Search
Now showing items 71-80 of 337
Autonomous routing algorithms for networks with wide-spread failures : a case for differential backlog routing
(Massachusetts Institute of Technology, 2008)
We study the performance of a differential backlog routing algorithm in a network with random failures. Differential Backlog routing is a novel routing algorithm where packets are routed through multiple paths to their ...
An extensible Web tool for the collection, sharing, and annotation of audio documents
(Massachusetts Institute of Technology, 2008)
The growth of the World Wide Web has been accompanied by a proliferation of rich, time-based media such as audio and video documents. However, the ability to categorize and index these documents has not improved comparably, ...
An FPGA implementation of multicore, multithreaded powerPC processors with memory subsystem using Bluespec
(Massachusetts Institute of Technology, 2008)
This thesis describes the design, construction and integration of a multicore processor and a memory subsystem. The work is part of a joint project with IBM Watson research. The processors have multithreading capacities ...
Null power reallocation for data rate improvement in a wireless multicarrier system
(Massachusetts Institute of Technology, 2008)
Multicarrier systems are advantageous for high data rate transmissions in wireless environments due to their ease of implementation and tolerance for multipath delay spread. Currently, these systems as specified by the ...
Analysis of peak characterization and data alignment of a differential mobility spectrometer for the discovery of TB biomarkers in human breath
(Massachusetts Institute of Technology, 2008)
Biomarkers have become a growing field for disease research and diagnostics. For the infectious, deadly disease, tuberculosis (TB), the discovery of effective TB biomarkers in the human breath may enable the development ...
Estimation and calibration algorithms for distributed sampling systems
(Massachusetts Institute of Technology, 2008)
Traditionally, the sampling of a signal is performed using a single component such as an analog-to-digital converter. However, many new technologies are motivating the use of multiple sampling components to capture a signal. ...
Coordination and competition in resource-constrained channels
(Massachusetts Institute of Technology, 2008)
This thesis deals with five important ideas pertaining to supply chains and supply contracts: coordination, flexibility in allocating profit, the push-pull boundary, the valuation of capacity, and cooperation versus ...
The expandable network disk
(Massachusetts Institute of Technology, 2008)
This thesis presents a virtual disk cluster called END, the Expandable Network Disk. END aggregates storage on a cluster of servers into a single virtual disk. END's main goals are to offer good performance during normal ...
Nested chopper stabilization in analog multipliers and mixers
(Massachusetts Institute of Technology, 2008)
We describe a general offset-cancelling architecture for analog multiplication using chopper stabilization. Chopping is used to modulate the offset away the output signal where it can be easily filtered out, providing ...
Fabrication and material characterization of silver cantilevers via direct surface micromachining
(Massachusetts Institute of Technology, 2008)
Microelectromechanical Systems (MEMS) rely heavily on the semiconductor industry's manufacturing paradigm. While the standardized process model allows semiconductor chips to benefit from economy of scale and be sold at low ...