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ICASSP
2008
IEEE
16 years 1 months ago
Low-complexity receivers for multiuser detection with an unknown number of active users
In multiuser detection, the set of users active at any time may be unknown to the receiver. A two-step detection procedure, in which multiuser detection is preceded by active-user...
Daniele Angelosante, Ezio Biglieri
ICASSP
2008
IEEE
16 years 1 months ago
Maximum likelihood binary detection in improper complex gaussian noise
In a wide range of communication systems, including DS-CDMA and OFDM systems, the signal-of-interest might be corrupted by an improper [1] (also called non circularly symmetric [2...
Amirhossein S. Aghaei, Konstantinos N. Plataniotis...
ICASSP
2008
IEEE
16 years 1 months ago
Performance characteristics of collaborative beamforming for wireless sensor networks with Gaussian distributed sensor nodes
Collaborative beamforming has been recently introduced in the context of wireless sensor networks (WSNs) to increase the transmission range of individual sensor nodes. In this pap...
Mohammed F. A. Ahmed, Sergiy A. Vorobyov
ICASSP
2008
IEEE
16 years 1 months ago
Average case analysis of sparse recovery with thresholding : New bounds based on average dictionary coherence
This paper analyzes the performance of the simple thresholding algorithm for sparse signal representations. In particular, in order to be more realistic we introduce a new probabi...
Mohammad Golbabaee, Pierre Vandergheynst
ICIP
2008
IEEE
16 years 1 months ago
Regularized depth from defocus
In the area of depth estimation from images an interesting approach has been structure recovery from defocus cue. Towards this end, there have been a number of approaches [4, 6]. ...
Vinay P. Namboodiri, Subhasis Chaudhuri, Sunil Had...