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Experimental Agenda MIT jointly with UCLA and BBN

Experimental Agenda MIT jointly with UCLA and BBN. Danail Traskov GEC 11, Denver July 27, 2011. Acknowledgements. MIT: Muriel Médard , Ali Parandehgheibi , Jason Cloud, Au Teerapittayanon UCLA: Mario Gerla , Giovanni Pau, and students

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Experimental Agenda MIT jointly with UCLA and BBN

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  1. Experimental Agenda MIT jointly with UCLA and BBN Danail Traskov GEC 11, Denver July 27, 2011

  2. Acknowledgements • MIT: Muriel Médard, Ali Parandehgheibi, Jason Cloud, Au Teerapittayanon • UCLA: Mario Gerla, Giovanni Pau, and students • BBN: AbhimanyuGosain, HamedSouroush, Harry Mussman • Rutgers: Ivan Seskar • GENI-PO: Aaron Falk

  3. Experiment 1: WiMAX – HARQ/ARQ vs. FEC WiMAX WiMAX architecture Layer Error Control Experiment 1a) Experiment 1b) Experiment 1c) Disable ARQ and HARQ ARQ Network Coding RLC Extend baseline scenario to (in-band) relaying with network coding HARQ MAC Measure loss patterns, loss rates, loss variability, link throughput, and RTT Measure performance with network coding Turbo Code + CRC ED PHY

  4. Experiment 2: Heterogeneous Networking • General setup: 56 kbps Modem IRIDIUM WiMAX WiFi WiMAX Base Station

  5. Example of a configuration:Vehicular network + WiMAX/ Iridium connection Lab WiFi Mesh Vehicle 1 Vehicle 2 WiMax WiFi Iridium WiFi WiFi WiFi WiFi Vehicle 4 Vehicle 3 WiFi

  6. Experiments • First Stage: Collect simultaneous traces over WiFi, WiMAX, and IRIDIUM networks to determine packet loss/drop patterns, packet loss rates, and achievable network throughput/transmission rates. • Data Collection Method: • Transmit UDP packets from a single source through both the IRIDIUM and WiMAX networks to a single sink. • Transmit UDP packets through a WiFi network from one vehicle to another. • Use either modified iperf, or custom measurement script • Second Stage: Evaluate the performance of network coding for the various scenarios • E.g. Coded-TCP (MIT work in progress), CodeTorrent (UCLA)

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