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ICASSP
2009
IEEE
15 years 4 months ago
Distributed parameter estimation with selective cooperation
This paper proposes selective update and cooperation strategies for parameter estimation in distributed adaptive sensor networks. A setmembership filtering approach is employed t...
Stefan Werner, Yih-Fang Huang, Marcello L. R. de C...
ICASSP
2009
IEEE
15 years 4 months ago
Factor graph based design of an OFDM-IDMA receiver performing joint data detection, channel estimation, and channel length selec
We present a factor graph based design of a receiver for pilotassisted OFDM-IDMA systems transmitting over frequency-selective channels. The receiver performs joint iterative mult...
Clemens Novak, Gerald Matz, Franz Hlawatsch
ICASSP
2009
IEEE
15 years 4 months ago
Compressive spectral estimation for nonstationary random processes
We propose a “compressive” estimator of the Wigner-Ville spectrum (WVS) for time-frequency sparse, underspread, nonstationary random processes. A novel WVS estimator involving...
Alexander Jung, Georg Tauböck, Franz Hlawatsc...
ICASSP
2008
IEEE
15 years 4 months ago
Constrained nonlinear minimum mse estimation
We address the problem of minimum mean-squared error (MMSE) estimation where the estimator is constrained to belong to a prede ned set of functions. We derive a simple closed form...
Tomer Michaeli, Yonina C. Eldar
ICPR
2008
IEEE
15 years 4 months ago
Analytical method for MGRF Potts model parameter estimation
This paper proposes a new analytical method for estimating parameters of a homogeneous isotropic Potts model with an asymmetric Gibbs potential function. The model is generalized ...
Asem M. Ali, Aly A. Farag, Georgy L. Gimel'farb