Now showing items 207-226 of 1507

  • Code design for the relay channel 

    Chakrabarti, Arnab (2007)
    The design of wireless communication networks is based on the premise that networks are collections of reliable point-to-point links between communicating nodes. Such a communication model, although simple, is inefficient ...
  • Code Transformations to Improve Memory Parallelism 

    Pai, Vijay S.; Adve, Sarita V. (2000-05-20)
    Current microprocessors incorporate techniques to exploit instruction-level parallelism (ILP). However, previous work has shown that these ILP techniques are less effective in removing memory stall time than CPU time, ...
  • Code Transformations to Improve Memory Parallelism 

    Pai, Vijay S.; Adve, Sarita V. (1999-11-20)
    None
  • Coding Theoretic Approach to Image Segmentation 

    Ndili, Unoma (2001-05-20)
    Using a coding theoretic approach, we achieve unsupervised image segmentation by implementing Rissanen's concept of Minimum Description Length for estimating piecewise homogeneous regions in images. MDL offers a mathematical ...
  • Coding Theoretic Approach to Image Segmentation 

    Ndili, Unoma; Nowak, Robert David; Figueiredo, Mario (2001-10-20)
    In this paper, using a coding theoretic approach, we implement Rissanen's concept of minimum description length (MDL) for segmenting an image into piecewise homogeneous regions. Our image model is a Gaussian random field ...
  • Coding-Spreading Tradeoff for Lattice Codes 

    Khoshnevis, Ahmad (2001-04-20)
    A fixed bandwidth expansion can be achieved either by coding or spreading, while each have different effect on the resultant signal space. Coding increases both Shannon and Fourier bandwidth whereas spreading only increases ...
  • Coding-spreading tradeoff for lattice codes 

    Khoshnevis, Ahmad (2001)
    A fixed bandwidth expansion can be achieved either by coding or spreading, while each have different effect on the resultant signal space. Coding increases both Shannon and Fourier bandwidth whereas spreading only increases ...
  • Coherent Fano resonances in a plasmonic nanocluster enhance optical four-wave mixing 

    Zhang, Yu; Wen, Fangfang; Zhen, Yu-Rong; Nordlander, Peter; Halas, Naomi J. (2013)
    Plasmonic nanoclusters, an ordered assembly of coupled metallic nanoparticles, support unique spectral features known as Fano resonances due to the coupling between their subradiant and superradiant plasmon modes. Within ...
  • Coherent Image Processing using Quaternion Wavelets 

    Chan, Wai Lam; Choi, Hyeokho; Baraniuk, Richard G. (2005-08-01)
    We develop a quaternion wavelet transform (QWT) as a new multiscale analysis tool for geometric image features. The QWT is a near shift-invariant, tight frame representation whose coefficients sport a magnitude and three ...
  • Coherent Multiscale Image Processing using Quaternion Wavelets 

    Chan, Wai Lam; Choi, Hyeokho; Baraniuk, Richard G. (2006-10-01)
    The quaternion wavelet transform (QWT) is a new multiscale analysis tool for geometric image features. The QWT is a near shift-invariant tight frame representation whose coefficients sport a magnitude and three phases: ...
  • Coherent multiscale image processing using quaternion wavelets 

    Chan, Wai Lam (2006)
    This thesis develops a quaternion wavelet transform (QWT) as a new multiscale analysis tool for geometric image features. The QWT is a near shift-invariant tight frame representation whose coefficients sport a magnitude ...
  • Collective antenna effects in the terahertz and infrared response of highly aligned carbon nanotube arrays 

    Ren, L.; Zhang, Q.; Pint, C.L.; Wójcik, A.K.; Bunney, M. Jr; Arikawa, T.; Kawayama, I.; Tonouchi, M.; Hauge, R.H.; Belyanin, A.A.; Kono, J. (2013)
    We study macroscopically aligned single-wall carbon nanotube arrays with uniform lengths via polarization-dependent terahertz and infrared transmission spectroscopy. Polarization anisotropy is extreme at frequencies less ...
  • Communication Processors 

    Rajagopal, Sridhar; Cavallaro, Joseph R. (2005-07-01)
    Communication processors are processors with specific optimizations to support communication sys-tems. Communication processors exist in a wide variety of forms and can be categorized based on the communication system, ...
  • Community Driven Digital Signal Processing Laboratories in Connexions 

    Baraniuk, Richard G.; Choi, Hyeokho; Jones, Douglas L.; Potter, Lee (2004-06-01)
    The conventional textbook is largely inadequate for digital signal processing (DSP) laboratory education due to inherent factors such as a small and fragmented market and rapid hardware obsolescence. Freely available ...
  • Compact Hardware Accelerator for Functional Verification and Rapid Prototyping of 4G Wireless Communication Systems 

    Guo, Yuanbin; McCain, Dennis (2004-11-01)
    In this paper, we propose an FPGA-based hardware accelerator platform with Xilinx Virtex-II V3000 in a compact PCMCIA form factor. By partitioning the complex algorithms in the 4G simulator to the hardware accelerator, ...
  • Compact solar autoclave based on steam generation using broadband light-harvesting nanoparticles 

    Neumann, Oara; Feronti, Curtis; Neumann, Albert D.; Dong, Anjie; Schell, Kevin; Lu, Benjamin; Kim, Eric; Quinn, Mary; Thompson, Shea; Grady, Nathaniel; Nordlander, Peter; Oden, Maria; Halas, Naomi J. (2013-07-16)
    The lack of readily available sterilization processes for medicine and dentistry practices in the developing world is a major risk factor for the propagation of disease. Modern medical facilities in the developed world ...
  • A comparative study of multiple accessing schemes 

    Erkip, Elza; Aazhang, Behnaam (1997-11-20)
    We compare the performance of different accessing schemes (frequency division, time division and code division) for the uplink in a wireless communication system. We assume an additive white Gaussian noise channel with ...
  • Comparing and Combining Read Miss Clustering and Software Prefetching 

    Pai, Vijay S.; Adve, Sarita V. (2001-09-20)
    None
  • COMPARISON OF TWO NOVEL LIST SPHERE DETECTOR ALGORITHMS FOR MIMO-OFDM SYSTEMS 

    Myllylä, Markus; Silvola, Pirkka; Juntti, Markku; Cavallaro, Joseph R. (2006-09-01)
    In this paper, the complexity and performance of two novel list sphere detector (LSD) algorithms are studied and evaluated in multiple-input multiple-output orthogonal frequency division multiplexing (MIMO-OFDM) system. ...
  • Compiler Driven Architecture Design Space Exploration for DSP Workloads: A Study in Software Programmability Versus Hardware Acceleration 

    Brogioli, Michael C.; Cavallaro, Joseph R. (2009-11-01)
    Wireless communications and video kernels contain vast instruction and data level parallelism that can far outstrip programmable high performance DSPs. Hardware acceleration of these bottlenecks is commonly done at the ...