• Journal of KIISE:Information Networking
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• v.32 no.1
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• pp.29-33
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• 2005

It is not future story that host mobility in wireless network. We already have many devices which can access network among moving our locations. Internet protocol is extended to support not only host mobility but also network mobility. But nesting mobile networks and mobile hosts, there is a problem that routing path of packet becomes complex. By sequential tunneling on outgoing packet at mobile router and toward mobile network at correspondent node, it can be setting up direct path in nested mobile network environment. In this paper, we propose a method for delivering packet through optimized path by sequential tunneling. And evaluate this method by equations and simulations.

• Journal of KIISE:Information Networking
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• v.36 no.4
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• pp.309-321
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• 2009

Nowadays, requests of connecting to the Internet while moving are increasing more and more, and various technologies have been developed for satisfying those requests. The IETF nemo WG standardized "Network Mobility Basic Support Protocol" for supporting mobile network through extending existing MIPv6 protocol for supporting host mobility. But, mobile networks can be nested while they are changing their location. And if they are multi -level nested, that causes some problems because of protocol characteristic. In this paper, we try to solve the problem that is complicated routing path caused by multi-level nesting of mobile networks with our limited prefix delegation method. We give a little modification to the standard protocol and add some functions to mobile router. With results from analysis, we could say that our method has better performance than other proposed methods.

• The Journal of the Convergence on Culture Technology
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• v.8 no.3
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• pp.305-311
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• 2022

In this study, we wanted to apply the creative problem-solving theory of TRIZ to explore the possibilities of applying it in fashion design as well, and to develop a creative bag design so that one product design can be transformed into a form for another purpose. Through TRIZ's 4 invention principles, Local Quality No. 3, Universality No. 6, Nesting No. 7, and Another dimension No. 17, the solution was derived and applied, and the final design was developed, and it was found to satisfy the functionality and usability of 2 types of bag form and apron shape. Accordingly, it was confirmed that TRIZ as an invention principle technique can be fully utilized in fashion design. It is hoped that it will increase the possibility of developing a converged design in the future and be used as a basic example material for designing products that are highly utilized in everyday life.