1

Outline

General Description

Breakthroughs and Major Achievements

Categorized Summary

A Summary of the Post-Project Plan

International Cooperation Activities

2

General Description

1

sR AMP MN architecture

• F igure of sR AMP MN

3

General Description

T rust relations of the sR AMP architecture

4

General Description

Wire1X

– A supplicant of 802.1x

– Support a lot of EAP authentication types

General Description

Fast WiMAX handoff by

using SIP mobility

– Cross-layer design to reduce

handoff delay

– Using SIP mobility to

enhance multimedia

applications

5

6

Breakthroughs and Major Achievements

Technology State-of-the-Art Breakthrough

RAMP A Reconfigurable

Architecture and

Mobility Platform

We have proposed an

architecture to accommodate,

control, and coordinate various

types of mobility management

protocols. Both analytical model

and simulation have been

developed to analyze the

architecture

sRAMP Deploy security

mechanisms into

RAMP

RAMP provides mobility

management choices. We have

implement the security mechanisms

into RAMP to make the RAMP

system more secure.

Core Networks

7

Breakthroughs and Major Achievements

Technology State-of-the-Art Breakthrough

Wire1X A supplicant of

802.1X.

802.1X has been used in wireless

authentication protocols. Wire1X

provide various authentication types

and several encryption algorithms.

Fast SIP mobility in

WiMAX environment

A cross-layer design for

fast SIP mobility in WiMAX

environment

Our work design is to reduce the

handoff latency in WiMAX

environment. In order to enhance

multimedia applications, we

choosing SIP mobility as mobility

management.

Core Networks

8

Breakthroughs and Major Achievements

Core Networks

Reconfigurable Architecture and Mobility Platform

(100%, Chen)

Security mechanisms into RAMP (100%, Chen)

Wire1X (80%, Chen)

Fast SIP mobility in WiMAX environment (100%,

Chen)

9

Categorized Summary

Journal papers : (2006/4/1 ~ 2007/03/31)1. J.-C. Chen, Y.-W. Liu, and L.-W. Lin, “Mobile virtual private networks with dynamic MIP home agent assignment,”

Wireless Communications and Mobile Computing (Wiley), vol. 6, no. 5, pp. 601-616, August 2006. (SCI, EI)

2. J.-C. Chen, V. Sarangan, A. McAuley, S. Baba, Y. Ohba, and Z.-H. Liu, “Design and implementation of dynamic

service negotiation protocol (DSNP),” Computer Communications (Elsevier), vol. 29, no. 16, pp. 3250-3264,

October 2006. (SCI, EI)

3. J.-C. Chen and W.-M. Chen, “Design and analysis of a mobility gateway for GPRS-WLAN integration,” IEEE

Transactions on Vehicular Technology, 2006.( to appear) (SCI, EI)

4. P. Agrawal, J.-H. Yeh, J.-C. Chen, and T. Zhang, “Scalability of the IP Multimedia Subsystems (IMS) in 3GPP and

3GPP2,” IEEE Communications Magazine, 2007, accepted with minor revisions. (SCI, EI)

5. C.-K. Chen, C.-W. Chen, C.-T. Ko, J.-K. Lee, and J.-C. Chen, “Case study: mobile Java RMI support over

heterogeneous wireless networks,” Journal of Parallel and Distributed Computing (Elsevier), 2007, under revision.

(SCI, EI)

6. J.-C. Chen, J.-H. Yeh, S.-H. Hung, F.-C. Chen, L.-W. Lin, and Y.-W. Lan, “Reconfigurable architecture and mobility

management for next-generation wireless IP networks,” IEEE Transactions on Wireless Communications, accepted

and to appear, 2007. (SCI, EI)

7. J.-C. Chen and W.-M. Chen, “Design and analysis of a mobility gateway for GPRS-WLAN integration,” IEEE

Transactions on Vehicular Technology, to appear in September 2007. (SCI, EI)

10

Categorized Summary

Conference papers : (2006/4/1 ~ 2007/03/31) 1. J.-C. Chen, J.-C. Liang, S.-T. Wang, S.-Y. Pan, Y.-S. Chen and Y.-Y. Chen, “Fast handoff in mobile

virtual private networks,” In Proc. of IEEE International Symposium on a World of Wireless

Mobile and Multimedia Networks (WoWMoM), Buffalo, USA, pp. 548-552, June 2006.

