Vasanta G. Chaganti

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Signal variation in Body Area Networks (BANs) is dominated by slow, macroscopic fading. The quantized (state) channel has long, and variable state-holding times. We motivate the use of a semi-Markov approach to model the quantized channel gain and show that for everyday activities and on-body (real-world) measurements this approach leads to tractable limits(More)
Network management logs from a campus 802.11 network of nearly 4,500 ARUBA access points at the University of Massachusetts Amherst are presented. The processing steps to transform the logs from a series of individual network events, into user session trajectories are described and preliminary results are shown based on the user mobility characteristics. We(More)
End-to-end (E2E) reliable communication in Delay Tolerant Network (DTN) is a challenging task due to long delay and frequent link disruptions. To enable reliability, the IETF is currently looking at strategies to integrate erasure coding mechanisms inside DTN architecture. The objective is to extend the ability of the existing DTN bundle fragmentation(More)
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