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Seminar: ECE Faculty Candidate Wednesday Minghua Chen Flow Control in Wireless Networks Flow control, including congestion
control for data and rate control for multimedia, is an important issue in
information transmission over wireless networks. In this talk, we formulate the
problem as a concave optimization one, and then we proposed a solution to the
problem that can be modeled as a nonlinear singular perturbed system, and
interpreted as dynamically adjusting both flow rates and number of connections
of users. This modeling generates new insights to practice. We further explore
the uniqueness of equilibrium rate and its global exponential stability, from
both optimization and control perspectives. These results address stability,
scalability and incremental deployment concerns from networking's point of
view. Following theoretical insights, we design practical end-to-end schemes
addressing the flow control problem in practice. Their performances are
evaluated and characterized using both NS-2 simulations and actual experiments
over Verizon Wireless 1xRTT commercial data network. Biography: Minghua Chen is a Ph.D. candidate in
Department of Electrical Engineering and Computer Sciences, |
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