490 search results - page 33 / 98 » Changing the Channel |
JCDL
2003
ACM
14 years 1 months ago
2003
ACM
Content-based image retrieval uses features that can be extracted from the images themselves. Using more than one representation of the images in a collection can improve the resu...
PERCOM
2009
ACM
14 years 8 months ago
2009
ACM
Channel asymmetry and high fluctuation of channel conditions are two salient characteristics of wireless channels in mobile environments. Therefore, when using IEEE 802.11 devices ...
GLOBECOM
2007
IEEE
2007
IEEE
Enhanced Adaptive Frequency Hopping for Wireless Personal Area Networks in a Coexistence Environment
14 years 2 months ago
— In this paper, we present an enhanced adaptive frequency hopping (EAFH) mechanism for improving the performance of frequency hopping-based wireless personal area networks (WPAN...
MMS
2008
13 years 7 months ago
2008
Abstract Multimedia applications operating in today's Internet have to employ some form of error resilience to cope with losses. For interactive applications with strict delay...
ICC
2009
IEEE
13 years 5 months ago
2009
IEEE
In this paper, we consider a secondary link sharing the spectrum with a primary link in a fading cognitive radio (CR) network. Instead of applying the conventional interference pow...