Dynamic tunneling for network-based distributed mobility management coexisting with PMIPv6

Abstract

The world is entering a post-PC era in which more real-time entertainment traffic is delivered to mobile devices than to PCs. The unprecedented expansion of mobile Internet traffic has resulted in the development of distributed mobility management (DMM) at the IETF. In this paper, we introduce a dynamic tunneling scheme for network-based DMM, in which mobility anchors are distributed at an access network level while tunnels for data packets are dynamically configured taking into account of both session and mobility status. We illustrate the proposed scheme's initial attachment and handover procedures step-by-step in an environment where network-based DMM is coexisted with Proxy Mobile IPv6. To justify the effectiveness of the proposed scheme, we develop an analytical cost model that is used to compare the performance of the proposed scheme with existing ones in terms of signaling and packet delivery costs. Our analysis shows that the proposed scheme optimizes packet delivery paths and thus provides a cost reduction during the packet delivery compared to the existing schemes. We also describe possible performance extensions to the proposed scheme.