simulating lisp-based multilink communications in aeronautical networks€¦ · simulating...

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