Wireless access network continue to differ in distance range, in technologies, and in brand names. These network standards include among others the IEEE802 family WLAN, WiMAX, and Bluetooth; the 3GPP cellular family: GSM, GPRS, EDGE, WCDMA, HSPA, and LTE; the 3GPP2 cellular family: CDMA2000, EV-DO, and UMB; and also the broadcast networks and ultra wideband networks. While the technologies may differ, these differences should be transparent to the users.

To achieve heterogeneous handover, mobility protocols at IP and higher layers have been used. At the physical interface, multiple interface devices have already emerged. Yet seamless handover requires communication across the different technologies and across different layers. The proposed IEEE802.21 standard is the first attempt to standardize an architecture to enable efficient handover across different 802 networks and to extend to cellular networks. It has also been proposed to optimize the security signaling in this architecture and to extend to DVB-H broadcast network.

Outline

• 1 Summary of different wireless access technologies (20 minutes)
  1.1 802 family networks
  1.2 3GPP family networks
  1.3 3GPP2 family networks
• 2 Summary of Mobility technology (30 minutes)
• 3 802.21 Medium Independent Handover (MIH) (40 minutes)
  3.1 Architectural design
  3.2 802.21 services
  3.3 Modified and new interfaces
• 4 802.21 Security issues (30 minutes)
  4.1 Security signaling optimization during handovers
  4.2 MIH-level security

Short Bio:

Presenter 1 Anthony Chan:

H. Anthony Chan received his PhD in physics at University of Maryland, College Park in 1982 and then continued post-doctorate research there in basic science. After joining the former AT&T Bell Labs in 1986, his work moved to industry-oriented research in areas of interconnection, electronic packaging, reliability, and assembly in manufacturing, and then moved again to network management, network architecture and standards for both wireless and wire-line networks. He was the AT&T delegate in several standards work groups under 3rd generation partnership program (3GPP). During 2001-2003, he was visiting Endowed Pinson Chair Professor in Networking at San Jose State University. In 2004, he joined University of Cape Town as professor in the Department of Electrical Engineering. In 2007, he joined Huawei Technologies.

Anthony is Fellow of IEEE, was Administrative Vice President of IEEE CPMT Society and had chaired or served numerous technical committees and conferences. He is distinguished speaker of IEEE CPMT Society and of IEEE Reliability Society since 1997.

Presenter 2 Yoshihiro Ohba

Yoshihiro Ohba is a Research Director in Toshiba America Research Inc. He received B.E., M.E. and Ph.D. degrees in Information and Computer Sciences from Osaka University in 1989, 1991 and 1994, respectively. His interest is standardizing on security and mobility protocols.  He is chair of Security Study Group as well as IETF Liaison in IEEE 802.21 Working Group.