2. J.-C. Chen, T.-C. Chen, T. Zhang, and E. van den Berg, “Effective AP selection and load balancing in

IEEE 802.11 wireless LANs,” To appear in Proc. of IEEE Global Telecommunications Conference

(Globecom), San Francisco, USA, November 2006.

3. J.-C. Liang, J.-C. Chen, and T. Zhang, “Mobile service discovery protocol (MSDP) for mobile ad-hoc

networks,” in Proc. of IEEE International Symposium on Autonomous Decentralized Systems, special

session on ad-hoc networks in automotive networking and applications (ISADS ‘07), (Sedona, AZ), March

2007. (Invited)

11

Categorized Summary

專利申請及獲得1. J.–C. Chen, “Distributed soft handoff among IP-based base stations,” US 7,002,936, issued by U.S.

Patent and Trademark Office, February 21, 2006. (with P. Agrawal and T. Zhang)

2. J.–C. Chen, “Apparatus of dynamically assigning external home agent for mobile virtual private

networks and method for the same (I),” CN 1738280, issued by State Intellectual Property Office of

P.R.C., February 22, 2006. (with L.-W. Lin and Y.-W. Liu)

3. J.–C. Chen, “Apparatus of dynamically assigning external home agent for mobile virtual private

networks and method for the same (II),” CN 1738281, issued by State Intellectual Property Office of

P.R.C., February 22, 2006. (with L.-W. Lin and Y.-W. Liu)

4. J.–C. Chen, “Network-layer and link-layer use of shadow addresses in soft handoff within subnets,” US

7,031,278, issued by U.S. Patent and Trademark Office, April 18, 2006. (with P. Agrawal and T. Zhang)

5. J.–C. Chen, “Network-layer and link-layer use of shadow addresses with IP-based base stations,” US

7,035,236, issued by U.S. Patent and Trademark Office, April 25, 2006. (with P. Agrawal and T. Zhang)

6. J.–C. Chen, “Packet distribution and selection in soft handoff for IP-based base stations among

multiple subnets,” US 7,039,028, issued by U.S. Patent and Trademark Office, May 2, 2006. (with T.

Zhang)

7. J.–C. Chen, “Dynamic assignment and validation of IP address in wireless IP network,” US 7,072,340,

issued by U.S. Patent and Trademark Office, July 4, 2006. (with P. Agrawal and T. Zhang)

12

Categorized Summary

專利申請及獲得7. J.–C. Chen, “Packet distribution and selection in soft handoff for IP-based base stations among

multiple subnets,” US 7,039,028, issued by U.S. Patent and Trademark Office, May 2, 2006. (with T.

Zhang)

8. J.–C. Chen, “Distributed smooth handoff using shadow addresses in IP-based base stations,” US

7,075,910, issued by U.S. Patent and Trademark Office, July 11, 2006. (with T. Zhang)

9. “Method and system for host mobility management protocol,” US 7,184,418, issued by U.S. Patent

and Trademark Office, February 27, 2007. (with S. Baba, A. Dutta, Y. Shobatake, and F. Vakil)

13

A Summary of the Post-Project Plan

Technology 2000-2004 2005-2006 2007-2008

RAMP Implementation of

RAMP architecture

Deploy SIP mobility

as a part of RAMP

architecture

Support more

mobility

managements

sRAMP Implementation of

sRAMP

Support more

security schemes in

RAMP

14

A Summary of the Post-Project Plan

Technology 2000-2004 2005-2006 2007-2008

Wire1X Support for basic

802.1X protocol

Add support for EAP-

TTLS, EAP-PEAP, EAP-

SIM, TLS, TTLS, and

PEAP

Compatible with

IEEE 802.11i

standard

Support more EAP

protocols

Fast SIP mobility

in WiMAX

environment

Implementation of fast

SIP mobility in WiMAX

Further simulation

and analysis of the

performance