Now showing items 1359-1378 of 2128

    • On the impact of receiver quantization on the performance of wireless communication systems 

      Middleton, Gareth B. (2007)
      The overall objective of this dissertation was to determine the influence of footwear sole hardness on slip initiation and falls. To achieve this goal, three separate studies were undertaken. The purpose of the first study ...
    • On the impact of variability on the buffer dynamics in IP networks 

      Joo, Youngmi; Ribeiro, Vinay Joseph; Feldmann, Anja; Gilbert, Anna; Willinger, Walter (1999-09-20)
      The main objective of this paper is to demonstrate in the context of a simple TCP/IP-based network that depending on the underlying assumptions about the inherent nature of the variability of network traffic, very different ...
    • On the Moments of the Scaling Function psi_0 

      Gopinath, Ramesh A.; Burrus, C. Sidney (1992-01-15)
      This paper derives relationships between the moments of the scaling function psi_0(t) associated with multiplicity M, K-regular, compactly supported, orthonormal wavelet bases [6, 5] that are extensions of the multiplicity ...
    • On the Moments of the Scaling Function psi_0 

      Gopinath, Ramesh A.; Burrus, C. Sidney (1992-05-20)
      This paper derives relationships between the moments of the scaling function psi<sub>0</sub>(t) associated with multiplicity M, K-regular, compactly supported, orthonormal wavelet bases [6, 5] that are extensions of the ...
    • On the outage proabability of a class of signaling schemes for multiple antennas 

      Mukkavilli, Krishna Kiran; Muharemovic, Tarik; Sabharwal, Ashutosh; Aazhang, Behnaam (2002-07-20)
      In this work, we investigate large SNR behavior of the outage probability for a class of signaling schemes designed for flat fading Rayleigh multiple antennas systems. Outage probability is important in a practical system ...
    • On the Outage Theorem and its Converse for Discrete Memoryless Channels 

      Muharemovic, Tarik; Aazhang, Behnaam (2002-01-15)
      We prove both the outage theorem and its converse for block fading discrete memoryless channel. If <i>P<sub>out</sub></i> is the outage probability for the rate <i>R</i> then any transmission rate below <i>R</i> together ...
    • On the Overhead-Delay Tradeoff in Carrier Sense Collision Channel 

      Khoshnevis, Ahmad; Sabharwal, Ashutosh (2005-09-01)
      In this paper, we study the impact of delay constraints on the throughput of a queued multiple-access system. We model the channel as a collision channel with \emph{carrier sense} to capture the inherent information sharing ...
    • On The Problem of Simultaneous Encoding of Magnitude and Location Information 

      Castro, Rui; Wakin, Michael; Orchard, Michael (2002-11-20)
      Modern image coders balance bitrate used for encoding the location of signicant transform coefficients, and bitrate used for coding their values. The importance of balancing location and value information in practical ...
    • On the Reproducibility of TCGA Ovarian Cancer MicroRNA Profiles 

      Wan, Ying-Wooi; Mach, Claire M.; Allen, Genevera I.; Anderson, Matthew L.; Liu, Zhandong (2014-01-29)
      Dysregulated microRNA (miRNA) expression is a well-established feature of human cancer. However, the role of specific miRNAs in determining cancer outcomes remains unclear. Using Level 3 expression data from the Cancer ...

      BHATTACHARYYA, S. P. (1971)
    • On the use of inexact, pruned hardware in atmospheric modelling 

      Düben, Peter D.; Joven, Jaume; Lingamneni, Avinash; McNamara, Hugh; De Micheli, Giovanni; Palem, Krishna V.; Palmer, T.N. (2014)
      Inexact hardware design, which advocates trading the accuracy of computations in exchange for significant savings in area, power and/or performance of computing hardware, has received increasing prominence in several ...
    • On Turbo-Schedules for LDPC Decoding 

      de Baynast, Alexandre; Radosavljevic, Predrag; Sabharwal, Ashutosh; Cavallaro, Joseph R. (2006-05-01)
      The convergence rate of LDPC decoding is comparatively slower than turbo code decoding: 25 LDPC iterations versus 8-10 iterations for turbo codes. Recently, Mansour proposed a â turbo-scheduleâ to improve the convergence rate ...
    • On-line Arithmetic for Detection in Digital Communication Receivers 

      Rajagopal, Sridhar; Cavallaro, Joseph R. (2001-06-20)
      This paper demonstrates the advantages of using on-line arithmetic for traditional and advanced detection algorithms for communication systems. Detection is one of the core computationally-intensive physical layer operations ...
    • An On-Line Signal-Dependent Time-Frequency Representation 

      Jones, Douglas L.; Baraniuk, Richard G. (1992-09-01)
      No Abstract.
    • Once and For All 

      Kupferman, Orna; Pnueli, Amir; Vardi, Moshe Y. (2012)
      It has long been known that past-time operators add no expressive power to linear temporal logics. In this paper, we consider the extension of branching temporal logics with past-time operators. Two possible views regarding ...
    • Open-Content Signal Processing Laboratories in Connexions 

      Appadwedula, Swaroop; Baraniuk, Richard G. (2003-04-01)
      Due to inherent factors such as a small and fragmented market and rapid hardware obsolescence, the conventional textbook is inadequate for DSP laboratory education. Freely available open-content materials that enable and ...
    • Opening Education 

      Baraniuk, Richard G. (2013)
      The open education (OE) movement provides new mechanisms to democratize education by interconnecting ideas, learners, and instructors in new kinds of constructs that replace traditional textbooks, courses, and certifications.
    • OpenMP on networks of workstations 

      Lu, Honghui (2001)
      The OpenMP Application Programming Interface (API) is an emerging standard for parallel programming on shared memory architectures. Networks of workstations (NOWs) are attractive parallel programming platforms because of ...
    • Operating principles of Notch–Delta–Jagged module of cell–cell communication 

      Jolly, Mohit Kumar; Boareto, Marcelo; Lu, Mingyang; Onuchic, José N.; Clementi, Cecilia; Ben-Jacob, Eshel (2015)
      Notch pathway is an evolutionarily conserved cell–cell communication mechanism governing cell-fate during development and tumor progression. It is activated when Notch receptor of one cell binds to either of its ligand—Delta ...
    • Opitmal Phase Kernels for Time-Frequency Analysis 

      Wisur-Olsen, Fridtjof; Baraniuk, Richard G. (1996-05-01)
      We consider the design of kernels for time-frequency distributions through the phase, rather than amplitude, response. While phase kernels do not attenuate troublesome cross-components, they can translate them in the ...