221 search results - page 4 / 45 » Dynamic spectrum access in open spectrum wireless networks |
WCNC
2008
IEEE
14 years 18 hour ago
2008
IEEE
—At present wireless devices are able to select their working frequency only to a limited extend although several measurements have shown that the current spectrum regulations ar...
WICON
2008
13 years 7 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...
VTC
2008
IEEE
14 years 20 hour ago
2008
IEEE
Abstract- This paper considers the centralized spectrum allocations in resource-constrained wireless sensor networks with the following goals: (1) allocate spectrum as fairly as po...
ICC
2009
IEEE
14 years 12 days ago
2009
IEEE
Abstract—Modern frequency-agile radios are capable of dynamically changing the spectrum width and central frequency of its channels. Existing spectrum sharing algorithms often fa...
MOBICOM
2010
ACM
13 years 5 months ago
2010
ACM
Guardbands are designed to insulate transmissions on adjacent frequencies from mutual interference. As more devices in a given area are packed into orthogonal wireless channels, c...