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http://dx.doi.org/10.6109/jkiice.2008.12.11.1966

Route Optimization Scheme using Routing Protocol in Nested Mobile Networks  

Kim, Eui-Kook ((주)넷비전텔레콤)
Lee, Jong-Hyup (인제대학교 정보통신공학과)
Abstract
NEMO Basic Support Protocol standardized in IETF provides the seamless communication environment to all nodes within the mobile network regardless of the network movement while the network is moving. According to the standard, when the mobile network moves outside of its home network the network can make use of the binding update message or dynamic routing protocol in order to register the mobility information into the Home Agent(HA). But because these two methods don't consider the route optimization, all packets destined to Mobile Network Nodes(MNNs) attached into the Mobile Router(MR) have to go through HAs of MRs so that they bring on the transmission delay and the waste of the bandwidth. This situation is to be worse and causes the packet fragmentation problem if MRs within the mobile network are nested. Even though there have been some researches about the route optimization to recover the problems, they have problems in the packet transmission performance side. In this paper, we propose a new scheme to improve the network performance by using a dynamic routing protocol and minimizing the number of HAs on the end-to-end path. Various performance evaluations show that the proposed mechanism gives better performance in view of the packet transmission compared to the existing schemes.
Keywords
NEMO; Route Optimization; Dynamic Routing Protocol; Mobile Network;
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