369 search results - page 62 / 74 » A Distributed Opportunistic Access Scheme for OFDMA Systems |
HICSS
2003
IEEE
15 years 2 months ago
2003
IEEE
Digital watermarking is a promising technology to embed copyright information as unperceivable signals in digital contents. Although various watermarking techniques have been empl...
ICDCS
2003
IEEE
15 years 2 months ago
2003
IEEE
In a system proposed by Plaxton, Rajaraman and Richa (PRR), the expected cost of accessing a replicated object was proved to be asymptotically optimal for a static set of nodes an...
TWC
2008
14 years 9 months ago
2008
Ultra-wideband (UWB) communication is envisaged to be deployed in indoor environments, where the noise distribution is decidedly non-Gaussian. A critical challenge for impulse radi...
MSWIM
2005
ACM
15 years 3 months ago
2005
ACM
A number of analytical models have been proposed to describe the priority schemes of the Enhanced Distributed Channel Access (EDCA) mechanism of the IEEE 802.11e standard. EDCA pr...
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ISORC
2005
IEEE
15 years 3 months ago
2005
IEEE
Transcoding is an important technology which adapts the same multimedia object to diverse mobile appliances; thus, users’ requests for a specified version of a multimedia objec...