1 WP2.5 - Multi-level Mobility Support in IP-based HAP Networks Roman Novak Jozef Stefan Institute.
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Transcript of 1 WP2.5 - Multi-level Mobility Support in IP-based HAP Networks Roman Novak Jozef Stefan Institute.
1
WP2.5 - Multi-level Mobility Support in IP-based HAP Networks
Roman Novak
Jozef Stefan Institute
2
Introduction
alternative communication scenarios
all-IP approach
mobility architecture
support for multi-level mobility
route optimization issues
conclusion
3
Communication Scenarios
alternativesstand-alone vs. integrated network
transparent payload vs. switching payload
four network architecturesstandalone platform scenario
scenario with the network of platforms connected via ground stations (GSs)
scenario with platform interconnection via interplatform links (IPLs)
scenario with platform to satellite links (PSLs)
4
Network Architecture
IP
Groundstation
IPLIPL
PSL
Switch /Gateway
bac
khau
l lin
k
use
r lin
k
HAP
HAP
HAP
PDA
PDA
WLAN
WLAN
5
All-IP Approach
IP in the native mode, not only for transport purposes
the architecture can be build from the scratch
why IP:
prevalent fixed networking standard
simple and stateless
complexity pushed to the edge
6
Mobility Architecture
mobility of vehicles and passengers
wireless links within the network
Micro mobility
Macro mobility
Access mobility
7
Access-level Mobility
within single HAP coverage area
loose coupling with IP-mobility
exploits specifics of link layer
access control to a link
8
Macro-mobility
Mobile-IP, SIP, Multicast
two-level Mobile IP
route optimization is well-defined for top-level Mobile IP, multi-level mobility poses difficulties
inefficient inter- and intra-platform communications
9
Routing in Two-level MIP
MNHA
CN
MN
MRHA
HAP
MRHAP - High Altitude PlatformMN - Mobile NodeMR - Mobile RouterHA - Home AgentCN - Correspondent Node
a) HAP-to-Internet b) HAP-to-HAP
MN1
HA
MN2
HA
MN1
MN2
MR2
HA
MR2
HAP2
MR1
HA
HAP1
MR1
10
MIP Route Optimization
CN
MN
MRHA
HAP
MR
a) HAP-to-Internet b) HAP-to-HAP
MN1
MN2
MR2
HA
MR2
HAP2
MR1
HA
HAP1
MR1
11
Micro-mobility
movement detection and registration latency of MIP
tree-like hierarchy of local routersCellular IP, Hawaii, TeleMIP
tunnel-based schemesHierarchical MIP (HMIP)
route optimality issue: anchor node is included in most communications
alternative: platform vs. ground based anchor node
12
HMIP-based Route Optimization
MN
MRMAP - Mobility Anchor Point
a) HAP-to-Internet
MAP
HAP
b) HAP-to-HAP
MN1
MN2
MAP
HAP1
MR1
MR2
HAP2
CN
13
Conclusion
HAPs can be deployed within different architectures
adequate mobility architecture need to be defined
multi-level mobility solutions are under development
intra-domain route optimization issue for HMIP-based multi-level mobility