Now showing items 565-584 of 1803

  • Feedback in multiple antenna systems: Bounds, design criterion and construction 

    Mukkavilli, Krishna Kiran (2004)
    In this thesis, we study wireless communication systems equipped with multiple antennas at the transmitter and the receiver. In particular, we investigate the design and performance analysis of transmission schemes when ...
  • Fermi-edge superfluorescence from a quantum-degenerate electron-hole gas 

    Kim, Ji-Hee; Noe, G. Timothy II; McGill, Stephen A.; Wang, Yongrui; Wojcik, Aleksander K.; Belyanin, Alexey A.; Kono, Junichiro (2013)
    Nonequilibrium can be a source of order. This rather counterintuitive statement has been proven to be true through a variety of fluctuation-driven, self-organization behaviors exhibited by out-of-equilibrium, many-body ...
  • FFT-Accelerated Iterative MIMO Chip Equalizer Architecture For CDMA Downlink 

    Guo, Yuanbin; McCain, Dennis; Cavallaro, Joseph R. (2005-03-01)
    In this paper, we present a novel FFT-accelerated iterative Linear MMSE chip equalizer in the MIMO CDMA downlink receiver. The reversed form time-domain matrix multiplication in the Conjugate Gradient iteration is accelerated ...
  • Fibulin-2 Is a Driver of Malignant Progression in Lung Adenocarcinoma 

    Baird, Brandi N.; Schliekelman, Mark J.; Ahn, Young-Ho; Chen, Yulong; Roybal, Jonathon D.; Gill, Bartley J.; Mishra, Dhruva K.; Erez, Baruch; O’Reilly, Michael; Yang, Yanan; Patel, Mayuri; Liu, Xin; Thilaganathan, Nishan; Larina, Irina V.; Dickinson, Mary E.; West, Jennifer L.; Gibbons, Don L.; Liu, Diane D.; Kim, Min P.; Hicks, John M.; Wistuba, Ignacio I.; Hanash, Samir M.; Kurie, Jonathan M. (2013-06-10)
    The extracellular matrix of epithelial tumors undergoes structural remodeling during periods of uncontrolled growth, creating regional heterogeneity and torsional stress. How matrix integrity is maintained in the face ...
  • Filtering Deterministic Layer Effects in Imaging 

    Borcea, L.; del Cueto, F. Gonzalez; Papanicolaou, G.; Tsogka, C. (2012)
    Sensor array imaging arises in applications such as nondestructive evaluation of materials with ultrasonic waves, seismic exploration, and radar. The sensors probe a medium with signals and record the resulting echoes, ...
  • Finite Backlog Effects on Downlink Scheduling 

    Ahmed, Nasir; Khojastepour, Mohammad; Sabharwal, Ashutosh; Aazhang, Behnaam (2003-11-20)
    In a multi-user downlink system, the use of channel estimates in the scheduling process can significantly improve the spectral efficiency. Recent work has shown that from a sum rate capacity standpoint, and assuming infinite ...
  • Finite element analysis of the use of temperature feedback for control of laser coagulation in biological tissue 

    Glenn, Tami Neal (1994)
    Study of thermal damage processes in laser irradiated tissue can provide further insight into the determination of optimal coagulation procedures. Arrhenius rate thermal damage processes are sensitive to tissue damage ...
  • Finite Memory-length Linear Multiuser detection for Asyncchronous Communications 

    Juntti, Markku J.; Aazhang, Behnaam (1997-05-20)
    Decorrelating, linear, minimum mean-squared error (LMMSE), and noise-whitening multiuser detectors for code-division multiple-access systems (CDMA) are ideally infinite memory-length (referred to as IIR) detectors. To ...
  • Finite memory-length linear multiuser detection for asynchronous CDMA communications 

    Juntti, Markku J.; Aazhang, Behnaam (1997-10-20)
    Decorrelating, linear, minimum mean-squared error (LMMSE), and noise-whitening multiuser detectors for code-division multiple-access systems (CDMA) are ideally infinite memory-length (referred to as IIR) detectors. To ...
  • Finite Rate Feedback Design for Multiple Transmit Antennas 

    Mukkavilli, Krishna Kiran; Sabharwal, Ashutosh; Aazhang, Behnaam (2002-10-20)
    Many practical systems employ a feedback channel to convey the channel state information to the transmitter.The capacity of the feedback channels is usually limited to a few bits per frame. We design feedback based ...
  • Fixed Point Error Analysis Of Multiuser Detection and Synchronization Algorithms For CDMA Communication Systems 

