626 search results - page 25 / 126 » Power Control for User Cooperation |
CISS
2008
IEEE
14 years 4 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...
INFOCOM
2002
IEEE
14 years 2 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,...
ICASSP
2008
IEEE
14 years 4 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-...
JSAC
2011
13 years 22 days 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...
ICC
2007
IEEE
14 years 4 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...