626 search results - page 25 / 126 » Power Control for User Cooperation |
129
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CISS
2008
IEEE
15 years 8 months ago
2008
IEEE
— In this paper, we investigate resource allocation for a multi-user OFDMA cooperative system. Aiming at minimizing the total transmission power under target rate constraints for...
133
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INFOCOM
2002
IEEE
15 years 6 months ago
2002
IEEE
—In this paper, we introduce a cross-layer design framework to the multiple access problem in contention-based wireless ad hoc networks. The motivation for this study is twofold,...
128
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ICASSP
2008
IEEE
15 years 8 months ago
2008
IEEE
Transmit-power control is a critical task in cognitive radio (CR) networks. In the present contribution, adherence to hierarchies between primary and secondary users in a peer-to-...
147
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JSAC
2011
14 years 4 months ago
2011
—In this paper, we propose a spectrum allocation framework that jointly considers the Quality-of-Service (QoS) provisioning for heterogeneous secondary Real-Time (RT) and Non-Rea...
130
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ICC
2007
IEEE
15 years 8 months ago
2007
IEEE
Abstract— We propose the QoS-driven opportunistic cooperation schemes for the wireless relay networks. By integrating information theory with the concept of effective capacity, o...