Context and Problematic

1
Context and Problematic
2
Agenda of rendezvous points
12h13h
08h12h 13h17h
AP52
AP14
Agenda of dst.
AP525
20h8h
3
Control of the propagation of location updates

• Observations
• Local micro-mobility
• Ping-pong effects
• Our approach
• Use the history of associations
• Gather close APs
• Metric Number of roaming events
• Only cluster heads can be anchor

Home
Wireless Mesh Routers
Ping-pong effect
Office
APa
Cluster D
900
APd
19
APb
APg
10
80
Cluster A
APc
21
10
33
APh
2
APe
APf
Bi-directional roaming events
60
9
Cluster E
Cluster H
4
Overview

• Agenda dissemination
• After each update (predefined)
• Primitives PUT, SHARE
• Location lookup
• Lookups forwarded to the anchor
• Location corrections