A self-healing web server using differentiated services
ICSOC'06 Proceedings of the 4th international conference on Service-Oriented Computing
An adaptive reliable qos for resource errors running on ubiquitous computing environments
VSMM'06 Proceedings of the 12th international conference on Interactive Technologies and Sociotechnical Systems
An adaptive fault tolerance system for ubiquitous computing environments: AFTS
ICCSA'06 Proceedings of the 2006 international conference on Computational Science and Its Applications - Volume Part IV
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The provision of novel Internet services has both tospecify and to maintain differentiated Quality-of-Service(QoS) levels. Services should tailor to different user QoSpreferences together with the differentiated quality propertiesderiving from servers and access points and devices,from workstations connected with high-capacitynetworks to wearable devices exploiting limited-capacitywireless links. The paper claims that service provisionwith negotiated and controlled QoS over best-effort networkscalls for a support infrastructure that activates intermediatenodes along the path between clients and servers.In fact, the paper proposes MASQ, an active middlewaresolution for the QoS management of Video-on-Demand(VoD) streaming. At negotiation time, MASQ exploitscode mobility to establish an active path betweenthe requesting client and the VoD server chosen to tailorVoD flows based on user profiles and device properties.At provision time, MASQ dynamically controls the offeredQoS level to adapt locally when and where network resourceavailability changes. MASQ significantly benefitsfrom dynamic and flexible programmability stemmingfrom the employment of high-level policies.