1773 search results - page 258 / 355 » High-level power estimation |
131
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TSP
2010
14 years 10 months ago
2010
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...
148
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TSP
2010
14 years 10 months ago
2010
Spectrum sharing employs dynamic allocation of frequency resources for a more efficient use of the radio spectrum. Despite its appealing features, this technology inevitably compli...
143
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TWC
2010
14 years 10 months ago
2010
In this paper, the training sequence design for multiple-input multiple-output (MIMO) orthogonal frequencydivision multiplexing (OFDM) systems under the minimum mean square error (...
110
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TWC
2010
14 years 10 months ago
2010
Abstract--Frame detection and timing acquisition are challenging tasks in orthogonal frequency-division multiplexing systems plagued by narrowband interference (NBI). Most existing...
116
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ICASSP
2011
IEEE
14 years 7 months ago
2011
IEEE
In this paper, we present a new approach to enhance noisy speech based on an environmental model incorporating the phase between noise and clean speech (often called phasesensitiv...