Now showing items 533-552 of 1050

  • A Mobile Testbed for GPS-Based ITS/IVC and Ad Hoc Routing Experimentation 

    Welsh, Erik; Murphy, Patrick; Frantz, Patrick (2002-10-01)
    Past investigations into the formation of ad hoc networks and ad hoc routing have focused on computer simulations of mobile traffic. However, the proliferation of mobile electronic devices (mobile phones, PDAs, and laptop ...
  • A mode-matching analysis of dielectric-filled resonant cavities coupled to terahertz parallelplate waveguides 

    Astley, Victoria; Reichel, Kimberly S.; Jones, Jonathan; Mendis, Rajind; Mittleman, Daniel M. (2012-09-07)
    We use the mode-matching technique to study parallel-plate waveguide resonant cavities that are filled with a dielectric. We apply the generalized scattering matrix theory to calculate the power transmission through the ...
  • Model-based Inverse Halftoning with Wavelet-Vaguelette Deconvolution 

    Neelamani, Ramesh; Nowak, Robert David; Baraniuk, Richard G. (2000-09-01)
    In this paper, we demonstrate based on the linear model of Kite that inverse halftoning is equivalent to the well-studied problem of deconvolution in the presence of colored noise. We propose the use of the simple and ...
  • Modeling of Welkin RF in a DSSS System 

    Guo, Yuanbin (2000-09-20)
    In this report, the author studied the methodology of distortion-true software modeling for RF (radio frequency) in a DSSS W-CDMA system. A complete end-to-end testbed based on the Welkin RF system is built by SystemView ...
  • Modeling wireless sensor and actuator networks using frame theory 

    Rozell, Chris; Johnson, Don (2005-11-01)
    Wireless sensor networks are often studied with the goal of removing information from the network as efficiently as possible. However, when the application also includes an actuator network, it is advantageous to determine ...
  • Modelling Heterogeneous DSP–FPGA Based System Partitioning with Extensions to the Spinach Simulation Environment 

    Brogioli, Michael; Cavallaro, Joseph R. (2005-11-01)
    In this paper we present system-on-a-chip extensions to the Spinach simulation environment for rapidly prototyping heterogeneous DSP/FPGA based architectures, specifically in the embedded domain. This infrastructure has ...
  • Moments and Error Expressions in Polynomial Minimum Mean Square Estimation 

    Kazakos, D.; Papantoni-Kazakos, P. (1975-05-20)
    The mathematical complexity of the minimum mean square estimators made inevitable the consideration of suboptimal solutions, such as the linear minimum mean square estimators. The compromise between performance and ...
  • Monitoring and Diagnostics for a Hydraulic Robot in Hazardous Environments 

    Leuschen, Martin L.; Cavallaro, Joseph R.; Walker, Ian D. (1999-04-01)
    Hazardous environments are an important application of modern robotic techniques. However, failures can be quite serious in such environments, especially if they trap the robot within or damage containment efforts. Thus ...
  • Multi-class Latency Bounded Web Services 

    Kanodia, Vikram (2000-11-20)
    Two recent advances have resulted in significant improvements in web server quality-of-service. First, both centralized and distributed web servers can provide isolation among service classes by fairly distributing system ...
  • Multi-Layer Parallel Decoding Algorithm and VLSI Architecture for Quasi-Cyclic LDPC Codes 

    Sun, Yang; Wang, Guohui; Cavallaro, Joseph R. (2011-05-01)
    We propose a multi-layer parallel decoding algorithm and VLSI architecture for decoding of structured quasi-cyclic low-density parity-check codes. In the conventional layered decoding algorithm, the block-rows of the parity ...
  • Multi-Rate High-Throughput LDPC Decoder: Tradeoff Analysis between Decoding Throughput and Area 

    Radosavljevic, Predrag; de Baynast, Alexandre; Karkooti, Marjan; Cavallaro, Joseph R. (2006-09-01)
    In order to achieve high decoding throughput (hundreds of MBits/sec and above) for multiple code rates and moderate codeword lengths (up to 2.5K bits), several decoder solutions with different levels of processing parallelism ...
  • Multifractal Cross-Traffic Estimation 

    Ribeiro, Vinay Joseph; Coates, Mark J.; Riedi, Rudolf H.; Sarvotham, Shriram; Hendricks, Brent; Baraniuk, Richard G. (2000-09-01)
    In this paper we develop a novel model-based technique, the Delphi algorithm, for inferring the instantaneous volume of competing cross-traffic across an end-to-end path. By using only end-to-end measurements, Delphi avoids ...
  • Multifractal Formalism for Infinite Multinomial Measures 

    Riedi, Rudolf H.; Mandelbrot, Benoit (1995-01-20)
    There are strong reasons to believe that the multifractal spectrum of DLA shows anomalies which have been termed left sided. In order to show that this is compatible with strictly multiplicative structures Mandelbrot et ...
  • Multifractal products of stochastic processes: construction and some basic properties 

    Mannersalo , Petteri; Riedi, Rudolf H.; Norros , Ilkka (2002-01-15)
    In various fields, such as teletraffic and economics, measured times series have been reported to adhere to multifractal scaling. Classical cascading measures possess multifractal scaling, but their increments form a ...
  • Multifractal Properties of TCP Traffic: a Numerical Study 

    Riedi, Rudolf H.; Vehel, Jacques (1997-10-20)
    We analyze two traces of TCP--traffic recorded at the gateway of a LAN corre­ sponding to two hours at Berkeley and to eight hours at CNET labs respectively. We are mainly interested in a multifractal approach, which we ...
  • Multifractal Signal Models with Application to Network Traffic 

    Crouse, Matthew; Riedi, Rudolf H.; Ribeiro, Vinay Joseph; Baraniuk, Richard G. (1998-08-01)
    In this paper, we develop a new multiscale modeling framework for characterizing positive-valued data with long-range-dependent correlations (1/f noise). Using the Haar wavelet transform and a special multiplicative structure ...
  • A Multifractal Wavelet Model for Positive Processes 

    Crouse, Matthew; Riedi, Rudolf H.; Ribeiro, Vinay Joseph; Baraniuk, Richard G. (1998-10-01)
    In this paper, we develop a new multiscale modeling framework for characterizing positive-valued data with long-range-dependent correlations (1/f noise). Using the Haar wavelet transform and a special multiplicative structure ...
  • A Multifractal Wavelet Model with Application to Network Traffic 

    Riedi, Rudolf H.; Crouse, Matthew; Ribeiro, Vinay Joseph; Baraniuk, Richard G. (1999-04-01)
    In this paper, we develop a new multiscale modeling framework for characterizing positive-valued data with long-range-dependent correlations (1/f noise). Using the Haar wavelet transform and a special multiplicative structure ...
  • Multifractals and Wavelets: A potential tool in Geophysics 

    Riedi, Rudolf H. (1998-01-01)
    The study of fractal quantities and structures exhibiting highly erratic features on all scales has proved to be of outstanding significance in various disciplines. While scaling phenomena are pervasive in natural and ...
  • MultiHop Communication is Order Optimal for Homogeneous Sensor Networks 

    Chakrabarti, Arnab; Sabharwal, Ashutosh; Aazhang, Behnaam (2004-04-01)
    The main goal of this paper is to show that multi-hop single-user communication achieves the per node transport capacity of O(lnN/N) in homogeneous sensor networks, making it order-optimal. Our contributions in this paper ...