Now showing items 152-171 of 1495

  • A Bandwidth-Efficient Architecture for Media Processing 

    Rixner, Scott; Dally, William J.; Kapasi, Ujval J.; Khailany, Brucek; Lopez-Lagunas, Abelardo; Mattson, Peter; Owens, John D. (1998-11-20)
    Media applications are characterized by large amounts of available parallelism, little data reuse, and a high computation to memory access ratio. While these characteristics are poorly matched to conventional microprocessor ...
  • Baseband Architecture Design for Future Wireless Base-Station Receivers 

    Rajagopal, Sridhar (2000-05-20)
    This thesis demonstrates designing efficient algorithms and architectures to meet the real-time requirements of future wireless base-station receivers. Next generation receivers require orders-of-magnitude performance ...
  • Baseband architecture design for future wireless base-station receivers 

    Rajagopal, Sridhar (2000)
    This thesis demonstrates the use of designing efficient algorithms and architectures to meet the real-time requirements of future wireless base-station receivers. Next generation receivers will require orders-of-magnitude ...
  • Baseband Signal Compression in Wireless Base Stations 

    Vosoughi, Aida; Wu, Michael; Cavallaro, Joseph R. (2012-12-01)
    To comply with the evolving wireless standards, base stations must provide greater data rates over the serial data link between base station processor and RF unit. This link is especially important in distributed antenna ...
  • Basics of information processing 

    Johnson, Don (2002-01-20)
    Basic probability theory, statistical signal processing and information theory, and inter-relationships among these disciplines form the foundations of a theory of information processing. Examples are drawn from point-process ...
  • Bayesian Blind PARAFAC Recievers forDS-CDMA Systems 

    de Baynast, Alexandre; Declercq, David; De Lathauwer, Lieven; Aazhang, Behnaam (2003-10-01)
    In this paper an original Bayesian approach for blind detec-tion for Code Division Multiple Access (CDMA) Systems in presence of spatial diversity at the receiver is developed. In the noiseless context, the blind ...
  • A Bayesian Multiscale Approach to Joint Image Restoration and Edge Detection 

    Wan, Yi; Nowak, Robert David (1999-07-20)
    This paper presents a novel wavelet-based method for simultaneous image restoration and edge detection. The Bayesian framework developed here is general enough to treat a wide class of linear inverse problems involving ...
  • Bayesian Tree-Structured Image Modeling 

    Romberg, Justin; Choi, Hyeokho; Baraniuk, Richard G. (2000-04-01)
    Wavelet-domain hidden Markov models have proven to be useful tools for statistical signal and image processing. The hidden Markov tree (HMT) model captures the key features of the joint statistics of the wavelet coefficients ...
  • Bayesian Tree-Structured Image Modeling using Wavelet-domain Hidden Markov Models 

    Romberg, Justin; Choi, Hyeokho; Baraniuk, Richard G. (2001-07-01)
    Wavelet-domain hidden Markov models have proven to be useful tools for statistical signal and image processing. The hidden Markov tree (HMT) model captures the key features of the joint probability density of the wavelet ...
  • Bayesian Tree-Structured Image Modeling using Wavelet-domain Hidden Markov Models 

    Romberg, Justin; Choi, Hyeokho; Baraniuk, Richard G. (1999-07-20)
    Wavelet-domain hidden Markov models have proven to be useful tools for statistical signal and image processing. The hidden Markov tree (HMT) model captures the key features of the joint probability density of the wavelet ...
  • Bayesian Wavelet Domain Image Modeling using Hidden Markov Trees 

    Romberg, Justin; Choi, Hyeokho; Baraniuk, Richard G. (1999-10-01)
    Wavelet-domain hidden Markov models have proven to be useful tools for statiscal signal and image processing. The hidden Markov tree (HMT) model captures the key features o teh join statistics of the wavelet coefficients ...
  • Beamformer Design with Feedback Rate Constraints : Criteria and Constructions 

    Mukkavilli, Krishna Kiran; Sabharwal, Ashutosh; Erkip, Elza; Aazhang, Behnaam (2003-07-20)
    In this work, we provide a geometrical framework for the analysis and design of beamformer codebooks with finite number of beamformer vectors. We present a design criterion for good beamfomer codebooks and show the equivalence ...
  • Beamforming in MIMO-OFDM systems: Codebook design for efficient implementation 

    Duarte, Melissa (2007)
    Quantized feedback in multiple antenna systems has potential to increase throughput and/or reduce probability of outage. In this work, we present a method to generate quantization codebooks tailored for efficient implementation ...
  • BeamSwitch: System solution for energy-efficient directional communication on mobile devices 

    Dumanli, Hasan Huseyin (2010)
    Directional communication has the potential to improve both the energy efficiency of wireless communication without sacrificing its quality. We present a system solution, BeamSwitch, for directional communication on mobile ...
  • Benefits of DSP Extra-curricular Activities: A Look at the Texas Instruments DSP and Analog Challenge 

    Robinson, Torrence; Peleg, Nimrod; Rhodes, Jacob; Frantz, Patrick (2002-05-20)
    This paper describes the benefits associated with student and faculty participation in DSP design-related activities that fall outside of the usual university course requirements. It will also describe industry's role in ...
  • BER of optical communication system using fiber source 

    Nguyen, Lim; Aazhang, Behnaam; Young, James F. (1995-11-20)
    We analyze the bit-error rate (BER) of an optical communication system using the superfluorescent fiber source (SFS). The counting statistics of thermal light give improved performance relative to the Gaussian statistics ...
  • Beyond Interference Avoidance: Distributed Sun-network Scheduling in Wireless Networks with Local Views 

    Santacruz, Pedro (2013-09-16)
    In most wireless networks, nodes have only limited local information about the state of the network, which includes connectivity and channel state information. With limited local information about the network, each node’s ...
  • Beyond Time Frequency Analysis: Energy Densities in One and Many Dimensions 

    Baraniuk, Richard G. (1998-09-01)
    Given a unitary operator A representing a physical quantity of interest, we employ concepts from group representation theory to define two natural signal energy densities for A. The first is invariant to A and proves ...
  • Beyond Time Frequency Analysis: Energy Densities in One and Many Dimensions 

    Baraniuk, Richard G. (1994-04-01)
    Given a unitary operator <i>A</i> representing a physical quantity of interest, we employ concepts from group representation theory to define two natural signal energy densities for <i>A</i>. The first is invariant to ...
  • Bit Interleaved Space-Time Codes 

    Muharemovic, Tarik; Gatherer, Alan; Ebel, Will; Srihosour, Srinath; Hocevar , Dale; Huang, Everest (2001-09-20)
    We develop a new construction criterion for BSPK space-time codes which simultaneously reflects both "coding" and "diversity" advantage. Furthermore, we propose a new method of improving the performance of space-time ...