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TSP
2010
15 years 1 months ago
Quasi-interpolation by means of filter-banks
We consider the problem of approximating a regular function f(t) from its samples, f(nT), taken in a uniform grid. Quasi-interpolation schemes approximate f(t) with a dilated versi...
Gerardo Pérez-Villalón
TSP
2010
15 years 1 months ago
Distributed spectrum sensing for cognitive radio networks by exploiting sparsity
Abstract--A cooperative approach to the sensing task of wireless cognitive radio (CR) networks is introduced based on a basis expansion model of the power spectral density (PSD) ma...
Juan Andrés Bazerque, Georgios B. Giannakis
TSP
2010
15 years 1 months ago
SNR estimation for multilevel constellations using higher-order moments
Abstract--The performance of existing moments-based nondata-aided (NDA) estimators of signal-to-noise ratio (SNR) in digital communication systems substantially degrades with multi...
Marcos Álvarez-Díaz, Roberto L&oacut...
TSP
2010
15 years 1 months ago
Analysis of the Stereophonic LMS/Newton Algorithm and Impact of Signal Nonlinearity on Its Convergence Behavior
The strong cross-correlation that exists between the two input audio channels makes the problem of stereophonic acoustic echo cancellation (AEC) complex and challenging to solve. R...
Harsha I. K. Rao, Behrouz Farhang-Boroujeny
TVLSI
2010
15 years 1 months ago
A Low-Area Multi-Link Interconnect Architecture for GALS Chip Multiprocessors
A new inter-processor communication architecture for chip multiprocessors is proposed which has a low area cost, flexible routing capability, and supports globally asynchronous loc...
Zhiyi Yu, Bevan M. Baas
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