13 search results - page 2 / 3 » Power control for cooperative dynamic spectrum access networ... |
ICC
2009
IEEE
13 years 3 months ago
2009
IEEE
Abstract--This paper addresses practical implementation issues of resource allocation in OFDMA networks: inaccuracy of channel state information (CSI) available to the resource all...
ITIIS
2010
13 years 3 months ago
2010
In this paper, we propose a cooperative multi-relay scheme for a secondary system to achieve spectrum access along with a primary system. In the primary network, a primary transmi...
INFOCOM
2010
IEEE
13 years 3 months ago
2010
IEEE
—Cognitive Radio Networks (CRNs) have recently emerged as a promising technology to improve spectrum utilization by allowing secondary users to dynamically access idle primary ch...
INFOCOM
2010
IEEE
13 years 3 months ago
2010
IEEE
Abstract—WiMAX with femto cells is a cost-effective nextgeneration broadband wireless communication system. Cognitive Radio (CR) has recently emerged as a promising technology to...
INFOCOM
2010
IEEE
13 years 3 months ago
2010
IEEE
—We venture beyond the “listen-before-talk” strategy that is common in many traditional cognitive radio access schemes. We exploit the bi-directional nature of most primary c...