A Context-aware Handoff Management for Seamless Connectivity in Ubiquitous Computing Environment

Despite the importance of seamless connectivity in ubiquitous computing, research for seamless connectivity is not considered properly. To provide seamless connectivity, this paper proposes intelligent contextaware handoff management scheme and middleware architecture. In this paper, we defined our own profiles about various contexts like user intentions as well as issues of network layer and designed modules for efficient vertical handoff (VHO) management and continuous service. Consequently, proposed context-aware handoff management scheme prevents unnecessary handoff cases and eventually maintains optimal network configuration in ubiquitous computing environment. And also simulation results show about 40% enhanced performance in the number of VHOs and about 20% enhanced performance in throughput compared with conventional schemes. Keyword: seamless connectivity, vertical handoff, context-aware, profile, and ubiquitous computing.

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