enabling soft vertical handover for mipv6 in omnet++
TRANSCRIPT
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15.09.2016 www.tu-ilmenau.de
Enabling Soft Vertical Handover
for MIPv6 in OMNeT++
Atheer Al-Rubaye, Ariel Aguirre, Jochen Seitz
Communication Networks Group
Technische Universität Ilmenau
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Outline
Motivation and Goal
Challenges
xMIPv6
Management at the Link Layer
Modifications at the Network Layer
Simulations
Conclusions and Outlook
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Motivation
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Heterogeneous Networks.
Always Best Connected (ABC).
The Goal: Seamless Soft Handover (make-before-break)
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Challenges
Having multiple interfaces is not enough.
Further objectives:
1. Gathering of information.
2. Decision making.
3. Management of interfaces.
Softly switch traffic in between (make-before-break).
4. Address resolution.
MIPv6 ( with support to multiple interfaces)
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xMIPv6
• An MN has HoA as fixed ID
• Reachable through CoA when roaming
• HA is the anchor point, should always notified upon HO.
Multi-interface is not implemented !
Sophisticated mobility model !
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Management at the Link Layer
VHO-Controller
Overlay manager
• A simple module inside IPCoManager
• Grants Interface highest management entity (Agent) a permission-to-connect (msg).
Make-before-break.
• HO in overlap area
• Switching when the 2nd interface is associated
and configured
• Disconnect the prev. interface.
Maintains a structure for interfaces
attributes.
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• vhoCtrler updates the routing table upon DAD
completion.
• xMIPv6 queries vhoCtrler to identify the active
interface.
• Retrieves the Home-related info. accordingly for BU.
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Modifications at the Network Layer
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Simulations
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Home and foreign networks.
MIPv6, Hard HO vs Soft HO.
Tractor mobility
A constant speed (1, 2, 5,10 mps).
Video sending rates (0.5, 2 Mbps).
VoIP with 20 ms packetization
MN with 1, 2 interfaces.
Sim. time (200 – 2000 s)
10 HOs.
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Simulations
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Simulations
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Simulations
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Conclusions
Enhanced performance due to soft handover.
No modifications are needed beyond the MN.
Outlook More sophisticated simulation scenarios
Battery life consideration.
Significant contributions: HMIPv6 and PMIPv6 in xMIPv6
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Thank you
Q?
15.09.2016 www.tu-ilmenau.de