1. IP Deployment over IEEE 802.16 Networks
Ji Hoon Lee

2. Motivation Show how IP is deployed in real 802.16 networks
Deployment scenarios
Network architecture
Functional decomposition
Deployment considerations
CS type and link model selection
Other issues (addressing, IP routing/forwarding, IP QoS, multicast/broadcast, mobility, security, applications,…)

3. Deployment Scenarios Wireless Access Service Interworking with
Fixed: WiMAX
Mobile: Mobile WiMAX and WiBro
Interworking with
DSL networks
3G cellular networks

4. Real Examples Wireless Mobile Access
IP deployment in WiBro networks
Appendix: Multicast Broadcast Service
IP multicast testbed for multimedia services

5. WiBro Networks First WiBro Networks Next WiBro Networks
ACR has some MAC-related functions.
WiMAX Profile A (obsoleted)
IPv4 CS
Commercially deployed
Next WiBro Networks
Provide p-t-p connections
WiMAX Profile C
IPv4/IPv6 CS
Start deployment in 2008.

6. Current WiBro Network Supports: Does NOT support: IPv4 CS
IP unicast best-efforts services
Dynamic IPv4 address assignment (DHCP)
Link-layer Mobility
Authentication
Does NOT support:
ETH/IPv6 CS
Direct peer-to-peer communication
IP multicast/broadcast services
IP QoS
IP Mobility
Traffic Encryption

7. WiBro Link Model IPv4 CS Alternatives Prefer shared-prefix model
Multi-link subnet issues (RFC4903)
Alternatives
IPv6
Ethernet-like?
What else in IPv4?

8. WiBro IP Packet Forwarding

9. Summary IP Deployment over IEEE 802.16 Networks Initial discussion
IP deployment scenarios
Deployment considerations
Addressing, Routing/forwarding, IP QoS, IP multicast/broadcast, Mobility, Security,…
Multiple CS

10. Appendix: IP Multicast Testbed over IEEE 802.16 Networks
Goal
Implement IP-based realtime multimedia service over IEEE networks
Assumptions:
very popular contents
Relatively a large amount of data to be distributed
Not designed to support generic IP multicast and broadcast traffics.
Testbed
Realtime streaming service over IP over IEEE MBS.
Mobility utilizing MBS Zones
Macro diversity
Testbed configuration

11. Appendix: Multimedia service over IP over IEEE 802.16
Membership management based on IGMP/MLD
No modification on SS
Query/report overheads
Service cost decreases as the number of users increases.
Illustration of IP multimedia service over IEEE MBS