ICASSP
2008
IEEE
14 years 6 months ago
2008
IEEE
This paper deals with the joint estimation of temporal (timedelay, Doppler frequency) and spatial (direction-of-arrival, DOA) parameters of several replicas of a known signal in a...
ICASSP
2008
IEEE
14 years 6 months ago
2008
IEEE
Semidefinite relaxation (SDR) is a high-performance efficient approach to MIMO detection especially for the BPSK or QPSK constellations. Recently, a number of research endeavors...
ICASSP
2008
IEEE
14 years 6 months ago
2008
IEEE
Adaptive modulation scheme has been widely used in multipleinput multiple-output (MIMO) systems to enhance spectral efficiency while maintaining bit-error rate (BER) under a targ...
ICASSP
2008
IEEE
14 years 6 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...
ICASSP
2008
IEEE
14 years 6 months ago
2008
IEEE
Several classification scenarios employ multiple independently trained classifiers and the outputs of these classifiers need to be combined. However, since each of the trained ...
ICASSP
2008
IEEE
14 years 6 months ago
2008
IEEE
In this paper, a new approach for decoding real-field codes based on finding sparse solutions of underdetermined linear systems is proposed. This algorithm iteratively estimates...
ICASSP
2008
IEEE
14 years 6 months ago
2008
IEEE
The performance of multiuser detection (MUD) algorithms for codedivision multiple-access (CDMA) systems depends on the accuracy of channel estimates. Such estimates are typically ...
ICASSP
2008
IEEE
14 years 6 months ago
2008
IEEE
In this paper, we propose a method for robust kernel density estimation. We interpret a KDE with Gaussian kernel as the inner product between a mapped test point and the centroid ...
ICASSP
2008
IEEE
14 years 6 months ago
2008
IEEE
—We consider power control in spectrum overlay networks (also referred to as opportunistic spectrum access) where secondary users identify and exploit instantaneous and local spe...
ICASSP
2008
IEEE
14 years 6 months ago
2008
IEEE
Classical sampling records the signal level at pre-determined time instances, usually uniformly spaced. An alternative implicit sampling model is to record the timing of pre-deter...