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TCOM
2008
81views more  TCOM 2008»
13 years 8 months ago
Optimum Power Allocation for Multiuser OFDM with Arbitrary Signal Constellations
This paper formulates power allocation policies that maximize the region of mutual informations achievable in multiuser downlink OFDM channels. Arbitrary partitioning of the availa...
Angel Lozano, Antonia Maria Tulino, S. Verdii
NETWORKING
2010
13 years 10 months ago
Toward Efficient On-Demand Streaming with BitTorrent
This paper considers the problem of adapting the BitTorrent protocol for on-demand streaming. BitTorrent is a popular peer-to-peer file sharing protocol that efficiently accommodat...
Youmna Borghol, Sebastien Ardon, Niklas Carlsson, ...
DNIS
2010
Springer
240views Database» more  DNIS 2010»
14 years 1 days ago
AccKW: An Efficient Access Control Scheme for Keyword-Based Search over RDBMS
Access control for relational databases is a well researched area. An SQL query is allowed or denied access to database according to the specified access control policy. On the oth...
Vikram Goyal, Ashish Sureka, Sangeeta Lal
CORR
2010
Springer
57views Education» more  CORR 2010»
13 years 8 months ago
A Repeated Game Formulation of Energy-Efficient Decentralized Power Control
Decentralized multiple access channels where each transmitter wants to selfishly maximize his transmission energyefficiency are considered. Transmitters are assumed to choose freel...
Mael Le Treust, Samson Lasaulce
P2P
2007
IEEE
139views Communications» more  P2P 2007»
14 years 3 months ago
A Trust-Based Exchange Framework for Multiple Services in P2P Systems
In this paper we propose fully distributed trustbased policies for p2p systems to regulate the exchange of different type of services and discourage misbehaviour. In a system of p...
Anna Satsiou, Leandros Tassiulas