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Banerjee's Thesis wins UMass Outstanding Dissertation Award


Improved Network Consistency and Connection in Mobile and Sensor Systems Ph.D. Dissertation, University of Massachusetts, Amherst, September 2009 Winner of the 2009 UMass/Yahoo! Outstanding Dissertation Award!
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Abstract Edge networks such as sensor, mobile, and disruption tolerant networks suffer from topological uncertainty and disconnections due to myriad of factors including limited battery capacity on client devices and mobility. Hence, providing reliable, always-on consistency for network applications in such mobile and sensor systems is non-trivial and challenging. However, the problem is of paramount importance given the proliferation of mobile phones, PDAs, laptops, and music players. This thesis identifies two fundamental deterrents to addressing the above problem. First, limited energy on client mobile and sensor devices makes high levels of consistency and availability impossible. Second, unreliable support from the network infrastructure, such as coverage holes in WiFi degrades network performance. We address these two issues in this dissertation through client and infrastructure end modifications. The first part of this thesis proposes a novel energy management architecture called Hierarchical Power Management (HPM). HPM combines platforms with diverse energy needs and capabilities into a single integrated system to provide high levels of consistency and availability at minimal energy consumption. We present two systems Triage and Turducken which are instantiations of HPM for sensor net microservers and laptops respectively. The second part of the thesis proposes and analyzes the use of additional infrastructure in the form of relays, mesh nodes, and base stations to enhance sparse and dense mobile networks. We present the design, implementation, and deployment of Throwboxes a relay system to enhance sparse mobile networks and an associated system for enhancing WiFi based mobile networks.

News

Hamed Soroush, Nilanjan Banerjee, Aruna Balasubramanian, Mark D. Corner, Brian Neil Levine, and Brian Lynn. In Proc. ACM Intl. Workshop on Hot Topics of Planet-Scale Mobility Measurements (HotPlanet), June 2009. PDF
Aruna Balasubramanian, Brian Neil Levine, and Arun Venkataramani. IEEE/ACM Transactions on Networking, 18(2):596--609, April 2010. PDF.
Nilanjan Banerjee, Mark D. Corner, and Brian Neil Levine. IEEE/ACM Transactions on Networking, 18(2):554--567, April 2010. PDF
Architecting Protocols to Enable Mobile Applications in Diverse Wireless Networks. Aruna Balasubramanian. PhD thesis, University of Massachusetts Amherst, Amherst, MA, February 2011.
System support for perpetual mobile tracking Ph.D. Thesis. Univ. of Massachusetts Amherst
Improved Network Consistency and Connection in Mobile and Sensor Systems Ph.D. Dissertation, University of Massachusetts, Amherst, September 2009 Winner of the 2009 UMass/Yahoo! Outstanding Dissertation Award!