Now showing items 247-266 of 1490

  • Connexions: DSP Education for a Networked World 

    Baraniuk, Richard G. (2002-05-01)
    Connexions is a new approach to authoring, teaching, and learning that aims to fully exploit modern information technology. Available free of charge to anyone under open-content and open-source licenses, Connexions offers ...
  • Constellations for Imperfect Channel State Information at the Receiver 

    Borran, Mohammad Jaber; Sabharwal, Ashutosh; Aazhang, Behnaam (2002-10-20)
    We consider the problem of digital communication in a Rayleigh flat fading environment using a multiple antenna system. We assume that the transmitter doesn't know the channel coefficients, and that the receiver has only ...
  • Constrained FIR Filter Design for 2-band Filter Banks and Orthonormal Wavelets 

    Markus, Lang; Selesnick, Ivan W.; Odegard, Jan E.; Burrus, C. Sidney (1994-10-20)
    2-band paraunitary FIR filter banks can be used to generate a multiresolution analysis with compactly supported orthonormal (ON) wavelets. The filter design problem is formulated and solved (a) as a constrained L<sub>Â â ...
  • Constrained Least Square Design of FIR Filters Without Specified Transition Bands 

    Selesnick, Ivan W.; Lang, Markus; Burrus, C. Sidney (1995-01-15)
    We consider the design of digital filters and discuss the inclusion of explicitly specified transition bands in the frequency domain design of FIR filters. We put forth the notion that explicitly specified transition bands ...
  • Constrained Least Square Design of FIR Filters Without Specified Transition Bands 

    Selesnick, Ivan W.; Lang, Markus; Burrus, C. Sidney (1996-01-15)
    We consider the design of digital filters and discuss the inclusion of explicitly specified transition bands in the frequency domain design of FIR filters. We put forth the notion that explicitly specified transition bands ...
  • Contextual Hidden Markov Models for Wavelet-domain Signal Processing 

    Crouse, Matthew; Baraniuk, Richard G. (1997-11-01)
    Wavelet-domain hidden Markov models (HMMs) provide a powerful new approach for statistical modeling and processing of wavelet coefficients. In addition to characterizing the statistics of individual wavelet coefficients, ...
  • Contraction, Smoothness, and Low-Pass Filtering 

    Khojastepour, Mohammad; Aazhang, Behnaam; Baraniuk, Richard G. (2004-05-01)
    We introduce a generalized definition for "low-pass" filters that covers time-varying and nonlinear systems under the same umbrella. We show that the qualitative concept of signal smoothing can be made precise through the ...
  • Controlling False Alarms with Support Vector Machines 

    Davenport, Mark A.; Baraniuk, Richard G.; Scott, Clayton D. (2006-05-01)
    We study the problem of designing support vector classifiers with respect to a Neyman-Pearson criterion. Specifically, given a user-specified level alpha, 0 < alpha < 1, how can we ensure a false alarm rate no greater than ...
  • Cooperative communication over two-way channels 

    Steger, Christopher B. (2008)
    In this thesis, we define and analyze communication scenarios in which the source and destination cooperate across noncoherent two-way fading channels. As in practical communication systems, we constrain the bandwidth and ...
  • Cooperative Communications in the Fading Channel 

    Ahmed, Nasir; Aazhang, Behnaam (2005-03-01)
    Cooperative coding is a communication paradigm that pools distributed resources of different nodes in a network, such that the nodes act like a collaborative system instead of greedy adversarial participants. Cooperation ...
  • COOPERATIVE COMMUNICATIONS: Fundamental Limits and Practical Implementation 

    Chakrabarti, Arnab; Sabharwal, Ashutosh; Aazhang, Behnaam (2006-01-01)
    This chapter summarizes theoretically achievable gains and the construction of practical codes for user-cooperation. Most of these results relate to the relay channel, which is a three-terminal channel that captures the ...
  • Cooperative Partial Detection for MIMO Relay Networks 

    Amiri, Kiarash (2011)
    Cooperative communication has recently re-emerged as a possible paradigm shift to realize the promises of the ever increasing wireless communication market; however, there have been few, if any, studies to translate ...
  • Cooperative Partial Detection for MIMO Relay Networks 

    Amiri, Kiarash (2011)
    Cooperative communication has recently re-emerged as a possible paradigm shift to realize the promises of the ever increasing wireless communication market; how- ever, there have been few, if any, studies to translate ...
  • Cooperative Partial Detection Using MIMO Relays 

    Amiri, Kiarash; Wu, Michael; Cavallaro, Joseph R.; Lilleberg, Jorma (2011-10-01)
    Using multiple-input multiple-output (MIMO) relays in cooperative communication improves the data rate and reliability of the communication. The MIMO transmission, however, requires considerable resources for the detection ...
  • Coordination and Interference in 802.11 Networks: Inference, Analysis and Mitigation 

    Magistretti, Eugenio (2013-09-16)
    In the last decade, 802.11 wireless devices data-rates have increased by three orders of magnitude, while communications experiencing low throughput are still largely present. Such throughput loss is a fundamental problem ...
  • CORDIC Arithmetic for an SVD Processor 

    Cavallaro, Joseph R.; Luk, Franklin T. (1987-05-01)
    Arithmetic issues in the calculation of the Singular Value Decomposition (SVD) are discussed. Traditional algorithms using hardware division and square root are replaced with the special purpose CORDIC algorithms for ...
  • CORDIC Arithmetic for an SVD Processor 

    Cavallaro, Joseph R.; Luk, Franklin T. (1988-06-20)
    Arithmetic issues in the calculation of the Singular Value Decomposition (SVD) are discussed. Traditional algorithms using hardware division and square root are replaced with the special purpose CORDIC algorithms for ...
  • A CORDIC Processor Array for the SVD of a Complex Matrix 

    Cavallaro, Joseph R.; Elster, Anne C. (1991)
    Matrix factorizations are important in many real-time signal processing applications. In order to improve the performance of these algorithms, special-purpose VLSI processor arrays are being developed. Recently, the ...