43 search results - page 4 / 9 » Optimal and Suboptimal Power Allocation Schemes for OFDM-bas... |
JSAC
2011
13 years 1 months ago
2011
—We consider a wireless cognitive radio network in which a set of secondary users (SUs) opportunistically utilize the wireless spectrum licensed to the primary users (PUs) to tra...
ICASSP
2011
IEEE
12 years 10 months ago
2011
IEEE
Efficient design of cognitive radio networks calls for secondary users implementing adaptive resource allocation, which requires knowledge of the channel state information in ord...
TWC
2008
13 years 6 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 (...
CORR
2007
Springer
13 years 6 months ago
2007
Springer
Abstract— We consider power allocation algorithms for fixedrate transmission over Nakagami-m non-ergodic block-fading channels with perfect transmitter and receiver channel stat...
ICASSP
2011
IEEE
12 years 10 months ago
2011
IEEE
A weighted sum-rate maximization problem is considered for an access point (AP) allocating resources to wireless cognitive radios (CRs) communicating using orthogonal frequency-di...