Network Design

Our assumption Primary target: Mobile Router Scenarios NEMO Basic Support only NEMO Basic Support and PMIPv6 support on WiMAX MR uses the HoA assigned by LMA as CoA Optional target: Mobile Node Scenarios Mobile IPv6 Proxy Mobile IPv6 Mobile IPv6 and Proxy Mobile IPv6 The similar techniques developed for the primary target may be applied to this scenario as well Out of scope Regular IPv6 node Regular IPv6 router Mobile Router support by Proxy Mobile IPv6 PMIPv6 does not support mobile network

Primary: NEMO over WiMAX for IPTV

IPTV Service Platform IGMP PIM Multicast Source CSN ASN-GW ASN MR IGMP Proxy Multicast Stream IGMP Report HA: Home Agent MR: Mobile Router NEMO Basic Support only HA

IPTV Service Platform IGMP Multicast Source CSN LMA MAG ASN IGMP Proxy MR IGMP Proxy Multicast Stream IGMP Report LMA: Localized Mobility Anchor MAG: Mobility Access Gateway HA: Home Agent MR: Mobile Router NEMO Basic Support and P-MIPv6 support on WiMAX PIM IGMP Proxy HA

Optional: MIP6 over WiMAX for IPTV

IPTV Service Platform IGMP Multicast Source CSN ASN-GW ASN MN Multicast Stream IGMP Report HA: Home Agent MN: Mobile Node MN Mobile IPv6 PIM HA

IPTV Service Platform PIM Multicast Source CSN LMA MAG ASN IGMP Proxy MN Multicast Stream IGMP Report LMA: Localized Mobility Anchor MAG: Mobility Access Gateway MN: Mobile Node MN Proxy Mobile IPv6 IGM P

IPTV Service Platform IGMP Multicast Source CSN LMA MAG ASN IGMP Proxy Multicast Stream IGMP Report LMA: Localized Mobility Anchor MAG: Mobility Access Gateway HA: Home Agent MN: Mobile Node Mobile IPv6 and Proxy Mobile IPv6 PIM IGMP Proxy MN HA

Out of Scope

IPTV Service Platform IGMP PIM Multicast Source CSN ASN-GW ASN node IGMP Proxy MR: Mobile Router IPv6 Node Multicast Stream IGMP Report

IPTV Service Platform IGMP Multicast Source CSN ASN-GW ASN Router LMA: Localized Mobility Anchor MAG: Mobility Access Gateway MN: Mobile Node Router IPv6 Router PIM Multicast Stream IGMP Report

IPTV Service Platform IGMP Multicast Source CSN LMA MAG ASN IGMP Proxy MR IGMP Proxy Multicast Stream IGMP Report LMA: Localized Mobility Anchor MAG: Mobility Access Gateway MR: Mobile Router Proxy - NEMO?? (really?) PIM

Research Plan

Research Areas We address three areas and work on IPTV over WiMAX for these three areas. Note that we don't imply that we will have a deliberative item per area. This is just our formation. We may deliver three items from one of area depending on discussions with Huawei. Network: Mobility and Multicast Layered Multicast for IP multicast/MCBCS Quality adaptation for IPTV on WiMAX

1. Network Area

Research Topics The multicast states transfer when MN is roaming. We consider the PMIP case and assumes MAG is available in the ASN. There are two possibilities here, 1) State trasfer from LMA to MAG during the binding registration, 2) State transfer from old MAG to new MAG. The 2) approach has several problems such as new MAG discovery and security association between MAGs,etc. The assumed states are … Analysis on multi-IGMP Proxies PIM vs IGMP proxy network design IGMP tuned for WiMAX Query interval Limiting leave query proxy has states or not?

Research Topics About MCBCS Support We believe whether MCBCS is used in wireless path is nothing to do with the IP network design and IP multicast design unless we consider layered-multicast (see the research area2). L3 is nothing to do with the L2 transport method. From L3 point of view, either P2P-unicast or MCBCS is same. If Huawei is interested in, we can investigate the Multicast ID mapping to IP flow. Only our concern is that many people has already worked on this topic (ex. 16ng).

2. Layered Multicast Area

Layered multicast for adaptive modulation Problem statement With WiMAX multicast, multicast data transmission rate depends on the link capacity of the node whose link quality is worst Nodes with good wireless connection cannot get high-quality multicast data Combination of layered multicast and adaptive modulation Nodes come to be able to receive the multicast data with proper quality depends on their wireless connection quality Key Technolgies Layered multicast Network resource aware multicast data transmission method Multicast group management Dynamic IP multicast group management based on the nodes’ current physical layer modulation Mapping between an IP multicast group to a modulation based WiMAX multicast group

Layered Multicast Hierarchical data structure Data are divided into several “Layer” Layer is multimedia data unit Video quality control selecting the number of accepting layers Layer Base Layer  Base Multimedia data Enhanced Layer  Quality enhancement data Multicast tree structure Data are deliverd with IP multicast Senders provide maximum quality data Intermediate nodes decrease layers to send adapting to the network resource

64QAM16QAMQPSKBPSK 64QAM Capable Group:FEC0::2:1 16QAM Capable Group:FEC0::2:2 QPSK Capable Group:FEC0::2:3 BPSK Capable Group:FEC0::2:4 Modulation based multicast group management

Base Layer Enhance Layer 1 Enhance Layer 2 Enhance Layer 3 BPSK QPSK 16QAM 64QAM Layered multicast for adaptive modulation

3. Quality adaptation for IPTV on WiMAX

Our assumption and primary target Network Scenario: NEMO Basic Support only NEMO Basic Support and PMIPv6 support on wimax Target: focusing on “multicast over unicast” Providing the stable IPTV broadcast quality help reducing quality losses Reduce the time in which the quality is kept bad Adaptation range for keeping quality Between BS and Mobile router The upper range could be based on QoS (L3, L2)

IPTV Service Platform IGMP Multicast Source CSN LMA MAG ASN IGMP Proxy MR IGMP Proxy Multicast Stream IGMP Report LMA: Localized Mobility Anchor MAG: Mobility Access Gateway HA: Home Agent MR: Mobile Router Network Scenario(1/2) PIM IGMP Proxy HA Adaptation range

IPTV Service Platform IGMP PIM Multicast Source CSN ASN-GW ASN MR IGMP Proxy Multicast Stream IGMP Report HA: Home Agent MR: Mobile Router Network Scenario(2/2) HA Adaptation range

The overview about adaptation ASN BS Proxy AR CSN Adaptation adaptation QoS based on each connection e MAC Layer wireless link control QoS scheduling ＋ proposed adaptation method adaptation MR adaptation Multicast flow ・ ASNGW, ・ MAG, ・ Original server Our focus point

Adaptation model MPEG2-TS H.264/MPEG4 MPEG1/2 Reducing consumption bandwidth (recompression/Rate control) Dynamic FEC Encryption Decryption Authentication Upper Layer Network Layer DataLink Layer Unicast Multicast Middleware Ethernet ATM Service Specific Convergence Sublayer e MAC Common Part Sublayer OFDM/OFDMA Physical Layer IPTVVideo Audio

Research Plan Take account of wimax characteristic to use FEC and Rate Control effectively Video format The amount of receive buffer Parameter Received signal strength BER PER The number of multicast channel (join,leave) Middleware To get the wireless link state for adaptation MR, ASNGW, BS… Policy management Collaboration within other Wimax Encryption/decryption and authentication (our scope?) Resource management for high priority flow