Differentiated service

About: Differentiated service is a research topic. Over the lifetime, 5539 publications have been published within this topic receiving 105225 citations.

A novel location-based service and architecture

Abstract: This paper re-introduces the concept of service provider choice within hierarchical wireless networks of the future. The service provider does not have to be a PCS, cellular, or satellite carrier. The service provider might have agreements with multiple PCS, cellular, or satellite carriers to provide wireless services to its subscribers. The concepts of location billing and third generation networks have been studied in the past, but the concept of enabling users to switch between service providers based on their location is certainly novel. The objective is to present a generic service description of this concept and to propose a basic architecture that may foster future study. This paper is not a feasibility study, although it identifies the issues that may need to be considered to determine the viability of service provider choice based on a subscriber's location.

Servlet-based architecture for dynamic service composition

Abstract: A servlet-based architecture for dynamic service composition in which service configuration information is received through a communication network. A service template file, including service configuration request information, may be sent to a user and a service configuration response, including the service configuration information, may be received from the user through the communication network. Software components are dynamically selected and configured, based on the received service configuration information, to create a software-based service. The software-based service may then be executed on a server to provide the service for the user.

Performance analysis of location-aware mobile service proxies for reducing network cost in personal communication systems

Abstract: We propose and analyze mobile service management schemes based on location-aware proxies with the objective to reduce the network signaling and communication cost in future personal communication systems (PCS). Under these schemes, a mobile user uses personal proxies as intelligent client-side agents to communication with services engaged by the mobile user. A personal proxy cooperates with the underlying location management system so that it is location-aware and can optimally decide when and how often it should move with the roaming user. We show that, when given a set of model parameters characterizing the network and workload conditions, there exists an optimal proxy service area size for service handoffs such that the overall network signaling and communication cost for servicing location and service operations is minimized. We demonstrate via Petri net models that our proposed proxy-based mobile service management schemes outperform non-proxy-based schemes over a wide range of identified conditions. Further, when the mobile user is concurrently engaged in multiple services, the per-service proxy scheme that uses a separate proxy for each service outperforms the aggregate proxy scheme that uses a single proxy to interface with multiple services taking their aggregate service characteristics into consideration.

Methods and apparatus for interactive specification of context-sensitive service level agreements; for provisioning of resources required during service delivery events regulated by service level agreements; and for monitoring compliance with service Level agreements during service delivery events

Abstract: In a first aspect of the present invention, methods and apparatus implement graphical user interfaces for interactively specifying service level agreements used to regulate delivery of services to, for example, computer systems. An interactive graphical user interface allows a user to see the effects of varying values of service delivery variables on the level of service achievable in a particular service delivery context. In a second aspect, methods and apparatus of the present invention provision resources required for service delivery. In the second aspect, the methods and apparatus of the present invention select a service delivery model dependent on context. The selected service delivery model is used to provision resources that will be required during service delivery. In a third aspect, methods and apparatus of the present invention monitor compliance with a service level agreement during a service delivery event. In instances where a given service delivery does not comply with service level attributes specified in a controlling service level agreement, the methods and apparatus of the present invention take corrective action.