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Anna Scaglione

  1. GPS Signal Acquisition via Compressive Multichannel Sampling.

    Ср, 07/20/2011 - 15:01 — SomNambul
    Authors: Yonina C. Eldar, Anna Scaglione, Xiao Li, Andrea Rueetschi
    Subjects: Information Theory
    Abstract

    In this paper, we propose an efficient acquisition scheme for GPS receivers.
    It is shown that GPS signals can be effectively sampled and detected using a
    bank of randomized correlators with much fewer chip-matched filters than those
    used in existing GPS signal acquisition algorithms. The latter use correlations
    with all possible shifted replicas of the satellite-specific C/A code and an
    exhaustive search for peaking signals over the delay-Doppler space.

  2. STiCMAC: A MAC Protocol for Robust Space-Time Coding in Cooperative Wireless LANs.

    Пнд, 05/23/2011 - 15:01 — SomNambul
    Authors: Elza Erkip, Anna Scaglione, Pei Liu, Chun Nie, Thanasis Korakis, Shivendra Panwar, Francesco Verde
    Subjects: Networking and Internet Architecture
    Abstract

    Relay-assisted cooperative wireless communication has been shown to have
    significant performance gains over the legacy direct transmission scheme.
    Compared with single relay based cooperation schemes, utilizing multiple relays
    further improves the reliability and rate of transmissions. Distributed
    space-time coding (DSTC), as one of the schemes to utilize multiple relays,
    requires tight coordination between relays and does not perform well in a
    distributed environment with mobility.

  3. Gossip Algorithms for Distributed Signal Processing.

    Втр, 03/30/2010 - 15:02 — SomNambul
    Authors: Alexandros G. Dimakis, Soummya Kar, Michael G. Rabbat, Jose M.F. Moura, Anna Scaglione
    Subjects: and Cluster Computing, Distributed, Parallel
    Abstract

    Gossip algorithms are attractive for in-network processing in sensor networks
    because they do not require any specialized routing, there is no bottleneck or
    single point of failure, and they are robust to unreliable wireless network
    conditions. Recently, there has been a surge of activity in the computer
    science, control, signal processing, and information theory communities,
    developing faster and more robust gossip algorithms and deriving theoretical
    performance guarantees. This article presents an overview of recent work in the
    area.

Math-arch

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