enhancement. However, the main limiting factor is the resulting self-interference signal which deteriorates the relay performance. In this paper, we propose a novel technique for self-interference suppression in full-duplex Multiple-Input Multiple-Output (MIMO) relays. The relay employs transmit and receive weight filters for suppressing the self-interference signal. Unlike existing techniques that are based on zero forcing of self-interference, we aim at maximizing the ratio between the power of the useful signal to the self-interference power at the relay reception and transmission. Our simulation results show that the proposed algorithm outperforms the existing schemes since it can suppress interference substantially with less impact on the useful signal.
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62.
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63.
  • Lundgren, Astrid, 1978, et al. (author)
  • Array calibration using local models
  • 2006
  • In: Antenn 06, Nordic Antenna Symposium. ; , s. 251-256
  • Conference paper (other academic/artistic)
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69.
  • Mecklenbräuker, Christoph F., et al. (author)
  • Eigenbeam transmission over line-of-sight MIMO channels for fixed microwave links
  • 2011
  • In: Proceedings - ITG/IEEE Workshop on Smart Antennas (WSA). - 9781612840741
  • Conference paper (peer-reviewed)abstract
    • We propose and analyze eigenbeam transmission over line-of-sight (LOS) multiple-input multiple-output (MIMO) channels with linear reception. In particular, we consider fixed point-to-point microwave links for which the singular value decomposition of the LOS MIMO channel matrix is analytically derived. We demonstrate that the Tx eigenbeams can be defined without channel state information at the transmitter and that the beams admit an insightful physical interpretation. We also evaluate the performance of a lattice-reduction aided linear receiver through numerical simulations.
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70.
  • Mecklenbräuker, Christoph F., et al. (author)
  • Sequential Bayesian Sparse Signal Reconstruction Using Array Data
  • 2013
  • In: IEEE Transactions on Signal Processing. - : Institute of Electrical and Electronics Engineers (IEEE). - 1941-0476 .- 1053-587X. ; 61:24, s. 6344-6354
  • Journal article (peer-reviewed)abstract
    • In this paper, the sequential reconstruction of source waveforms under a sparsity constraint is considered from a Bayesian perspective. Let the wave field, which is observed by a sensor array, be caused by a spatially-sparse set of sources. A spatially weighted Laplace-like prior is assumed for the source field and the corresponding weighted Least Absolute Shrinkage and Selection Operator (LASSO) cost function is derived. After the weighted LASSO solution has been calculated as the maximum a posteriori estimate at time step, the posterior distribution of the source amplitudes is analytically approximated. The weighting of the Laplace-like prior for time step is then fitted to the approximated posterior distribution. This results in a sequential update for the LASSO weights. Thus, a sequence of weighted LASSO problems is solved for estimating the temporal evolution of a sparse source field. The method is evaluated numerically using a uniform linear array in simulations and applied to data which were acquired from a towed horizontal array during the long range acoustic communications experiment.
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  • Result 61-70 of 172
Type of publication
conference paper (112)
journal article (47)
book chapter (10)
reports (1)
other publication (1)
patent (1)
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Type of content
peer-reviewed (152)
other academic/artistic (20)
Author/Editor
Viberg, Mats, 19... (172)Undo refine
McKelvey, Tomas, 196 ... (22)
Coldrey, Mikael, 197 ... (15)
Rylander, Thomas, 19 ... (14)
Panahi, Ashkan, 1986 (14)
Stoica, P (13)
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Cerullo, Livia, 1982 (9)
Ozcelikkale, Ayca, 1 ... (8)
WINGES, JOHAN, 1987 (7)
Chen, Ming, 1972 (7)
Folestad, Staffan (6)
Gradinarsky, Lubomir ... (6)
Larzabal, P. (6)
Eriksson, Thomas, 19 ... (5)
Gu, Irene Yu-Hua, 19 ... (5)
Ottersten, Björn E. (5)
Matthaiou, Michail, ... (5)
Pelin, Per, 1969 (5)
Ferreol, A. (5)
Wu, Q (4)
Wong, M (4)
Eriksson, Jonny, 196 ... (4)
Ranheim, Anders, 196 ... (4)
Falk, K (4)
Yang, Jian, 1960 (3)
Gustavsson, Tomas, 1 ... (3)
Maaskant, Rob, 1978 (3)
Mecklenbräuker, Chri ... (3)
Zoubir, A.M. (3)
Felter, Stefan, 1970 (3)
Krim, H. (3)
Razavi, Aidin, 1982 (3)
Li, J. (2)
Ottosson Gadd, Tony, ... (2)
Sjöberg, Jonas, 1964 (2)
Zhang, Jun (2)
Yang, Bin, 1982 (2)
Swindlehurst, L. (2)
Athley, Fredrik, 196 ... (2)
Bohlin, Patrik, 1974 (2)
Galletti, M. (2)
Nohlert, Johan, 1987 (2)
Chung, Pei-Jung (2)
Heath Jr., Robert W. (2)
Hashemzadeh, Parham, ... (2)
Pesavento, Marius (2)
Ghaemi, Hirad, 1980 (2)
Boerner, T. (2)
Gekat, F. (2)
Gustafsson, Tony, 19 ... (2)
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University
Chalmers University of Technology (172)
Uppsala University (2)
Royal Institute of Technology (1)
Language
English (172)
Research subject (UKÄ/SCB)
Engineering and Technology (108)
Natural sciences (81)
Medical and Health Sciences (1)

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