simulating lisp-based multilink communications in aeronautical networks€¦ · simulating...
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Simulating LISP-Based MultilinkCommunications in
Aeronautical NetworksChiara Caiazza, Antonio Virdis, Giovanni Stea
University of Pisa
Outline
• Overview of aeronautical communications
• Handover and Multilink
• LISP protocol
• Performance evaluation
• Conclusions
Aeronautical communications
• Future Communication Infrastructure (FCI)
Core network
LDACS Network
Satcom network
Aircraft Mobile network
Ground end system
Multilink Concept
Core network
LDACS Network
Satcom network
Aircraft Mobile network
Ground end system
• How do we select the link?
• How do we enforce this selectionfrom a communication standpoint?
Locator/Identifier Separation Protocol (LISP)
Core network
LDACS Network
Satcom network
Aircraft Mobile network
Ground end system
LISP routers
EID
?
Registration: EID to RLOC
Core network
LDACS Network
Satcom network
Aircraft Mobile network
Ground end system
EID
Mapping Server
EID RLOC Prio
X Y 11
Map Request
Core network
LDACS Network
Satcom network
Aircraft Mobile network
Ground end system
EID
Req EID X
Mapping EID X -> RLOC Y
Mapping Server
EID RLOC Prio
X Y 11
?
Data Transmission
Core network
LDACS Network
Satcom network
Aircraft Mobile network
Ground end system
EID
RLOC
Mapping Server
EID RLOC Prio
X Y 11
EID X
Motivation
• Studying Aeronautical communications in a Multilink environment
• Evaluating the impact of communication protocols in terms of:• System overhead (number of additional messages)
• System load (computation at critical nodes, storage capacity)
• Extensible to:• Multiple DataLinks
• Multiple Applications and Communication Services
SAPIENT Simulator: Modeling the Communication Network
Ground Application(e.g. ATN)
ATM/AOC
ATN/IPS(SWIM based)
Terrestrial DLService Provider
Satellite DLService Provider
Airborne Application
Terrestrial DLreceiver
Satellite DLreceiver
A/C Domain
DL Domain
Core Network Domain
ApplicationDomain
RPAS pilot(e.g. C2)
Multi-link Connection Manager
SAPIENT Simulator
A/C
TerrestrialNetwork
SATCOMNetwork
CoreNetwork
GroundNode
Example: Terrestrial DL (LDACS)
GS GS GS
AC-R AC-R AC-R
AG-R AG-R
GG-R
CME
UT UT
LDACSOracle
AirSegment
GroundSegment
from/toCore
L1
L2
IP2LDACS
from/toLDACS
air segment
LDACSInterface Channel
Model
from/toupper layers
PathlossModel
A/C
TerrestrialNetwork
SATCOMNetwork
CoreNetwork
GroundNode
Core network
LDACS network
Ground end system
Simulation Scenario
System Load: stored entries
10 30 50
0
50
100
150
200
250
300
AC =
Nu
mb
er
of
en
trie
sIndirect mode
Direct mode
Direct mode w/ push msgs
System Load: # of messages
Core network
LDACS Network
Satcom network
Aircraft Mobile network
Ground end system
Mapping Server
System Load: # of messages (2)
10 30 50 10 30 50 10 30 50 10 30 50 10 30 50
0
200
400
600
800
1000
Nu
mb
er
of
LISP
Map
Re
qu
est Indirect mode
Direct Mode
delay 0s delay 10ms delay 15ms delay 20ms delay 40ms
Conclusions and Future Work
• SAPIENT + LISP: system-level simulator for FCI and Multilink
• Arbitrarily increase the complexity of domains, keeping the same Router Architecture
• Evaluation of the system LOAD
• Move everything to IPv6
• Testing using realistic traffic models and mobility patterns