Now showing items 164-183 of 1946

    • An Architecture for Distributed Wavelet Analysis and Processing in Sensor Networks 

      Wagner, Raymond; Baraniuk, Richard G.; Du, Shu; Johnson, David B.; Cohen, Albert (2006-04-01)
      Distributed wavelet processing within sensor networks holds promise for reducing communication energy and wireless bandwidth usage at sensor nodes. Local collaboration among nodes de-correlates measurements, yielding a ...
    • Architectures for a CORDIC SVD Processor 

      Cavallaro, Joseph R.; Luk, Franklin T. (1986-08-21)
      Architectures for systolic array processor elements for calculating the singular value decomposition (SVD) are proposed. These special purpose VLSI structures incorporate the coordinate rotation (CORDIC) algorithms to ...
    • Architectures for Cognitive Radio Testbeds and Demonstrators – An Overview 

      Gustafsson, Oscar; Amiri, Kiarash; Andersson, Dennis; Blad, Anton; Bonner, Christian; Cavallaro, Joseph R.; Declerck, Jeroen; Dejonghe, Antoine; Eliardsson, Patrik; Glasse, Miguel; Hayar, Aawatif; Hollevoet, Lieven; Hunter, Chris; Joshi, Madhura; Kaltenberger, Florian; Knopp, Raymond; Le, Khanh; Miljanic, Zoran; Murphy, Patrick; Naessens, Frederik; Nikaein, Navid; Nussbaum, Dominique; Pacalet, Renaud; Raghavan, Praveen; Sabharwal, Ashutosh; Sarode, Onkar; Spasojevic, Predrag; Sun, Yang; Tullberg, Hugo M.; Vander Aa, Tom; Van der Perre, Liesbet; Wetterwald, Michelle; Wu, Michael (2010-06-01)
      Wireless communication standards are developed at an ever-increasing rate of pace, and significant amounts of effort is put into research for new communication methods and concepts. On the physical layer, such topics include ...
    • Architectures for Heterogeneous Multi-Tier Networks 

      Cavallaro, Joseph R. (2002-01-15)
      Next-generation wireless computing platforms will contain flexible communications capabilites. At Rice University, the Rice Everywhere NEtwork (RENE) project is investigating a multi-standard, multi-tier integration of ...
    • Argos: Practical Base Stations for Large-scale Beamforming 

      Shepard, Clayton (2012-09-05)
      MU-MIMO theory predicts manyfold capacity gains by leveraging many antennas (e.g. M >> 10) on wireless base stations to serve many users simultaneously through multi-user beamforming (MUBF). However, realizing such a ...
    • Arithmetic Acceleration Techniques for Wireless Communication Receivers 

      Das, Suman; Rajagopal, Sridhar; Sengupta, Chaitali; Cavallaro, Joseph R. (1999-10-20)
      We develop techniques to accelerate the implementation of the next generation wireless communication algorithms in hardware. We discuss an implementation of a key computationally intensive baseband algorithm for joint ...
    • ASIC Implementation Comparison of SIC and LSD Receivers for MIMO-OFDM 

      Ketonen, Johanna; Myllylä, Markus; Juntti, Markku; Cavallaro, Joseph R. (2008-10-01)
      MIMO-OFDM receivers with horizontal encoding are considered in this paper. The successive interference cancellation (SIC) algorithm is compared to the K-best list sphere detector (LSD). A modification to the K-best LSD ...
    • ASIP Architecture for Future Wireless Systems: Flexibility and Customization 

      Cavallaro, Joseph R.; Radosavljevic, Predrag (2004-06-01)
      Efficiency and flexibility are crucial features of the processors in the next generation of wireless cellular systems. Processors need to be efficient in order to satisfy real-time requirements for very demanding algorithms ...
    • ASIP Architecture Implementation of Channel Equalization Algorithms for MIMO Systems in WCDMA Downlink 

      Radosavljevic, Predrag; Cavallaro, Joseph R.; de Baynast, Alexandre (2004-09-01)
      This paper presents a customized and flexible hardware implementation of linear iterative channel equalization algorithms for WCDMA downlink transmission in 3G wireless system with multiple transmit and receive antennas ...
    • ASP: Adaptive Online Parallel Disk Scheduling 

