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Tactical Network Modeling and Simulation Study

Tactical Network Modeling and Simulation Study. Swapnaja Ranade Michael Stephano. Agenda. Scenario description Network model Results and analysis Conclusions. Problem Statement. Observe relationship between physical layer parameters and network layer parameters for a tactical network.

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Tactical Network Modeling and Simulation Study

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  1. Tactical NetworkModeling and Simulation Study Swapnaja Ranade Michael Stephano

  2. Agenda • Scenario description • Network model • Results and analysis • Conclusions

  3. Problem Statement • Observe relationship between physical layer parameters and network layer parameters for a tactical network.

  4. Approach • Model a highly mobile tactical network in OPNET and observe parameters through simulation.

  5. Network Topology and Scale • 2 M1A2 tank companies • 28 total nodes • 20 minute simulation duration • 4.5 km x 4.0 km playbox

  6. Company Hierarchy 1st Platoon 2nd Platoon 3rd Platoon HQ

  7. Battle Phase March Phase Bravo Company Alpha Company

  8. Radio Propagation • 1 W transmission power • Omni-directional antenna • Antenna height of 3 meters • DTED terrain data used • TIREM4 propagation model • Data rate used is 11Mbps

  9. Network Protocols Used • 802.11b • AODV • IP • Represented by OPNET MANET node model

  10. Mobility Model • M1A2 Characteristics • 30 mph mean speed • 17 mph 10% slope • 4.1 mph 60% slope • MATLAB Model • Incorporates DTED data • Speed linearly interpolated based on slope • MATLAB was used to generate trajectory files

  11. Simulation Metrics Collected • Physical Layer • Received Power • SNR • BER • Network Layer • Throughput • Delay • Packet Loss Ratio

  12. OPNET Demo

  13. Traffic Model • Position Updates • Sensor Updates • VoIP Traffic • Other Traffic

  14. Packet Tx/Rx Rate

  15. Data Collected Time Power SNR BER Throughput Latency PLR 0.0 1.5170e-09 41.3 0 3.5738e+05 6.8342e-03 3.0769e-02 1.0 1.7490e-09 38.8 0 7.3606e+05 4.5720e-03 1.9084e-02 2.0 2.0140e-09 39.8 0 1.1087e+06 1.1524e-02 1.4566e-02 3.0 2.2980e-09 39.1 0 1.1307e+06 5.5088e-03 8.0000e-03 4.0 2.6500e-09 39.4 0 1.1183e+06 5.6622e-03 5.3814e-03 5.0 3.1420e-09 39.6 0 1.1235e+06 5.6514e-03 4.5524e-03 6.0 3.7640e-09 39.7 0 1.1168e+06 5.6525e-03 3.3827e-03 7.0 4.3330e-09 39.9 4.10e-11 1.1325e+06 5.4484e-03 2.5316e-03 8.0 4.8420e-09 40.0 0 1.1132e+06 5.6375e-03 2.3791e-03 9.0 5.4510e-09 40.1 2.20e-11 1.0724e+06 9.8462e-03 6.9111e-03 10.0 6.1950e-09 43.5 4.20e-11 1.0481e+06 3.1363e-02 1.3079e-02 11.0 8.1250e-09 43.8 0 1.0414e+06 4.6925e-02 2.0159e-02 12.0 1.2111e-08 42.3 1.19e-10 1.2502e+06 1.3544e-01 9.9167e-03 13.0 1.9789e-08 40.4 6.75e-10 1.1259e+06 5.7345e-03 9.0520e-03 14.0 3.8793e-08 40.7 0 1.1313e+06 5.9660e-03 8.4907e-03 15.0 5.6273e-08 42.7 0 1.1161e+06 6.1210e-03 8.0972e-03 16.0 5.8653e-08 43.8 0 1.1164e+06 5.9077e-03 7.6680e-03 17.0 3.6067e-08 41.0 0 1.1186e+06 5.9030e-03 7.5138e-03 18.0 2.3554e-08 38.7 1.20e-11 1.1191e+06 6.4405e-03 6.8883e-03 19.0 1.6607e-08 37.9 0 1.1302e+06 6.0194e-03 6.5212e-03

  16. Covariance Matrix

  17. Correlation Matrix

  18. Correlation Expectations

  19. Correlation MatrixBased on OPNET Sim Data

  20. Linear Regression (Native Units)Power vs. Packet Loss Ratio y = mx + b m = -2.48 x 106 b = 0.0935

  21. Linear Regression (Z Scores)Power vs. Packet Loss Ratio y = mx + b m = -0.3624 b = 0

  22. Linear RegressionSNR vs. Throughput y = mx + b m = 9.62 x 103 b = 5.41 x 105

  23. Linear RegressionThroughput vs. Packet Loss Ratio y = mx + b m = 9.62 x 103 b = 5.41 x 105

  24. OPNET Model IssuesDiscovered By Analysis • SNR model • Mathematical issue • Correctable in OPNET with modifications • BER model • Inadequate OPNET modulation curves • Correctable in OPNET with modifications

  25. Modulation CurveProduced Analytically r = -0.5621

  26. Conclusions • Correlation analysis • Power and SNR exhibit fairly strong correlation to network parameters • Low BER correlation due to model, not real effect • Regression analysis • Useful but of limited utility • Choosing appropriate physical layer data

  27. References • G. Kelsch, M. Roberts, and D. Harris. Toward New Tactical Network Modeling and Simulation Approaches. In IEEE Military Communications Conference, pages 2396-2401 Vol. 4, October 2005. • United States Army Field Manual. FM 17-15 Tank Platoon. April 1996. • M.J. Ryan and M.R. Frater. Tactical Communications for the Digitized Battlefield. Artech House, Norwood, MA, 2002. • S.K. Kachigan. Multivariate Statistical Analysis: A Conceptual Introduction, 2nd Edition. Radius Press, New York, NY, 1991. • General Dynamics M1A2 Abrams Specifications Sheet.

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