1 / 24

Proposed Routing for IEEE 802.11S WMN

Proposed Routing for IEEE 802.11S WMN. Michael Bahr, Siemens Corporate Technology Presented By: Alireza Moghaddam. Overview. History Routing in 802.11s HWMP Reactive/Proactive Routing Hybrid Routing RA-OLSR Summery. History. Drafts Draft D0.01: March, 2006 (First Draft)

singram
Download Presentation

Proposed Routing for IEEE 802.11S WMN

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript


  1. Proposed Routing for IEEE 802.11S WMN Michael Bahr, Siemens Corporate Technology Presented By: Alireza Moghaddam

  2. Overview • History • Routing in 802.11s • HWMP • Reactive/Proactive Routing • Hybrid Routing • RA-OLSR • Summery

  3. History • Drafts • Draft D0.01: March, 2006 (First Draft) • Draft D1.0: Dec, 2006 • Draft D1.06: July, 2007

  4. Example of IEEE 802.11s

  5. Routing • Necessary HWMP routing • Reactive Routing • Proactive Routing • Optional RA-OLSR

  6. Routing • Based on MAC address. • Uses radio-aware routing metric. • Unicast, Multicast and Boradcast. • Path Selection vs. routing. • Single/Multiple radio devices.

  7. Frame Extension • Extension of 4-address frame. • MAC layer is amended. • Physical Layer stays intact. • Compatible with other layers. • Mesh security is based on 802.11i.

  8. Routing

  9. HWMP • Foundation: Adaptation of RM-AODV • Default routing protocol for IEEE 802.11s • Reactive/proactive routing components. • Used in IEEE 802.11s because • Mobile Nodes • Static Nodes

  10. Reactive routing • Definition • Based on AODV and DSR • MAC-LAYER and RA-Metric • RREQ, RREP, RERR messages.

  11. Proactive Routing • Def: Maintain routes to all destinations • Why Proactive routing? • Registration/Non-registration Modes

  12. Non-Registration Mode • RANN messages • Nodes have path to root • Root has no information about children

  13. Registration Mode • Each node has registers itself to the root. • Nodes have Path to the root • Root has list of all nodes inside network.

  14. Hybrid Routing • Precondition for Hybrid Routing • How does it work?

  15. Hybrid Routing

  16. Hybrid Routing

  17. Hybrid Routing

  18. HWMP

  19. RA-OLSR • Optional proactive routing protocol of the emerging IEEE 802.11s framework. • Adaptation of OLSR • Routing Metric: Radio-Aware • Use of Mac instead of IP • Why RA-OLSR?

  20. RA-OLSR

  21. RA-OLSR • Multi-Point Relays Selection Criteria • Hello Messages • Advantages • Disadvantages

  22. Summery • 802.11s is a standard for WMN • Uses a Hybrid Routing • Reactive/Proactive/RA-OLSR • It’s NOT complete yet.

  23. Questions

More Related