6 search results - page 1 / 2 » Leveraging Cognitive Radios for Effective Communications ove... |
SECON
2010
IEEE
13 years 2 months ago
2010
IEEE
Wireless communications over water may suffer from serious multipath fading due to strong specular reflections from conducting water surfaces. Cognitive radios enable dynamic spect...
GLOBECOM
2007
IEEE
13 years 8 months ago
2007
IEEE
In this contribution1 , we investigate the idea of using cognitive radio to reuse locally unused spectrum to increase the total system capacity. We consider a multiband/wideband sy...
INFOCOM
2010
IEEE
13 years 2 months ago
2010
IEEE
Recently, a cooperative paradigm for single-channel cognitive radio networks has been advocated, where primary users can leverage secondary users to relay their traffic. However, i...
INFOCOM
2012
IEEE
11 years 6 months ago
2012
IEEE
Cognitive radio (CR) techniques improve the spectrum utilization by exploiting temporarily-free frequency bands (i.e., in the time domain). The spectrum utilization can be boosted...
INFOCOM
2012
IEEE
11 years 6 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...