Tr@Ins7 Heterogeneous Access Daan Pareit

429 views

Published on

0 Comments
0 Likes
Statistics
Notes
  • Be the first to comment

  • Be the first to like this

No Downloads
Views
Total views
429
On SlideShare
0
From Embeds
0
Number of Embeds
3
Actions
Shares
0
Downloads
4
Comments
0
Likes
0
Embeds 0
No embeds

No notes for slide

Tr@Ins7 Heterogeneous Access Daan Pareit

  1. 1. IBBT Tr@ins WP6: Interworking Daan Pareit IBBT – IBCN – Ghent University
  2. 2. Interworking 2
  3. 3. NOC Train management AAA NAT Internet Mobility DHCP Management Mobility Management Local content
  4. 4. NOC Train management AAA NAT Internet Mobility DHCP Management Mobility Management Local content
  5. 5. Mobility Management Central Mobility Management Train QoS management Data QoS- Aggregation Buffer Gateway analysis scheduler unit QoS management Aggregation QoS- Data Gateway Buffer unit scheduler analysis Tunnel management Tunnel management Handover protocol Handover protocol PDF Monitoring Monitoring
  6. 6. Handover protocol  Two alternatives  Mobile IP (MIP)  Mobile Multi-Path SCTP (MMP-SCTP)  Train = a mobile router Passengers = a mobile network  User devices don’t need to be MMP-SCTP or MIP-aware
  7. 7. Handover protocol  MMP-SCTP vs MIP  MMP-SCTP has multihoming  MMP-SCTP has built-in reliability  MMP-SCTP has a higher overhead than MIP, but a higher throughput in WLAN
  8. 8. Handover protocol IN Passenger Passenger … TCP/ TCP/ UDP UDP IP IP data data OUT Passenger Passenger … TCP/ TCP/ UDP UDP MIP IP IP IP IP data data MMP- … CHUNK Passenger CHUNK Passenger TCP/ TCP/ UDP UDP SCTP IP IP IP data data SCTP
  9. 9. Handover protocol L2 Throughput in a WLAN 40,0 35,0 30,0 25,0 Throughput 20,0 (Mbps) 15,0 10,0 5,0 mSCTP MIP 0,0 0 500 1000 1500 Passenger IP packet size (bytes)
  10. 10. Mobility Management Central Mobility Management Train QoS management Data QoS- Aggregation Buffer Gateway analysis scheduler unit QoS management Aggregation QoS- Data Gateway Buffer unit scheduler analysis Tunnel management Tunnel management Handover protocol Handover protocol PDF Monitoring Monitoring
  11. 11. Policy Decision Function  Decides on interfaces to be used  Decision based on:  SNR, packet loss, traffic measurements  GPS, speed & management info  IEEE 802.21 MIH events and triggers  Load balancing, cost
  12. 12. Mobility Management Central Mobility Management Train QoS management Data QoS- Aggregation Buffer Gateway analysis scheduler unit QoS management Aggregation QoS- Data Gateway Buffer unit scheduler analysis Tunnel management Tunnel management Handover protocol Handover protocol PDF Monitoring Monitoring
  13. 13. QoS classes are mapped QoS on outgoing links (Load balancing) buffer Mapping acceptors manager 5 QoS-classes: • Background: FTP • Best effort: Surfing, Email shaper • Streaming: Video stream shaper • Interactive: VoIP call schedulers • Priority: Crew Comm. Data analysis QoS-scheduler Buffer
  14. 14. Demo & questions 14

×