CSAIL Event Calendar: Previous Series
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Thesis Defense: Making the Wireless Net Work for You Speaker: Sachin Katti , MIT CSAIL Relevant URL: For more information, please contact Sachin Katti, skatti@mit.edu Increasingly, wireless is becoming the preferred mode of network access in the world. The performance of wireless networks in practice, however, is often disappointing, and is likely to worsen with increasing demand. Motivated by these problems, I propose an alternative design built around network coding to improve throughput and reliability in wireless networks. I will argue that making the simple, yet fundamental, shift of allowing routers the ability to mix (i.e. code data inside the network) instead of store and forward, gives us the ability to design wireless networks which exploit the inherent characteristics of the wireless medium to improve performance. I will present three systems built using novel network coding techniques, COPE, ANC and MIXIT. For all three systems, I will present detailed system implementations and show using results from practical evaluations, that they achieve significantly higher throughput and reliability. Conceptually, this work will make a connection between theoretical network coding and wireless networks, inventing novel practical network coding algorithms which strengthen the theory, as well as using the algorithms to design wireless networks that embrace the basic characteristics of wireless to improve performance in practice.
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