Now showing items 1-5 of 5

  • Cramer-Rao bounds in the estimation of time of arrival in fading channels 

    René Jativa, E.; Vidal Manzano, José (2018-03-16)
    Article
    Open Access
    This paper computes the Cramer-Rao bounds for the time of arrival estimation in a multipath Rice and Rayleigh fading scenario, conditioned to the previous estimation of a set of propagation channels, since these channel ...
  • Fast computation of Cramer-Rao Bounds for TOA – An application to network-based positioning simulations 

    Garzon, Esteban; Valdiviezo, Santiago; René Jativa, E.; Vidal Manzano, José (Institute of Electrical and Electronics Engineers (IEEE), 2016)
    Conference report
    Restricted access - publisher's policy
    As part of a larger scope work that studies network-based positioning, that employs timing measures, this article proposes a methodology to add Cramer-Rao Bounds (CRBs) information to the propagation model. Moreover, it ...
  • NLOS mitigation based on TOA for mobile subscriber positioning systems by weighting measures and geometrical restrictions 

    René Jativa, E.; Sanchez, David; Vidal Manzano, José (Institute of Electrical and Electronics Engineers (IEEE), 2015)
    Conference report
    Restricted access - publisher's policy
    This paper studies the Non-Line-Of-Sight condition mitigation issue in mobile subscriber positioning systems by weighting Time-Of-Arrival measures and applying geometrical estrictions. Particularly, this work departs from ...
  • Selection of the reference anchor node by using SNR in TDOA-based positioning 

    René Jativa, E.; Ortiz, Diego; Venegas, Pablo; Vidal Manzano, José (2016)
    Conference report
    Restricted access - publisher's policy
    This article studies the positioning problem for wireless networks when TDOA measures are used and the reference anchor node is not previously known. We carried out various experiments to show the impact on accuracy when ...
  • Space-Time diversity for NLOS mitigation in TDOA-based positioning systems 

    René Jativa, E.; Garzon, Esteban; Vidal Manzano, José (Institute of Electrical and Electronics Engineers (IEEE), 2016)
    Conference report
    Open Access
    This paper studies the potential impact of using space-Time information in the mitigation of the Non-LineOf-Sight condition in mobile subscriber's positioning systems. First of all, this work discusses the positioning ...