| Summary: | 碩士 === 國立成功大學 === 資訊工程學系碩博士班 === 91 === Mobile IP proposed by IETF is a standard protocol to support global mobility in IP-based networks. When the mobile hosts change its point of attachment to the Internet, it registers to its home agent with the current care-of address. The registration process causes extra signaling traffic between home agent and foreign agent. For the highly moving hosts and far away from home, the signaling traffic is a significant overhead. Mobile IP regional registration is proposed to reduce the number of signaling messages to the home network, thus it can reduce the transmission cost of registration messages. The number of registrations can be effectively decreased if the regional network domain is configured according to the mobility behavior of individual mobile host. Unfortunately, in basic Mobile IP regional registration scheme, the regional network domain is pre-configured for all mobile hosts. It can’t be adapted to the mobility behavior of all mobile hosts.
In this thesis, we propose a domain-based registration scheme for individual mobile host based on its mobility behavior. It configures the optimal regional networks called personalized domain adaptively for the mobility behavior of each mobile host. It can effectively decrease the overall signaling cost incurred by registration process (including home registration cost and regional registration cost). Moreover, we proposed a dynamic distance-based scheme to deal with the non-regular movement of mobile hosts.
In the simulation, we simulate a mobile host with regular mobility behavior, and compare the average signaling cost and average handoff delay in three schemes (including basic Mobile IP regional registration scheme and static distance-based scheme). The results show that our scheme outperforms the other schemes even if there are some degrees of random movement of the mobile host.
|
|---|
