156 search results - page 20 / 32 » Opportunistic Spectrum Access for Energy-Constrained Cogniti... |
WICON
2008
14 years 11 months ago
2008
Demand-driven spectrum allocation can drastically improve performance for WiFi access points struggling under increasing user demands. While their frequency agility makes cognitive...
87
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TMC
2011
14 years 4 months ago
2011
We consider the problem of optimal channel access to provide quality of service (QoS) for data transmission in cognitive vehicular networks. In such a network the vehicular nodes ...
ICC
2008
IEEE
15 years 4 months ago
2008
IEEE
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 resour...
GLOBECOM
2007
IEEE
15 years 4 months ago
2007
IEEE
In this paper we present the design process of an orthogonal frequency division multiplexing (OFDM) implementation for the Kansas University Agile Radio (KUAR). The KUAR is a porta...
121
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JSAC
2011
14 years 4 months ago
2011
Abstract—In decentralized cognitive radio (CR) networks, enabling the radios to establish a control channel (i.e., “rendezvous” to establish a link) is a challenging problem....