156 search results - page 18 / 32 » Opportunistic Spectrum Access for Energy-Constrained Cogniti... |
81
Voted
CISS
2008
IEEE
15 years 4 months ago
2008
IEEE
Cognitive radio is a desirable technique for secondary users to utilize the spectrum gray space. In order to avoid intolerable interference to primary users, the transmission powe...
74
Voted
ICASSP
2010
IEEE
14 years 9 months ago
2010
IEEE
One of the key problems in cognitive radio (CR) is the detection of primary activity in order to determine which parts of the spectrum are available for opportunistic access. This...
GLOBECOM
2009
IEEE
15 years 4 months ago
2009
IEEE
— We propose and analyze a novel decentralized mechanism that motivates otherwise non-cooperative stations to participate as relays in cooperative ARQ protocol. Cooperation incen...
85
Voted
PIMRC
2010
IEEE
14 years 7 months ago
2010
IEEE
This paper proposes the utilization of GSM logical channels (RACH, AGCH and TCH) and UMTS signaling (MIB and SIBs) of the Broadcast Channel to transmit a Cognitive Beacon Channel (...
INFOCOM
2010
IEEE
14 years 8 months ago
2010
IEEE
We study the problem of finding the least-priced path (LPP) between a source and a destination in opportunistic spectrum access (OSA) networks. This problem is motivated by econo...