Dr. Haitham Cruickshank University of Surrey (UK) - TeSA
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COST 272 – Surrey – Toulouse – 11/12 October 2001 Dr. Haitham Cruickshank University of Surrey (UK)
Transcript of Dr. Haitham Cruickshank University of Surrey (UK) - TeSA
COST 272 – Surrey – Toulouse – 11/12 October 2001
Dr. Haitham CruickshankUniversity of Surrey (UK)
COST 272 – Surrey – Toulouse – 11/12 October 2001
❏ BISANTE project overview
❏ GEO satellite modelling and results
❏ LEO satellite modelling and results
❏ Conclusions
COST 272 – Surrey – Toulouse – 11/12 October 2001
❏ The Broadband Integrated Satellite Network Traffic Evaluation (BISANTE) is a European ESPRIT project
❏ The objective is to develop a simulation methodology and framework with a prototype workbench
❏ This paper focuses on the network modelling aspects of of BISANTE
COST 272 – Surrey – Toulouse – 11/12 October 2001
Integration of BISANTE Traffic ModelsIntegration of BISANTE Traffic Models
OPNET Traffic Modelo Interface TPALo Process Model 3o Library 0o External Files 4
BISANTE Traffic Modelo Interface TPAL o Process Model 1o Library 1o External Files 0
COST 272 – Surrey – Toulouse – 11/12 October 2001
Packet Capture
10M Ethernet Hub
Client
Cisco 2514
GEO Satellite (ACTS)
Server
10M Ethernet HubCisco 2514
768Kbps 768Kbps
GEO Satellite Network – NASA’s ACTSGEO Satellite Network – NASA’s ACTS
COST 272 – Surrey – Toulouse – 11/12 October 2001
GEO Satellite SubnetworkGEO Satellite Subnetwork
COST 272 – Surrey – Toulouse – 11/12 October 2001
GEO Satellite Model ValidationGEO Satellite Model Validation
FTP - Measurement vs. Simulation
0
10
20
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60
70
80
0 1000 2000 3000 4000 5000 6000
File Size (KBytes)
Th
rou
gh
pu
t (K
Byt
es)
NASA
SURREY
Compare with NASA’s Measurements
COST 272 – Surrey – Toulouse – 11/12 October 2001
HTTP over GEO SatellitesHTTP over GEO Satellites
COST 272 – Surrey – Toulouse – 11/12 October 2001
IRIDIUMIRIDIUM TELEDESICTELEDESIC
COST 272 – Surrey – Toulouse – 11/12 October 2001
COST 272 – Surrey – Toulouse – 11/12 October 2001
COST 272 – Surrey – Toulouse – 11/12 October 2001
LEO Satellite Model ValidationLEO Satellite Model Validation
Compare with Published Simulation Results
COST 272 – Surrey – Toulouse – 11/12 October 2001
LEO Satellite Model ValidationLEO Satellite Model Validation
Further Validated by STK
COST 272 – Surrey – Toulouse – 11/12 October 2001
Integration of Satellite & Terrestrial ModelsIntegration of Satellite & Terrestrial Models
SIU- Satellite Interface Unit
COST 272 – Surrey – Toulouse – 11/12 October 2001
Statistics from Integrated Network ModelsStatistics from Integrated Network Models
Scenario-1: by Satellites
Scenario-2: by PPP Link
Scenario-3: by LAN
FTP Response Time
Delay Variation of the LEO Satellite Networks
COST 272 – Surrey – Toulouse – 11/12 October 2001
❏ This paper focuses on the networking aspect, where satellite network modelling includes satellite constellations, network modules and protocol architectures
❏ The simulation validation scenarios and results are presented.
❏ The results produced at the network level show the performance of FTP and HTTP over GEO and LEO satellite constellations
❏ simulation scenarios can be useful for network dimensioning and traffic management.
