A lightweight middleware protocol for ad hoc distributed object computing in ubiquitous computing environments

Sik-Sang Yau, F. Karim

Research output: Chapter in Book/Report/Conference proceedingConference contribution

7 Scopus citations

Abstract

Devices in ubiquitous computing environments are usually embedded, wearable, and handheld, have resource constraints, and are all connected to each other through wireless connections and other computers possibly through fixed network infrastructures, such as the Internet. These devices may form numerous webs of short-range and often low-power mobile ad hoc networks to exchange information. Distributed object computing (DOC) middleware technologies have been successful in promoting high quality and reusable distributed software for enterprise-oriented environments. In order to reap the same benefit in ubiquitous computing environments, it is important to note that the natural interactions among distributed objects in ubiquitous computing environments are quite different due to various factors, such as bandwidth constraints, unpredictable device mobility, network topology change, and context-sensitivity (or situation-awareness) of application objects. Hence, the interactions among distributed objects tend to be more spontaneous and short-lived rather than predictable and long-term. In this paper, a middleware protocol, RKF, to facilitate distributed object-based application software to interact in an ad hoc fashion in ubiquitous computing environments is presented. RKF addresses both spontaneous object discovery and context-sensitive object data exchange. Our experimental results, based on RKF's implementation and evaluation inside the object request broker of our RCSM middleware test bed, indicate that it is lightweight, has good performance, and can be easily used in PDA-like devices.

Original languageEnglish (US)
Title of host publicationProceedings - 6th IEEE International Symposium on Object-Oriented Real-Time Distributed Computing, ISORC 2003
PublisherInstitute of Electrical and Electronics Engineers Inc.
Pages172-179
Number of pages8
ISBN (Print)0769519288, 9780769519289
DOIs
StatePublished - 2003
Event6th IEEE International Symposium on Object-Oriented Real-Time Distributed Computing, ISORC 2003 - Hakodate, Hokkaido, Japan
Duration: May 14 2003May 16 2003

Other

Other6th IEEE International Symposium on Object-Oriented Real-Time Distributed Computing, ISORC 2003
CountryJapan
CityHakodate, Hokkaido
Period5/14/035/16/03

Keywords

  • context-sensitive communications
  • context-sensitivity
  • distributed object computing middleware
  • lightweight middleware protocol
  • mobile ad hoc networks
  • Reconfigurable Context-Sensitive Middleware
  • situation-awareness
  • Ubiquitous computing environments

ASJC Scopus subject areas

  • Hardware and Architecture
  • Software
  • Modeling and Simulation

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