369 search results - page 47 / 74 » A Distributed Opportunistic Access Scheme for OFDMA Systems |
78
Voted
SAC
2008
ACM
14 years 9 months ago
2008
ACM
In this paper, we focus on an aspect of distributed XQuery processing that involves data exchanges between processor elements. We first address problems of distributed XML query p...
96
Voted
GLOBECOM
2008
IEEE
15 years 4 months ago
2008
IEEE
—In a distributed wireless network, it is possible to employ several relays and mimic a multiple antenna transmission system. In this paper we propose a MAC layer solution that a...
IPPS
2007
IEEE
15 years 3 months ago
2007
IEEE
We address the problem of optimizing the distribution of partially replicated databases over a computer network. Replication is used to increase data availability in the presence ...
80
Voted
GLOBECOM
2009
IEEE
15 years 1 months ago
2009
IEEE
Abstract--Current multibeam satellite systems perform centralized power and carrier allocation assuming a Multi-Frequency Time Division Multiple Access (MF-TDMA) scheme with fixed ...
107
click to vote
TIFS
2008
14 years 9 months ago
2008
We consider the problem of secret key distribution in a sensor network with multiple scattered sensor nodes and a mobile device that can be used to bootstrap the network. Our main...