Network Search Algorithm for Fast Comeback to Home Network in Roaming Environment


The KIPS Transactions:PartC, Vol. 19, No. 2, pp. 149-152, Apr. 2012
10.3745/KIPSTC.2012.19.2.149,   PDF Download:

Abstract

In the roaming case, the cost of using the visited network is larger than that of home network. So, if a mobile terminal is connected to the visited network, even though it actually came back to the home network, the user may unduly pay for communication. Such a problem frequently occurs when many networks are overlapped in the same region, as shown in the case of Poland. In this paper, we propose a network search algorithm to support the fast comeback to home network in the roaming environment. In the proposed scheme, which is based on the 3GPP specification, the mobile terminal tries to search the home network by using a database of network information, as fast as possible. For performance evaluation, we construct a virtual testbed with real terminal and network equipment to emulate the service providers in Poland. From the experimental results, we can see that the proposed scheme can reduce the time of comeback to the home network by 3~60 minutes, compared the existing 3GPP scheme.


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Cite this article
[IEEE Style]
W. K. Ha and S. J. Koh, "Network Search Algorithm for Fast Comeback to Home Network in Roaming Environment," The KIPS Transactions:PartC, vol. 19, no. 2, pp. 149-152, 2012. DOI: 10.3745/KIPSTC.2012.19.2.149.

[ACM Style]
Won Ki Ha and Seok Joo Koh. 2012. Network Search Algorithm for Fast Comeback to Home Network in Roaming Environment. The KIPS Transactions:PartC, 19, 2, (2012), 149-152. DOI: 10.3745/KIPSTC.2012.19.2.149.