An Efficient Route Optimization Scheme for Multiple LMAs in PMIPv6 Domain

Won-Kyeong SEO  Kang-Won LEE  Jae-In CHOI  You-Ze CHO  

Publication
IEICE TRANSACTIONS on Communications   Vol.E95-B   No.10   pp.3149-3157
Publication Date: 2012/10/01
Online ISSN: 1745-1345
DOI: 10.1587/transcom.E95.B.3149
Print ISSN: 0916-8516
Type of Manuscript: PAPER
Category: Network
Keyword: 
network-based mobility management scheme,  proxy mobile IPv6,  route optimization,  multiple LMA,  

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Summary: 
PMIPv6 is the IETF standard for a network-based localized mobility management protocol. In PMIPv6, MNs are topologically anchored at an LMA, which forwards all data for registered MNs. However, since all data packets destined for MNs always traverse the MNs' LMA, the end-to-end packet delay is increased. Therefore, this paper proposes an RO scheme in single and multiple LMA environments. For efficient RO possibility detection, an IPv6 RO extension header and initial RO procedure are proposed. Plus, an effective post-handover RO procedure is presented, along with a packet forwarding scheme to avoid the race condition problem during an RO operation. A Performance evaluation confirms that the proposed scheme can significantly reduce the end-to-end delay, signaling overhead, and RO latency when compared with existing RO schemes.