On Multicast-Based Binding Update Scheme for NEMO Environments
Moonseong Kim
Radha, H.
Hyunseung Choo
Electr. & Comput. Eng., Michigan State Univ., East Lansing, MI;
Abstract
NEMO basic support (NBS) protocol ensures session continuity for all the nodes in a mobile network, however, there exists a serious pinball routing problem. To overcome this one, there are many route optimization (RO) solutions such as bi-directional tunneling (BT) mechanism, aggregation and surrogate (A&S) mechanism, recursive Approach, etc. The A&S RO mechanism is known to outperform the other RO mechanisms, except for the binding update (BU) cost. Although improved prefix delegation (IPD) reduces the cost problem of Prefix Delegation (PD), a well-known A&S protocol, the BU cost problem still presents. In this paper, a solution to reduce the cost is proposed using a multicast mechanism instead of unicasting such as the traditional BU of the RO. The performance of the proposed multicast-based BU scheme is examined with an analytical model which shows that the BU cost enhancement is up to about 32% over IPD-based, hence, it is feasible to predict that the proposed scheme could benefit in other NEMO RO protocols.
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