NDLI: Dynamic QoS-aware multimedia service configuration in ubiquitous computing environments

Content Provider	IEEE Xplore Digital Library
Author	Xiaohui Gu Nahrstedt, K.
Copyright Year	2002
Description	Author affiliation: Dept. of Comput. Sci., Illinois Univ., Urbana, IL, USA (Xiaohui Gu; Nahrstedt, K.)
Abstract	Ubiquitous computing promotes the proliferation of various stationary, embedded and mobile devices interconnected by heterogeneous networks. It leads to a highly dynamic distributed system with many devices and services coming and going frequently. Many emerging distributed multimedia applications are being deployed in such a computing environment. In order to make the experience for a user truly seamless and to provide soft performance guarantees, we must meet the following challenges: (1) users should be able to perform tasks continuously, despite changes of resources, devices and locations; (2) users should be able to efficiently utilize all accessible resources within runtime environments to receive the best possible Quality-of-Service (QoS). In this paper, we propose an integrated QoS-aware service configuration model to address the above problems. The configuration model includes two tiers: (1) service composition tier, which is responsible for choosing and composing current available service components appropriately and coordinating arbitrary interactions between them to achieve the user's objectives; and (2) service distribution tier which is responsible for dividing an application into several partitions and distributing them to different available devices appropriately. Our initial experimental results based on both prototype and simulations show the soundness of our model and algorithms.
Sponsorship	IEEE Comput. Tech. Committee on Distributed Process. (TCDP)
Starting Page	311
Ending Page	318
File Size	405452
Page Count	8
File Format	PDF
ISBN	0769515851
ISSN	10636927
DOI	10.1109/ICDCS.2002.1022268
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2002-07-02
Publisher Place	Austria
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Multimedia computing Ubiquitous computing Pervasive computing Quality of service NASA Distributed computing Runtime environment Contracts Intelligent networks Computer networks
Content Type	Text
Resource Type	Article
Subject	Computer Networks and Communications Hardware and Architecture Software

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1	Ministry of Education (GoI), Department of Higher Education	Sanctioning Authority	https://www.education.gov.in/ict-initiatives
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3	National Digital Library of India Office, Indian Institute of Technology Kharagpur	The administrative and infrastructural headquarters of the project	Dr. B. Sutradhar bsutra@ndl.gov.in
4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
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