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Now showing items 41-50 of 77
Air time : another measure of the quality of passenger service
(Massachusetts Institute of Technology, 2006)
The proposal of a new metric called "Air Time" and its various components, show the advantage of having a broader perspective of the travel process of airline passengers. Travel time is basically affected by three different ...
Efficient scheduling of multi-antenna broadcast systems
(Massachusetts Institute of Technology, 2006)
In this thesis, we study the problem of efficiently scheduling users in a multi-antenna Gaussian broadcast channel with 1M transmit antennas and K independent receivers each with a single receive antenna. We first focus ...
An energy optimal power supply for digital circuits
(Massachusetts Institute of Technology, 2006)
The energy efficiency of digital circuits continues to be a major factor in determining the size and weight of battery-operated electronics. Integration of more functionality in a single system has made battery longevity ...
Bayesian networks for cardiovascular monitoring
(Massachusetts Institute of Technology, 2006)
In the Intensive Care Unit, physicians have access to many types of information when treating patients. Physicians attempt to consider as much of the relevant information as possible, but the astronomically large amounts ...
Reliability of a Gaussian channel in the presence of Gaussian feedback
(Massachusetts Institute of Technology, 2006)
The communication reliability, or error exponent, of a continuous time, infinite band-width, Additive White Gaussian Noise channel was studied under a peak power constraint, in the presence of a feedback channel that was ...
Developing and implementing standard logistics solutions for Eastman Kodak Company's inbound supply chain
(Massachusetts Institute of Technology, 2006)
Eastman Kodak Company managed its supply chain operations at a regional level until 2002 when it created the Global Logistics group. Prior to this, there had not been much corporate focus on the inbound supply chain; in ...
Convergence speed in distributed consensus and averaging
(Massachusetts Institute of Technology, 2006)
We propose three new algorithms for the distributed averaging and consensus problems: two for the fixed-graph case, and one for the dynamic-topology case. The convergence times of our fixed-graph algorithms compare favorably ...
Consensus and collision detectors in wireless ad hoc networks
(Massachusetts Institute of Technology, 2006)
In this study, we consider the fault-tolerant consensus problem in wireless ad hoc networks with crashprone nodes. Specifically, we develop lower bounds and matching upper bounds for this problem in single-hop wireless ...
Radiofrequency detector coil performance maps for parallel MRI applications
(Massachusetts Institute of Technology, 2006)
Parallel MRI techniques allow acceleration of MR imaging beyond traditional speed limits. In parallel MRI, arrays of radiofrequency (RF) detector coil arrays are used to perform some degree of spatial encoding which ...
RF phase modulation of optical signals and optical/electrical signal processing
(Massachusetts Institute of Technology, 2006)
Analog RF phase modulation of optical signals has been a topic of interest for many years, mainly focusing on Intensity Modulation Direct Detection (IMDD). The virtues of coherent detection combined with the advantages of ...