Now showing items 1-2 of 2

  • Channel Estimation for Multirate DS-CDMA Systems 

    Sabharwal, Ashutosh; Mitra, Urbashi; Bhashyam, Srikrishna (2000-11-20)
    The problem of channel estimation for multiple data rate Direct-Sequence Code-Division Multiple-Acess (DS-CDMA) systems is addressed. The derived algorithms are suitable for both variable chipping rate and/or variable ...
  • Rate-constrained Relaying: A Model for Cooperation with Limited Relay Resources 

    Sabharwal, Ashutosh; Mitra, Urbashi (2005-06-01)
    In this paper, the impact of limited resources on achievable rates in relay channels is investigated. Resource limitation is modeled as a rate constraint, Rbar, which constrains the rate at which a relay can reliably ...