1 RAMP: Reconfigurable Architecture and Mobility Platform Presenter: Shao-Hsiu Hung Date: 5th.Dec.2005

2 Outline Motivations Reconfigurable Architecture and Mobility Platform Testbed implementation and experiment results Summary and future work

3 Motivations The existence of many incompatible wireless systems will last in the near future IP mobility protocols, 3GPP, 3GPP2 IP-based but not compatible How to achieve universal roaming is a big challenge A universal common core network Reconfigurable core network  Reconfigurable mobility management – RAMP

4 Review of IP Mobility Management Macro-mobility Mobile IP (MIP) Micro-mobility Tunnel-based  Hierarchy Mobile IP (HMIP) Host-specific-route-based  HAWAII  Fast Link Layer Inter-domain Handoff (FLIH) – cross-layer design, distributed location tracking with broadcast-based strategy

5 Generic IP Mobility Architecture

6 Main Requirements of RAMP With RAMP, both the network and the mobile node can choose their most desirable mobility management protocol The mobile node can change its mobility protocol at anytime Standard IP protocol and IP routing should not be changed RAMP-unaware network nodes should continue to work with original IP protocols Mobile nodes in the same domain can use different mobility management protocols

7 RAMP Architecture Components Mobile Node (MN) – collocated with mobile host Network Node (NN) – collocated with each router Messages RAMP Header + Supported Mobility Protocols + Advertisement RAMP Header + Original Mobility Management Messages RAMP Header

8 Relation between RAMP and IP Protocol Stack

9 NN Architecture

10 MN Architecture

11 Processing Flow (MN)

12 Processing Flow (NN)

13 Testbed Architecture

14 Experiment 1: Reconfiguration

15 Experiment 2: Co-existence MN1 (using HAWAII) MN2 (using FLIH) MN2MN1

16 Summary RAMP is a first step toward a reconfigurable core network to support the universal roaming RAMP architecture achieves re-configurability for various mobility management protocols RAMP architecture is realized without changing standard IP protocols and applications RAMP-unaware nodes are not affected A new direction for the integration of heterogeneous wireless networks

17 Future Work Security, QoS and other potential issues Reconfigurable core network Integration with cellular systems

18 Publication Jyh-Cheng Chen, Jui-Hung Yeh, Yi-Wen Lan, Li-Wei Lin, Fu-Cheng Chen, Shao-Hsiu Hung, “RAMP: Reconfigurable Architecture and Mobility Platform”, in Proc. of GLOBECOM 2005, St. Louis, USA, 2005