24451 search results - page 4600 / 4891 » Research methods in information |
169
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ADHOC
2004
15 years 6 months ago
2004
Position and orientation information of individual nodes in ad hoc networks is useful for both service and application implementation. Services that can be enabled by availability...
205
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AICOM
2004
15 years 6 months ago
2004
Abstract. We address the problem of answering queries using expressive symmetric inter-schema constraints which allow to establish mappings between several heterogeneous informatio...
160
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TSP
2008
15 years 6 months ago
2008
We consider two automatic repeat request (ARQ) schemes based on subcarrier assignment in orthogonal frequency-division multiplexing (OFDM)-based systems: single ARQ subcarrier assi...
190
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TWC
2008
15 years 6 months ago
2008
We combine space-time coding and transmit beamforming over multiple-antenna quasi-static fading channels using resolution-constrained channel state information at the transmitter ...
172
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TWC
2008
15 years 6 months ago
2008
We consider resource allocation for elastic wireless applications that measure utility by target connection average throughput and achieved throughput. We construct a framework for...