369 search results - page 8 / 74 » A Distributed Opportunistic Access Scheme for OFDMA Systems |
TSP
2010
14 years 4 months ago
2010
Spectrum sharing employs dynamic allocation of frequency resources for a more efficient use of the radio spectrum. Despite its appealing features, this technology inevitably compli...
ICASSP
2008
IEEE
15 years 3 months ago
2008
IEEE
—We aim to characterize the maximum link throughput of a multi-channel opportunistic communication system. The states of these channels evolve as independent and identically dist...
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INFOCOM
2011
IEEE
14 years 25 days ago
2011
IEEE
—Cognitive radios (CRs) can mitigate the impending spectrum scarcity problem by utilizing their capability of accessing licensed spectrum bands opportunistically. While most exis...
IPSN
2010
Springer
15 years 4 months ago
2010
Springer
bstract: User-Centric Radio Power Control for Opportunistic Mountain Hiking Networks ∗ Jyh-How Huang1 , Po-Yen Lin1 , Yu-Te Huang2 , Seng-Yong Lau1 , Ling-Jyh Chen2 , Kun-chan La...
JCM
2007
14 years 9 months ago
2007
— Spectrum scarcity is becoming a major issue for service providers interested in either deploying new services or enhancing the capacity for existing applications. On the other ...