Now showing items 125-144 of 1490

  • Architecture and Algorithm for a Stochastic Soft-output MIMO Detector 

    Amiri, Kiarash; Radosavljevic, Predrag; Cavallaro, Joseph R. (2007-11-04)
    In this paper, we propose a novel architecture for a soft-output stochastic detector in multiple-input, multiple-output (MIMO) systems. The stochastic properties of this detector are studied and derived in this work, ...
  • Architecture and Algorithm for a Stochastic Soft-output MIMO Detector 

    Amiri, Kiarash; Radosavljevic, Predrag; Cavallaro, Joseph R. (2007-11-01)
    In this paper, we propose a novel architecture for a soft-output stochastic detector in multiple-input, multiple-output (MIMO) systems. The stochastic properties of this detector are studied and derived in this work, and ...
  • Architecture and algorithms for scalable mobile QoS 

    Sadeghi, Bahareh (2000)
    Supporting Quality of Service is an important objective for future mobile systems, and requires resource reservation and admission control to achieve. In this thesis, we introduce a scalable scheme to admission control ...
  • Architecture and Algorithms for Scalable Mobile QoS 

    Sadeghi, Bahareh (2000-04-20)
    We develop a simple analytical model to study the system and illustrate several key components of the approach. We formulate the problem of how to group the cells to form the virtual system as an optimization problem and ...
  • ARCHITECTURE DESIGN AND IMPLEMENTATION OF THE INCREASING RADIUS - LIST SPHERE DETECTOR ALGORITHM 

    Myllylä, Markus; Juntti, Markku; Cavallaro, Joseph R. (2009-04-01)
    A list sphere detector (LSD) is an enhancement of a sphere detector (SD) that can be used to approximate the optimal MAP detector. In this paper, we introduce a novel architecture for the increasing radius (IR)-LSD algorithm, ...
  • Architecture Design and Implementation of the Metric First List Sphere Detector Algorithm 

    Myllylä, Markus; Cavallaro, Joseph R.; Juntti, Markku (2011-05-01)
    Soft-output detection of a multiple-input–multiple-output (MIMO) signal pose a significant challenge in future wireless systems. In this paper, we introduce a soft-output modified metric first (MMF)-LSD algorithm for MIMO ...
  • Architecture for detection in MIMO wireless systems 

    Amiri, Kiarash (2007)
    In this work, we study two main classes of detectors for spatially multiplexed Multiple-input Multiple-output (MIMO) systems. For the first group, i.e. hard-decision detectors, we study sphere detectors, and propose novel ...
  • 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 ...
  • 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 ...
  • 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)
  • 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 ...