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SOSP '93 Proceedings of the fourteenth ACM symposium on Operating systems principles
An architecture for a secure service discovery service
MobiCom '99 Proceedings of the 5th annual ACM/IEEE international conference on Mobile computing and networking
MobiCom '99 Proceedings of the 5th annual ACM/IEEE international conference on Mobile computing and networking
The design and implementation of an intentional naming system
Proceedings of the seventeenth ACM symposium on Operating systems principles
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ACM Transactions on Computer Systems (TOCS)
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Service Location Protocol: Automatic Discovery of IP Network Services
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CEEMAS '01 Revised Papers from the Second International Workshop of Central and Eastern Europe on Multi-Agent Systems: From Theory to Practice in Multi-Agent Systems
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Pervasive '02 Proceedings of the First International Conference on Pervasive Computing
Service-Oriented Network Sockets
Proceedings of the 1st international conference on Mobile systems, applications and services
Structured decomposition of adaptive applications
Pervasive and Mobile Computing
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The dynamically changing nature of the emerging networked environments warrants a computing model in which resources are dynamically discovered and opportunistically utilized to maintain continuity of service. This paper describes the design and implementation of Lightweight Adaptive Network Sockets (LANS) for accessing services in such a dynamically changing networked environment. A LANS socket takes a high-level description of a service and opportunistically connects to the best provider of the service in the changing environment of the application. LANS builds on the architectural philosophy of Service-oriented Network Sockets (SoNS)[13], in that it integrates a service-oriented abstraction with the operating system socket interface and provides adaptive service access at the end-host session layer. However, our experience with SoNS led to three key improvements for the LANS architecture. 1) The LANS session layer reduces the computation and communication over-head resulting from the SoNS end-to-end architecture. 2) LANS is designed to offer richer semantics for resource selection and allocation to enable better utilization of resources in shared pervasive environments. 3) Applications in LANS can control the opportunistic behavior of the system to avoid perfunctory reconnections. Our experiments show that LANS running on an iPAQ consumes 40% less power, requires less than 1% of the network traffic, and is far less processor hungry than the original version of SoNS --- without compromising performance and offering richer semantics for adaptive service access.