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A Seamless Service Management with Context-Aware Handoff Scheme in Ubiquitous Computing Environment

  • Tae-Hoon Kang
  • Chung-Pyo Hong
  • Won-Joo Jang
  • Shin-Dug Kim
Part of the Lecture Notes in Computer Science book series (LNCS, volume 4238)

Abstract

Despite the importance of seamless connectivity in ubiquitous computing, research for seamless connectivity has not been considered properly. To provide seamless connectivity, this paper proposes an application execution model for seamless services with an intelligent context-aware handoff scheme based on context information, such as user intentions and application requirements as well as issues of network layer. In this paper, we define several profiles reflecting various context informations and design basic modules organizing middleware architecture for seamless service management and efficient vertical handoff (VHO) management. Consequently, the proposed seamless service management with context-aware handoff scheme provides service continuity in ubiquitous computing environment by preventing unnecessary handoffs, changing application service modes adaptively, and eventually maintaining optimal network configuration. And also simulation results show about 38% enhanced performance in the processing rate, about 13% enhanced performance from service continuity, and about 29% enhanced performance in the processing time, compared with conventional schemes.

Keywords

Ubiquitous Computing Packet Error Rate Service Mode Application Agent Ubiquitous Computing Environment 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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References

  1. 1.
    Weiser, M.: The computer for the 21st century. Scientific American 265(3), 94–104 (1991)CrossRefGoogle Scholar
  2. 2.
    Ranganathan, A., Campbell, R.H.: An infrastructure for context-awareness based on first order logic. Personal Ubiquitous Computing 7(6), 353–364 (2003)CrossRefGoogle Scholar
  3. 3.
    Sousa, J., Garlan, D.: Aura: an architectural framework for user mobility in ubiquitous computing environments. In: Proceedings of the 3rd Working IEEE/IFIP Conference on Software Architecture, pp. 29–43 (August 2002)Google Scholar
  4. 4.
    Dey, A.K., Salber, D., Abowd, G.D.: A conceptual framework and a toolkit for supporting the rapid prototyping of context-aware applications. Human-Computer Interaction (HCI) Journal 16(2-4), 97–166 (2001)CrossRefGoogle Scholar
  5. 5.
    Wang, X., Dong, J.S., Chin, C.Y., Hettiarachchi, S.R., Zhang, D.: Semantic Space: an infrastructure for smart spaces. IEEE Pervasive Computing 3(3), 32–39 (2004)CrossRefGoogle Scholar
  6. 6.
    Lu, S.W., Lee, K.W., Bharghavan, V.: Adaptive Quality of Service Support for Packet-Switched Wireless Cellular Networks. Multimedia Tools and Applications 17(2-3), 157–179 (2002)CrossRefGoogle Scholar
  7. 7.
    Ruiz, P.M., Botia, J.A., Gomez-Skarmeta, A.: Providing QoS through machine-learning-driven adaptive multimedia applications. IEEE Transactions on Systems, Man and Cybernetics, Part B 34(3), 1398–1411 (2004)CrossRefGoogle Scholar
  8. 8.
    Chen, W.T., Shu, Y.Y.: Active Application Oriented Vertical Handoff in next-Generation Wireless Networks. In: IEEE Wireless and Communications and Networking Conference 2005, vol. 3(13-17), pp. 1383–1388 (March 2005)Google Scholar
  9. 9.
    Inoue, M., Mahmud, K., Murakami, H., Hasegawa, M., Morikawa, H.: Context-Based Network and Application Management on Seamless Networking Platform. Wireless Personal Communications 35(1-2), 53–70 (2005)CrossRefGoogle Scholar
  10. 10.
    Telecommunications Technology Association (TTA), http://www.tta.or.kr/
  11. 11.
    GSM World, GPRS-Standard class 10, http://www.gsmworld.com/
  12. 12.
    Media Independent Handover (MIH) Working Group, http://www.ieee802.org/21/

Copyright information

© Springer-Verlag Berlin Heidelberg 2006

Authors and Affiliations

  • Tae-Hoon Kang
    • 1
  • Chung-Pyo Hong
    • 1
  • Won-Joo Jang
    • 1
  • Shin-Dug Kim
    • 1
  1. 1.Dept. of Computer ScienceYonsei UniversitySeoulRep. of Korea

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