46,245 research outputs found
Mobile Online Gaming via Resource Sharing
Mobile gaming presents a number of main issues which remain open. These are
concerned mainly with connectivity, computational capacities, memory and
battery constraints. In this paper, we discuss the design of a fully
distributed approach for the support of mobile Multiplayer Online Games (MOGs).
In mobile environments, several features might be exploited to enable resource
sharing among multiple devices / game consoles owned by different mobile users.
We show the advantages of trading computing / networking facilities among
mobile players. This operation mode opens a wide number of interesting sharing
scenarios, thus promoting the deployment of novel mobile online games. In
particular, once mobile nodes make their resource available for the community,
it becomes possible to distribute the software modules that compose the game
engine. This allows to distribute the workload for the game advancement
management. We claim that resource sharing is in unison with the idea of ludic
activity that is behind MOGs. Hence, such schemes can be profitably employed in
these contexts.Comment: Proceedings of 3nd ICST/CREATE-NET Workshop on DIstributed SImulation
and Online gaming (DISIO 2012). In conjunction with SIMUTools 2012.
Desenzano, Italy, March 2012. ISBN: 978-1-936968-47-
Availability Analysis of Redundant and Replicated Cloud Services with Bayesian Networks
Due to the growing complexity of modern data centers, failures are not
uncommon any more. Therefore, fault tolerance mechanisms play a vital role in
fulfilling the availability requirements. Multiple availability models have
been proposed to assess compute systems, among which Bayesian network models
have gained popularity in industry and research due to its powerful modeling
formalism. In particular, this work focuses on assessing the availability of
redundant and replicated cloud computing services with Bayesian networks. So
far, research on availability has only focused on modeling either
infrastructure or communication failures in Bayesian networks, but have not
considered both simultaneously. This work addresses practical modeling
challenges of assessing the availability of large-scale redundant and
replicated services with Bayesian networks, including cascading and
common-cause failures from the surrounding infrastructure and communication
network. In order to ease the modeling task, this paper introduces a high-level
modeling formalism to build such a Bayesian network automatically. Performance
evaluations demonstrate the feasibility of the presented Bayesian network
approach to assess the availability of large-scale redundant and replicated
services. This model is not only applicable in the domain of cloud computing it
can also be applied for general cases of local and geo-distributed systems.Comment: 16 pages, 12 figures, journa
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