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In ubiquitous network environment, mobility is supported among various networks. When a user enjoying the media streaming service changes his attachment point, the service need to be provided continuously. In this paper, we propose a mechanism to provide seamless mobility for a user using RFID tag. We build a test bed for user mobility, and confirm that the seamless service can be provided according...
We propose a network-based global mobility mechanism between the IP based access networks. And this mechanism improves the global mobility problem of the existing MIPv6. Moreover, the handover latency time can be reduced through the using label switched path (LSP) of multi protocol label switching (MPLS) setup.
In this paper, we propose an information sharing algorithm to support service mobility in home network for user's convenience. The proposed algorithm creates a text file with information for service request in a personal mobile terminal. The home media terminal supports the service mobility by sharing this information file and re-requesting the service, when it connects to s personal mobile terminal...
We propose a new handover scheme for solving long latency time and triangle routing problems of MIP (mobile IP). The proposed scheme supports L3 mobility using the L2 information of terminal and data tunneling between edge routers. In these characteristics, it has the lower latency time of handover procedure and the lower transmission delay of data packet, than MIP.
This paper proposes adaptive network access mechanism to support multi-interfaced terminal over heterogeneous wireless networks. Mobile devices equipped with multi mode interfaces perform an access request based on information of available access networks with cost function. The proposed cost function adopts the minimum required bandwidth and signal to interference plus noise ratio (SINR). In order...
In this paper, we investigate and compare the performance of MIPv6, IP2 and Q.MMF with respect to the time and cost in the case of location registration. We analyze the performance of each scheme using the metrics and an M/M/1 queueing system. As shown the numerical analysis, the performance in Q.MMF Case 1 is better than that in MIPv6, IP2 and Q.MMF Case 2. In this case, the reason is that the LLM...
In this paper, we propose that mobility agent based handover selection algorithm for handover from fixed network to mobile network. We showed that the proposed handover selection algorithm has lower blocking probability.
A variety of schemes for mobility are currently studied in ITU-T, 3GPP, IETF, and so on. The ITU-T (SG-19) considers Q.MMF, the 3GPP standardized IMS, the IETF currently uses mobile IP (MIP). For supporting mobility, there are many performance parameters, such as location registration delay, handover delay, packet delivery delay, signaling cost, location update cost, packet delivery cost. However...
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