18 search results - page 3 / 4 » Adaptive Power Loading for OFDM-Based Cognitive Radio System... |
CCECE
2009
IEEE
14 years 1 days ago
2009
IEEE
—Spectrum awareness is a crucial first step of a cognitive radio (CR). This provides information necessary for the CR to adapt to the radio frequency environment, and involves re...
ADHOCNOW
2009
Springer
13 years 12 months ago
2009
Springer
Multi-Radio Multi-Channel (MRMC) systems are key to power control problems in WMNs. Previous studies have emphasized throughput maximization in such systems as the main design chal...
TWC
2008
13 years 5 months ago
2008
A resource allocation framework is presented for spectrum underlay in cognitive radio networks. We consider both interference constraints for primary users and quality of service (...
TSP
2010
12 years 12 months ago
2010
Abstract--A cooperative approach to the sensing task of wireless cognitive radio (CR) networks is introduced based on a basis expansion model of the power spectral density (PSD) ma...
GLOBECOM
2009
IEEE
13 years 9 months ago
2009
IEEE
In this paper, cognitive transmission under quality of service (QoS) constraints is studied. In the cognitive radio channel model, it is assumed that the secondary transmitter sen...