      Kallahalla, Mahesh; Varman, Peter J. (1999)
      In this work we address the problems of prefetching and I/O scheduling for read-once reference strings in a parallel I/O system. We use the standard parallel disk model with D disks a shared I/O bu er of sizeM. We ...
    • Assessing the Spectrum of International Undergraduate Engineering Educational Experiences 

      Besterfield-Sacre, M.E.; Ragusa, G.; Matherly, C.A.; Phillips, S.R.; Shuman, L.J.; Howard, L.J. (2013)
    • Asymmetric excitation profiles in the resonance Raman response of armchair carbon nanotubes 

      Hároz, Erik H.; Duque, Juan G.; Barros, Eduardo B.; Telg, Hagen; Simpson, Jeffrey R.; Walker, Angela R. Hight; Khripin, Constantine Y.; Fagan, Jeffrey A.; Tu, Xiaomin; Zheng, Ming; Kono, Junichiro; Doorn, Stephen K. (2015)
      We performed tunable resonance Raman spectroscopy on samples highly enriched in the (5,5), (6,6), (7,7), and (8,8) armchair structures of metallic single-wall carbon nanotubes. We present Raman excitation profiles (REPs) ...
    • Asymptotic Performance of Transmit Diversity via OFDM for Multipath Channels 

      Ahmed, Nadeem; Baraniuk, Richard G. (2002-11-01)
      Many wireless systems exploit transmit diversity for more reliable detection of signals at the receiver. To accomplish this, coding is spread across multiple transmit antennas. An example of this is the well known "Alamouti ...
    • Asymptotic rates of the information transfer ratio 

      Sinanovic, Sinan; Johnson, Don (2002-05-20)
      Information processing is performed when a system preserves aspects of the input related to what the input represents while it removes other aspects. To describe a system's information processing capability, input and ...
    • Asynchronous bipolar-equivalent optical CDMA 

      Dillon, Keith James (1997)
      We analyze the use of the bipolar-equivalent coding method in a incoherent fiber optic time-encoded CDMA communication system in an attempt to emulate the behavior of a coherent bipolar system. Specifically, we consider ...
    • Atomic-level investigation of fluorinated single-wall carbon nanotubes 

      Takhar, Dharmpal (2005)
      There is a great deal of interest in the functionalization, in particular fluorination, of single-wall carbon nanotubes (SWNTs) for the purposes of solvation and subsequent chemical reaction. Towards this end, this thesis ...
    • Au Nanomatryoshkas as Efficient Near-Infrared Photothermal Transducers for Cancer Treatment: Benchmarking against Nanoshells 

      Ayala-Orozco, Ciceron; Urban, Cordula; Knight, Mark W.; Urban, Alexander Skyrme; Neumann, Oara; Bishnoi, Sandra W.; Mukherjee, Shaunak; Goodman, Amanda M.; Charron, Heather; Mitchell, Tamika; Shea, Martin; Roy, Ronita; Nanda, Sarmistha; Schiff, Rachel; Halas, Naomi J.; Joshi, Amit (2014)
      Au nanoparticles with plasmon resonances in the near-infrared (NIR) region of the spectrum efficiently convert light into heat, a property useful for the photothermal ablation of cancerous tumors subsequent to nanoparticle ...
    • Augmenting Wireless Security Using Zero-Forcing Beamforming 

      Anand, Narendra (2011)
      We present the design and experimental evaluation of Simultaneous TRansmissions with Orthogonally Blinded Eavesdroppers (STROBE). STROBE is a cross-layer approach that exploits the multi-stream capabilities of existing ...
    • Automated Evaluation of Critical Features in VLSI Layouts Based on Photolithographic Simulations 

      Sengupta, Chaitali; Cavallaro, Joseph R.; Wilson, William L.; Tittel, Frank K. (1997-11-01)
      In this paper, we address the problem of identifying and evaluating “critical features” in an integrated circuit (IC) layout. The “critical features” (e.g., nested elbows and open ends) are areas in the layout that are ...