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Experiments

Ashu Sabharwal David Wetherall Srinivasan Seshan Milind Buddhikot Dirk Grunwald Ratul Mahajan Hariharan Rahul. Jitu Padhye Dan Stancil Suman Banerjee Vishnu Navda Carl Gunter Yongguang Zhang. Experiments. Making Experimentation a Science.

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Experiments

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  1. Ashu Sabharwal David Wetherall Srinivasan Seshan Milind Buddhikot Dirk Grunwald Ratul Mahajan Hariharan Rahul Jitu Padhye Dan Stancil Suman Banerjee Vishnu Navda Carl Gunter Yongguang Zhang Experiments Rice University

  2. Making Experimentation a Science • Issue: How do you make experimental results verifiable and “repeatable” ? • Proposals • Publish data sets, annotated as much as possible • Publish code, especially if using a publicly available platform • Network Emulation • Make the whole process of presenting results close to how a “proof” is presented Rice University

  3. Where is the Platform Which Helps me ? • Issue: I have to spend years making a platform • Unpublishable • It does not do what I want it to do • “They” do not provide me the APIs • By the time I get the platform, it is useless. Commodity hardware does more. • Proposals: Little consensus (FPGA/GPU/GPP) • Continued $ important to build platforms (NSF/GENI) • Important to build human capital to extend/use the platform • Roadmap for RF capabilities • My take: If you need it, you will have to spend the time/money Rice University

  4. Role of Simulations • Issue: Revisit ? • Models • System level modeling accuracy unestablished/unclear • How do we proceed for the new modalities (cognitive/DSA) • Proposal: • Not be afraid of ns-2/802.11 fiasco • Simulations are great for indicating coarse trends • Closer to emulation by using real data • A combination of analysis, simulations & experiments Rice University

  5. Cool Idea of Day • Grass-root efforts can be quite powerful • SETI@home • UC Riverside, use motion sensors for early earthquake detection • Can we somehow use currently deployed hardware to collect spectrum usage statistics • A lot of WiFi devices • Programmable cellular devices • Sparse deployments of GNUradio like setups Rice University

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