49 search results - page 5 / 10 » Cooperative Multi-relay Scheme for Secondary Spectrum Access |
123
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SECON
2007
IEEE
15 years 6 months ago
2007
IEEE
Dynamic spectrum access has become a promising approach to fully utilize the scarce spectrum resources. In a dynamically changing spectrum environment, it is very important to desi...
119
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JSAC
2008
14 years 11 months ago
2008
Abstract--The concept of cognitive radio (or secondary spectrum access) is currently under investigation as a promising paradigm to achieve efficient use of the frequency resource ...
ICNP
2009
IEEE
15 years 6 months ago
2009
IEEE
—Accurate sensing of the spectrum condition is of crucial importance to the mitigation of the spectrum scarcity problem in dynamic spectrum access (DSA) networks. Specifically, ...
120
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INFOCOM
2011
IEEE
14 years 3 months ago
2011
IEEE
Abstract—Secondary spectrum access is emerging as a promising approach for mitigating the spectrum scarcity in wireless networks. Coordinated spectrum access for secondary users ...
ICWN
2003
15 years 1 months ago
2003
— Most wireless systems receive a license that gives them exclusive access to a block of spectrum. Exclusivity guarantees adequate quality of service, but it also leads to inef...