Now showing items 207-226 of 1823

• #### Bounds for optimal compressed sensing matrices and practical reconstruction schemes ﻿

(2008)
Compressed Sensing (CS) is an emerging field that enables reconstruction of a sparse signal x &isin; Rn that has only k &lt;&lt; n non-zero coefficients from a small number m &lt;&lt; n of linear projections. The ...
• #### Bounds on Achievable Rates for General Multi-terminal Networks with Practical Constraints ﻿

(2003-04-20)
We consider the problem of communication in a general multi-terminal network where each node of the network is a potential sender or receiver (or both) but it cannot do both functions together. The motivation for this ...
• #### Bridging the Programming Gap between Persistent and Volatile Memory using WrAP ﻿

(2013-05)
Advances in memory technology are promising the availability of byte-addressable persistent memory as an integral component of future computing platforms. This change has significant implications for software that has ...
• #### Broadband Absorption Engineering to Enhance Light Absorption in Monolayer MoS2 ﻿

(2016)
Here we take a first step toward tackling the challenge of incomplete optical absorption in monolayers of transition metal dichalcogenides for conversion of photon energy, including solar, into other forms of energy. We ...
• #### Broadband, Polarization-Sensitive Photodetector Based on Optically-Thick Films of Macroscopically Long, Dense, and Aligned Carbon Nanotubes ﻿

(2013)
Increasing performance demands on photodetectors and solar cells require the development of entirely new materials and technological approaches.Wereport on the fabrication and optoelectronic characterization of a photodetector ...
• #### Broadcast Detection Structures with Applications to Sensor Networks ﻿

(2006-03-01)
Data broadcasting is potentially an effective and efficient way to share information in wireless sensor networks. Broadcasts offer energy savings over multiple, directed transmissions, and they provide a vehicle to exploit ...
• #### Broadcast Space-Time Coding ﻿

(2001-08-20)
In this paper, we study transmission techniques for broadcast channels with a single transmitter and multiple receivers. The transmitter is assumed to be equipped with multiple antennas. Further, each receiver is interested ...
• #### Buckminsterfullerene purification and buckminsterfullerene film characterization ﻿

(1994)
A method is described which utilizes the difference in vapor pressure between C$\sb{60}$ and heavier fullerenes to produce C$\sb{60}$ powder with a purity of 99.97%. Using the material from this process allows for the ...
• #### Building a map for robot path planning by fusing video images and laser rangefinder data ﻿

(1993)
This thesis describes algorithms that fuse the data from a single video camera and a laser rangefinder. By merging information from these sensors, the algorithms build a digital map of the local environment for a robot to ...
• #### Bursting, beating, and chaotic modes in mathematical models of the R15 cell in Aplysia ﻿

(1989)
Chaotic regimes have been observed experimentally in neurons as well as in deterministic neuronal models. The bursting R15 cell in the abdominal ganglion of Aplysia has been the subject of extensive mathematical modeling. ...
• #### Cache management in scalable network servers ﻿

(2000)
For many users, the perceived speed of computing is increasingly dependent on the performance of network server systems, underscoring the need for high performance servers. Cost-effective scalable network servers can be ...
• #### A Canonical Covariance Based Method for Generalized Joint Signal Representations ﻿

(1996-04-20)
Generalized joint signal representations extend the scope of joint time-frequency representations to a richer class of nonstationary signals. Cohen's marginal-based generalized approach is canonical from a distributional ...
• #### The Capacity of Average and Peak Power Constrained Fading Channels with Channel Side Information ﻿

(2004-03-01)
We derive the ergodic capacity of discrete-time fading channel with additive Gaussian noise subject to both peak and average power constraint. The average power can be interpreted as the cost that we incur to achieve a ...
• #### Capacity of low power multiuser systems with antenna arrays ﻿

(2005)
In this thesis, we study wireless multiuser communication systems in the regime of low spectral efficiencies, where users and the multiple access point are equipped with antenna arrays. Our first contribution is to develop ...
• #### CAPE - VLSI Implementation of a Systolic Processor Array: Architecture, Design and Testing ﻿

(1991-06-20)
The SVD is an important matrix decomposition in many real-time signal processing, image processing and robotics applications. Special-purpose processor arrays can achieve significant speed-up over conventioinal architectures ...
• #### Carbon nanotube fiber terahertz polarizer ﻿

(2016)
Conventional, commercially available terahertz (THz) polarizers are made of uniformly and precisely spaced metallic wires. They are fragile and expensive, with performance characteristics highly reliant on wire diameters ...
• #### Challenges in Computer Architecture Evaluation ﻿

(2003-08-20)
A report to the US National Science Foundation argues that simulation and benchmarking technology will require a leap in capability within the next few years to maintain ongoing innovation in computer systems.
• #### Changes in Optical Properties of Plasmonic Nanoparticles in Cellular Environments are Modulated by Nanoparticle PEGylation and Serum Conditions ﻿

(2016)
When plasmonic nanoparticles (NPs) are internalized by cells and agglomerate within intracellular vesicles, their optical spectra can shift and broaden as a result of plasmonic coupling of NPs in close proximity to one ...
• #### Channel equalization algorithms for MIMO downlink and ASIP architectures ﻿

(2004)
Processors for mobile handsets in 3G cellular systems require: high speed, flexibility and low power dissipation. While computationally efficient, ASIC processors are often not flexible enough to support necessary variations ...
• #### Channel Equalization Algorithms for MIMO Downlink and ASIP Architectures ﻿

(2004-04-01)
Processors for mobile handsets in 3G cellular systems require: high speed, flexibility and low power dissipation. While computationally efficient, ASIC processors are often not flexible enough to support necessary ...