Competence Center for Advanced Network Technologies and Systems

Competence Center for Advanced Network Technologies and Systems The SIMTO Project A Framework for a Flexible Simulation Toolset for Future IP Networks Project Overview and Status Thomas Luckenbach Marc Emmelmann http: //www. fokus. gmd. de/cats <title>, <location> <lecturer>

The SIMTO Idea Home Car Satellite SIMTO Simulation Tools Simulation Models 2001 -04 -05 Simulation Results 2

Knowledge Exchange At GMD FOKUS side SIMTO has established: • research contract with Technical University of Berlin (01. 04. 00 - 31. 03. 01, 6 month student, simulation tool analysis) • research contract with CNUCE (01. 07. 00 - 30. 06. 01, 12 month scientist, TCP/IP via LEO) • research stay of GMD researcher in Pisa (6/00, 2 weeks. , introduction into ATM-Sat, agreement on workplan) • research stay of CNUCE researcher in Berlin (10/00, 1 week, introduction into demonstrator, presentation of results) ð Continuation of SIMTO depends on funding 2001 -04 -05 3

Work Items & Topics n Network Environment & Parameters n Evaluation of Simulation Tools n Review of Project Goals n Simulation Results 2001 -04 -05 4

Network Environment & Parameters n n n Defined by GMD/Fokus Based on LEO Satellite project at GMD Includes definition of: n n n Satellite Orbit Bit-Rates Bit Error Rates Up- & Downlink Delay Intra-Satellite Delay 2001 -04 -05 5

Satellite Orbit, Bit- & Error- Rates ISL: 7 - 10 Gbit/s LEO Satellite 1350 km orbit 45 deg inclination BERs neglected Service Uplink (fixed): 2. 048 Mbit/s Feeder Up & Downlink: 32. 768 Mbit/s BER above MAC 2*10 e-8 Service Uplink (portable): 384 kbit/s Service Downlink: 32. 768 Mbit/s BER above MAC 2*10 e-8 Mobil Terminal Portable Terminal Service Provider 2001 -04 -05 6

Propagation Delays n Up- & Downlink Delay n n n function of slant range analytically gained verified with STK n Intra-Satellite Delay n n n “routes in the sky” still open simulation based forward & backward, “left” & “right” neighbor 2001 -04 -05 7

Evaluation of Simulation Tools 2001 -04 -05 8

Review of Project Goals n “Real Life” Verification of Simulation Results n n n Test-Beds Real Networks Provision of Demonstration Environment n n n Network independent TCP Analyzer User Application Platform 2001 -04 -05 9

Simulation Results & Demonstrator Set-Up n Will be presented by: Dr. Enrico Gregori & Cristina Foderi CNR / CNUCE 2001 -04 -05 10

World Wide Web n http: //www. fokus. gmd. de y Information n http: //www. fokus. gmd. de/cats y Information n about the Competence Center CATS http: //www. fokus. gmd. de/cats/projects y Information n about FOKUS about the project http: //www. fokus. gmd. de/cats/publ y Download this presentation y Other CATS publications 2001 -04 -05 11