193 search results - page 32 / 39 » Dynamic spectrum access policies for cognitive radio |
ICASSP
2008
IEEE
14 years 2 months ago
2008
IEEE
The present paper deals with dynamic resource management based on quantized channel state information (CSI) for multi-carrier cognitive radio networks comprising primary and secon...
INFOCOM
2012
IEEE
11 years 10 months ago
2012
IEEE
Cognitive radio gives users the ability to switch channels and make use of dynamic spectral opportunities. However, switching channels takes time, and may disrupt the quality of a...
TWC
2010
13 years 2 months ago
2010
Abstract--In this paper, we propose a novel spectrum occupancy model designed to generate accurate temporal and frequency behavior of various wireless transmissions. Our proposed w...
GLOBECOM
2007
IEEE
14 years 1 months ago
2007
IEEE
— In this paper we propose Cognitive Medium Access (CMA), a protocol aimed at improving coexistence with a set of independently evolving WLAN bands. A time-slotted physical layer...
MOBIHOC
2012
ACM
11 years 10 months ago
2012
ACM
A key feature of wireless communications is the spatial reuse. However, the spatial aspect is not yet well understood for the purpose of designing efficient spectrum sharing mecha...