This paper discusses the challenges in computer systems research posed by the emerging field of pervasive computing. It first examines the relationship of this new field to its predecessors: distributed systems and mobile computing. It then identifies four new research thrusts: effective use of smar Abstract - Cited by 22 self - Add to MetaCart This paper discusses the challenges in computer systems research posed by the emerging field of pervasive computing.
It then identifies four new research thrusts: effective use of smart spaces, invisibility, localized scalability, and masking uneven conditioning. The paper closes with a discussion of the research necessary to develop these capabilities. Citation Context Spreitzer , Douglas B. Terry , Marvin M.
Theimer, Alan J. The simplicity of the design makes the protocol ve The simplicity of the design makes the protocol very flexible, thereby providing support for diverse networking environments and usage scenarios. It accommodates a variety of policies for when and where to propagate updates. It operates over diverse network topologies, including low-bandwidth links.
It is incremental. It enables replica convergence, and updates can be propagated using floppy disks and similar transportable media. Moreover, the protocol handles replica creation and retirement in a light-weight manner. This paper presents the antientropy protocol in detail, describing the design decisions and resulting features.
We present the design and implementation of an end-to-end architecture for Internet host mobility using dynamic updates to the Domain Name System DNS to track host location.
Existing TCP connections are retained using secure and efficient connection migration, enabling established connections to s Abstract - Cited by 9 self - Add to MetaCart We present the design and implementation of an end-to-end architecture for Internet host mobility using dynamic updates to the Domain Name System DNS to track host location. Existing TCP connections are retained using secure and efficient connection migration, enabling established connections to seamlessly negotiate a change in endpoint IP addresses without the need for a third party.
Our architecture is securename updates are effected via the secure DNS update protocol, while TCP connection migration uses a novel set of Migrate optionsand provides a pure end-system alternative to routing-based approaches such as Mobile IP. Mobile IP was. Data replication is a key technology in distributed data sharing systems, enabling higher availability and performance.
This paper surveys optimistic replication algorithms that allow replica contents to diverge in the short term, in order to support concurrent work practices and to tolerate failure Second, the danger of viewing stale data or making inconsistent updates grows as objects are replicated across more computers and portable storage devices.
Third, mobile data access performance can suffer due to variable storage access times caused by dynamic power management, mobility, and use of heterogeneous storage devices.
To overcome these barriers, we have built a new distributed file system called BlueFS. View the full text of this paper in PDF. All Rights Reserved. Rights to individual papers remain with the author or the author's employer. Second, the danger of viewing stale data or making inconsistent updates grows as objects are replicated across more computers and portable storage devices.
Third, mobile data access performance can suffer due to variable storage access times caused by dynamic power management, mobility, and use of heterogeneous storage devices. To overcome these barriers, we have built a new distributed file system called BlueFS. Documents: Advanced Search Include Citations. Authors: Advanced Search Include Citations.
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