5752 search results - page 491 / 1151 » Informative Labeling Schemes |
169
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RSKT
2009
Springer
16 years 2 months ago
2009
Springer
—Cyclic Delay Diversity (CDD) is a simple and efficient space-time diversity technique. It can be used in OFDM and DFT-Spread-OFDM. The traditional CDD has low complexity and sys...
207
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CISS
2008
IEEE
16 years 1 months ago
2008
IEEE
Abstract— A cross-layer optimization combining retransmission diversity with multi-user diversity is investigated for wireless communications. To this end, a joint design of adap...
244
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CISS
2008
IEEE
16 years 1 months ago
2008
IEEE
—We propose a new scheme for limited feedback in MIMO systems. We consider transmit beamforming and receiver maximal ratio combining as a base for our work, and propose a novel b...
199
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CISS
2008
IEEE
16 years 1 months ago
2008
IEEE
— Multiple-input multiple-output (MIMO) techniques allow for multiplexing and/or diversity gain, and will be widely deployed in future wireless systems. In this paper, we propose...
197
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ICDE
2007
IEEE
16 years 1 months ago
2007
IEEE
In a secure mediated information system, confidentiality is one of the main concerns when transmitting data from datasources to clients via a mediator. We present three approache...