34170 search results - page 622 / 6834 » Optimization |
205
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GLOBECOM
2007
IEEE
16 years 1 months ago
2007
IEEE
— Spectrum sensing is a key enabling functionality in cognitive radio (CR) networks, where the CRs act as secondary users that opportunistically access free frequency bands. Due ...
237
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GLOBECOM
2007
IEEE
16 years 1 months ago
2007
IEEE
Abstract— This paper theoretically analyzes cross-layer optimized design of transmit power allocation in distributed interference-limited wireless networks with asynchronously ac...
209
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HPDC
2007
IEEE
16 years 1 months ago
2007
IEEE
The resource availability in Grids is generally unpredictable due to the autonomous and shared nature of the Grid resources and stochastic nature of the workload resulting in a be...
189
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ICASSP
2007
IEEE
16 years 1 months ago
2007
IEEE
We present a novel search algorithm which is suitable for optimizing functions with a high-dimensional discrete-valued parameter vector. The algorithm is designed to find a funct...
227
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ICC
2007
IEEE
16 years 1 months ago
2007
IEEE
We consider opportunistic spectrum access for secondary users over multiple channels whose occupancy by primary users is modeled as discrete-time Markov processes. Due to hardware...