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ICASSP
2008
IEEE
16 years 25 days ago
A factor graph approach to joint iterative data detection and channel estimation in pilot-assisted IDMA transmissions
We consider a pilot-assisted interleave-division multiple access (IDMA) system transmitting over block-fading channels. We describe this system in terms of a factor graph and use ...
Clemens Novak, Gerald Matz, Franz Hlawatsch
SNPD
2003
15 years 7 months ago
Incomplete Information Processing for Optimization of Distributed Applications
This paper focuses on non-strict processing, optimization, and partial evaluation of MPI programs which use incremental data structures (ISs). We describe the design and implement...
Alfredo Cristóbal-Salas, Andrei Tchernykh, ...
COMCOM
2008
104views more  COMCOM 2008»
15 years 6 months ago
A network-assisted mobile VPN for securing users data in UMTS
This paper proposes a network-assisted mobile Virtual Private Network (mVPN) security scheme that provides secure remote access to corporate resources over the Universal Mobile Te...
Christos Xenakis, Christoforos Ntantogian, Ioannis...
GRID
2008
Springer
15 years 6 months ago
Replica Placement Strategies in Data Grid
Replication is a technique used in Data Grid environments that helps to reduce access latency and network bandwidth utilization. Replication also increases data availability thereb...
Rashedur M. Rahman, Ken Barker, Reda Alhajj
MOBIHOC
2009
ACM
16 years 1 months ago
Revenue generation for truthful spectrum auction in dynamic spectrum access
Spectrum is a critical yet scarce resource and it has been shown that dynamic spectrum access can significantly improve spectrum utilization. To achieve this, it is important to ...
Juncheng Jia, Qian Zhang, Qin Zhang, Mingyan Liu