• Adaptive s-aloha cdma as an alternative way of integrating services in mobile environments 

    Sallent Roig, José Oriol; Agustí Comes, Ramon (2000-05)
    Article
    Accés obert
    Code-division multiple-access (CDMA) schemes appear to be very promising access techniques for coping with the requirements of third-generation mobile systems, mainly because of their flexibility. This paper proposes an ...
  • Blind channel estimation and data detection using hidden Markov models theory 

    Antón Haro, Carles; Rodríguez Fonollosa, José Adrián; Rodríguez Fonollosa, Javier (IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC, 1997-01-01)
    Article
    Accés obert
    In this correspondence, we propose applying the hidden Markov models (HMM) theory to the problem of blind channel estimation and data detection. The Baum–Welch (BW) algorithm, which is able to estimate all the parameters ...