369 search results - page 36 / 74 » A Distributed Opportunistic Access Scheme for OFDMA Systems |
119
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JSAC
2011
14 years 6 months ago
2011
—Opportunistic spectrum access creates the opening of under-utilized portions of the licensed spectrum for reuse, provided that the transmissions of secondary radios do not cause...
CCGRID
2006
IEEE
15 years 5 months ago
2006
IEEE
Abstract— An efficient, accurate and distributed metadataoriented prefetching scheme is critical to the overall performance in large distributed storage systems. In this paper, ...
110
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INFOCOM
2012
IEEE
13 years 2 months ago
2012
IEEE
—We study the capacity and delay scaling laws for cognitive radio network (CRN) with static primary users and heterogeneous mobile secondary users coexisting in the unit planar a...
124
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IMC
2009
ACM
15 years 6 months ago
2009
ACM
WLAN devices based on CSMA/CA access schemes have become a fundamental component of network deployments. In such wireless scenarios, traditional networking applications, tools, an...
94
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ICNP
2003
IEEE
15 years 5 months ago
2003
IEEE
We propose and evaluate a mobile, peer-to-peer Information Retrieval system. Such a system can, for example, support medical care in a disaster by allowing access to a large colle...