A seamless service management with context-aware handoff scheme in ubiquitous computing environment

Authors:
Tae-Hoon Kang;Chung-Pyo Hong;Won-Joo Jang;Shin-Dug Kim
Affiliations:
Dept. of Computer Science, Yonsei University, Seoul, Rep. of Korea;Dept. of Computer Science, Yonsei University, Seoul, Rep. of Korea;Dept. of Computer Science, Yonsei University, Seoul, Rep. of Korea;Dept. of Computer Science, Yonsei University, Seoul, Rep. of Korea
Venue:
APNOMS'06 Proceedings of the 9th Asia-Pacific international conference on Network Operations and Management: management of Convergence Networks and Services
Year:
2006

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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.