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CORR
2007
Springer
114views Education» more  CORR 2007»
14 years 12 months ago
Opportunistic Communications in an Orthogonal Multiaccess Relay Channel
— The problem of resource allocation is studied for a two-user fading orthogonal multiaccess relay channel (MARC) where both users (sources) communicate with a destination in the...
Lalitha Sankar, Yingbin Liang, H. Vincent Poor, Na...
ESORICS
2007
Springer
15 years 6 months ago
Obligations and Their Interaction with Programs
Obligations are pervasive in modern systems, often linked to access control decisions. We present a very general model of obligations as objects with state, and discuss its interac...
Daniel J. Dougherty, Kathi Fisler, Shriram Krishna...
CSFW
2007
IEEE
15 years 6 months ago
Do As I SaY! Programmatic Access Control with Explicit Identities
We address the programmatic realization of the access control model of security in distributed systems. Our aim is e the gap between abstract/declarative policies and their concre...
Andrew Cirillo, Radha Jagadeesan, Corin Pitcher, J...
AUTONOMICS
2007
ACM
15 years 3 months ago
End-to-end vs. hop-by-hop transport under intermittent connectivity
This paper revisits the fundamental trade-off between endto-end and hop-by-hop transport control. The end-to-end principle has been one of the building blocks of the Internet; but...
Simon Heimlicher, Merkourios Karaliopoulos, Hanoch...
GLOBECOM
2007
IEEE
15 years 6 months ago
Optimum Power Allocation and Bit Loading for Systems with Suboptimum Receivers
— Waterfilling and mercury/waterfilling power allocation policies maximize the mutual information of independent parallel Gaussian-noise channels under an average power constra...
David Matas, Meritxell Lamarca