169 search results - page 23 / 34 » Opportunistic spectrum access for mobile cognitive radios |
MOBICOM
2009
ACM
14 years 2 months ago
2009
ACM
Cognitive relays form a special cooperation relationship among users in cognitive radio networks, and help increase the transmission rates of both primary users and secondary user...
CISS
2008
IEEE
14 years 2 months ago
2008
IEEE
Abstract— According to the cognitive radio paradigm, a terminal or subsystem will opportunistically select a frequency band for data transmission. Because the spectrum is shared,...
INFOCOM
2009
IEEE
14 years 2 months ago
2009
IEEE
—Dynamic spectrum access has been proposed as a means to share scarce radio resources, and requires devices to follow protocols that use resources in a proper, disciplined manner...
VTC
2010
IEEE
13 years 6 months ago
2010
IEEE
—The IEEE 1609.4 standard has been proposed to provide multi-channel operations in wireless access for vehicular environments (WAVE), where all the channels are periodically sync...
WOWMOM
2005
ACM
14 years 1 months ago
2005
ACM
Recent advances in Software Defined Radio (SDR), wide band spectrum sensing, and environment aware real-time spectrum allocation [13, 10, 4] show promise of enabling the new para...