    Sengupta, Chaitali; Das, Suman; Cavallaro, Joseph R.; Aazhang, Behnaam (1998-04-20)
    Conventional correlation based single-user techniques for Direct Sequence Code Division Multiple Access (DS-CDMA) wireless communication systems are susceptible to performance degradation due to interference from other ...
  • Flex-Sphere: An FPGA Configurable Sort-Free Sphere Detector For Multi-user MIMO Wireless Systems 

    Amiri, Kiarash; Dick, Chris; Rao, Raghu; Cavallaro, Joseph R. (2008-10-01)
    Spatial division multiplexing (SDM) in MIMO technology significantly increases the spectral efficiency, and hence capacity, of a wireless communication system: it is a core component of the next generation wireless systems, ...
  • A Flexible and Efficient Application Programming Interface (API) for a Customizable Proxy Cache 

    Pai, Vivek S.; Cox, Alan; Pai, Vijay S.; Zwaenepoel, Willy (2003-03-20)
    This paper describes the design, implementation, and performance of a simple yet powerful Application Programming Interface (API) for providing extended services in a proxy cache. This API facilitates the development of ...
  • A Flexible LDPC/Turbo Decoder Architecture 

    Sun, Yang; Cavallaro, Joseph R. (2011-07-01)
    Low-density parity-check (LDPC) codes and convolutional Turbo codes are two of the most powerful error correcting codes that are widely used in modern communication systems. In a multi-mode baseband receiver, both LDPC ...
  • Flexible N-Way MIMO Detector on GPU 

    Wu, Michael; Yin, Bei; Cavallaro, Joseph R. (2012-10-17)
    This paper proposes a flexible Multiple-Input Multiple-Output (MIMO) detector on graphics processing units (GPU). MIMO detection is a key technology in broadband wireless system such as LTE,WiMAX, and 802.11n. Existing ...
  • Flexible Wavelet Transforms Using Lifting 

    Claypoole, Roger L.; Baraniuk, Richard G. (1998-09-01)
    We introduce and discuss biorthogonal wavelet transforms using the lifting construction. The lifting construction exploits a spatial-domain, prediction-error interpretation of the wavelet transform and provides a powerful ...
  • Floating-Point CORDIC for Matrix Computations 

    Cavallaro, Joseph R.; Luk, Franklin T. (1988-10-01)
    The CORDIC algorithms provide a VLSI hardware technique for computing the inverse tangents and vector rotations needed by many matrix decomposition algorithms. Although normally stated for fixed-point arithmetic, the CORDIC ...
  • Fluorinated Graphene Oxide: a New Multimodal Material for Biological Applications 

    Romero-Aburto, Rebeca; Narayanan, Tharangattu N.; Nagaoka, Yutaka; Hasumura, Takashi; Mitcham, Trevor M.; Fukuda, Takahiro; Cox, Paris J.; Bouchard, Richard R.; Maekawa, Toru; Kumar, Sakthi; Torti, Suzy V.; Mani, Sendurai A.; Ajayan, Pulickel M. (2013)
    Fluorinated graphene oxide (FGO) is reported for the first time as a magnetically responsive drug carrier that can serve as a MRI and photoacoustic contrast agent, under pre-clinical settings, as well as a photothermal ...
  • Formation of functional gap junctions in amniotic fluid-derived stem cells induced by transmembrane co-culture with neonatal rat cardiomyocytes 

    Connell, Jennifer Petsche; Augustini, Emily; Moise, Kenneth J. Jr.; Johnson, Anthony; Jacot, Jeffrey G. (2013)
    Amniotic fluid-derived stem cells (AFSC) have been reported to differentiate into cardiomyocyte-like cells and form gap junctions when directly mixed and cultured with neonatal rat ventricular myocytes (NRVM). This study ...
  • FORWARD AND INVERSE MODELS IN ELECTRONEUROLOGY (SPINAL STIMULATION, NEUROGRAPHY, CIRCULAR LIMB, NEUROLOGY, ELECTROPHYSIOLOGY) 

    WILSON, OWEN BLAKE (1985)
    Understanding the behavior of electric fields in animal tissues is essential to a number of clinical topics, including electric stimulation of nerves or muscles, and sensing of nerve potentials for diagnostic purposes. ...