Now showing items 214-233 of 1757

    • Cache management in scalable network servers 

      Pai, Vivek Sadananda (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 

      Jones, Douglas L.; Sayeed, Akbar M. (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 

      Khojastepour, Mohammad; Aazhang, Behnaam (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 

      Muharemovic, Tarik (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 

      Hemkumar, Nariankadu D.; Kota, Kishore; Cavallaro, Joseph R. (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 

      Zubair, Ahmed; Tsentalovich, Dmitri E.; Young, Colin C.; Heimbeck, Martin S.; Everitt, Henry O.; Pasquali, Matteo; Kono, Junichiro (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 

      Skadron, Kevin; Martonosi, Margaret; August, David; Hill, Mark; Lilja, David; Pai, Vijay S. (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.
    • Channel Equalization Algorithms for MIMO Downlink and ASIP Architectures 

      Radosavljevic, Predrag (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 ...
    • Channel equalization algorithms for MIMO downlink and ASIP architectures 

      Radosavljevic, Predrag (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 Estimation and Signal Detection for Multi-Carrier CDMA Systems with Pulse-Shaping Filter 

      Borran, Mohammad Jaber; Varshney, Prabodh; Vilpponen, Hannu; Papadimitriou, Panayiotis (2003-05-20)
      We consider the problem of digital communication in a fading environment using the Multi-Carrier CDMA technology. By incorporating the effect of the pulse-shaping filter in the channel estimation and signal detection ...
    • Channel estimation for code division multiple access communication systems 

      Bensley, Stephen Edward (1994)
      We consider the estimation of channel parameters for code division multiple access (CDMA) communication systems operating over channels with either single or multiple propagation paths. We present two approaches for ...
    • Channel Estimation for Multirate DS-CDMA Systems 

      Sabharwal, Ashutosh; Mitra, Urbashi; Bhashyam, Srikrishna (2000-11-20)
      The problem of channel estimation for multiple data rate Direct-Sequence Code-Division Multiple-Acess (DS-CDMA) systems is addressed. The derived algorithms are suitable for both variable chipping rate and/or variable ...
    • Characterization of block memory operations 

      Calhoun, Michael (2006)
      Block memory operations are frequently performed by the operating system and consume an increasing fraction of kernel execution time. These operations include memory copies, page zeroing, interprocess communication, and ...
    • Characterization of Iron Doped Lithium Niobate for Holographic Storage Applications 

      Shah, Rajiv R.; Kim, Dae M.; Rabson, Thomas A.; Tittel, Frank K. (1976-06-20)
      A detailed study of eight systematically chosen Fe:LiNb0<sub>3</sub> crystals is presented. Correlation between the photorefractive sensitivity and various chemical properties of Fe:LiNb0<sub>3</sub> is investigated in ...
    • Charge Transfer Plasmons: Optical Frequency Conductances and Tunable Infrared Resonances 

      Wen, Fangfang; Zhang, Yue; Gottheim, Samuel; King, Nicholas S.; Zhang, Yu; Nordlander, Peter; Halas, Naomi J. (2015)
      A charge transfer plasmon (CTP) appears when an optical-frequency conductive pathway between two metallic nanoparticles is established, enabling the transfer of charge between nanoparticles when the plasmon is excited. ...
    • Charge Transport and Transfer at the Nanoscale Between Metals and Novel Conjugated Materials 

      Worne, Jeffrey (2012-09-05)
      Abstract Organic semiconductors (OSCs) and graphene are two classes of conjugated materials that hold promise to create flexible electronic displays, high speed transistors, and low-cost solar cells. Crucial to understanding ...
    • Charge-Dependent Transport Switching of Single Molecular Ions in a Weak Polyelectrolyte Multilayer 

      Tauzin, Lawrence J.; Shuang, Bo; Kisley, Lydia; Mansur, Andrea P.; Chen, Jixin; de Leon, Al; Advincula, Rigoberto C.; Landes, Christy F. (2014)
      The tunable nature of weak polyelectrolyte multilayers makes them ideal candidates for drug loading and delivery, water filtration, and separations, yet the lateral transport of charged molecules in these systems remains ...
    • Chip level LMMSE Equalization for Downlink MIMO CDMA in fast fading environments 

      de Baynast, Alexandre; Radosavljevic, Predrag; Cavallaro, Joseph R. (2004-11-01)
      In this paper, we consider linear MMSE equalization for wireless downlink transmission with multiple transmit and receive antennas in fast fading environment. We propose a new algorithm based on conjugate-gradient algorithm ...
    • Chiral and Achiral Nanodumbbell Dimers: The Effect of Geometry on Plasmonic Properties 

      Smith, Kyle W.; Zhao, Hangqi; Zhang, Hui; Sánchez -Iglesias, Ana; Grzelczak, Marek; Wang, Yumin; Chang, Wei-Shun; Nordlander, Peter; Liz-Marzán, Luis; Link, Stephan (2016)
      Metal nanoparticles with a dumbbell-like geometry have plasmonic properties similar to those of their nanorod counterparts, but the unique steric constraints induced by their enlarged tips result in distinct geometries ...
    • Circular Differential Scattering of Single Chiral Self-Assembled Gold Nanorod Dimers 

      Wang, Lin-Yung; Smith, Kyle W.; Dominiquez-Medina, Sergio; Moody, Nicole; Olson, Jana M.; Zhang, Huanan; Chang, Wei-Shun; Kotov, Nicholas; Link, Stephan (2015)
      Circular dichroism spectroscopy is essential for structural characterization of proteins and chiral nanomaterials. Chiral structures from plasmonic materials have extraordinary strong circular dichroism effects compared ...