173 search results - page 1 / 35 » An Alternating Minimization Method for Sparse Channel Estima... |
ICA
2010
Springer
13 years 5 months ago
2010
Springer
The problem of estimating a sparse channel, i.e. a channel with a few non-zero taps, appears in many fields of communication including acoustic underwater or wireless transmissions...
ICASSP
2008
IEEE
13 years 11 months ago
2008
IEEE
We examine the application of current research in sparse signal recovery to the problem of channel estimation. Specifically, using an Orthogonal Frequency Division Multiplexed (O...
CORR
2010
Springer
13 years 5 months ago
2010
Springer
We examine the use of a structured thresholding algorithm for sparse underwater channel estimation using compressed sensing. This method shows some improvements over standard algo...
TSP
2010
12 years 12 months ago
2010
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...
MOR
2010
13 years 3 months ago
2010
We study the convergence properties of an alternating proximal minimization algorithm for nonconvex structured functions of the type: L(x, y) = f(x)+Q(x, y)+g(y), where f : Rn → ...