Now showing items 1-5 of 5

  • 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 ...
  • Information Theory of Transmit Diversity and Space-Time Code Design 

    Muharemovic, Tarik (2000-05-20)
    We restate the achievable information rates for multiple transmit multiple receive antenna systems in fast fading channels. Then we consider non-ergodic channel, where we evaluate asymptotic expression for the outage ...
  • On Beamforming with Finite Rate Feedback in Multiple Antenna Systems 

    Mukkavilli, Krishna Kiran; Sabharwal, Ashutosh; Erkip, Elza; Aazhang, Behnaam (2003-10-20)
    In this paper, we study a multiple antenna system where the transmitter is equipped with quantized information about instantaneous channel realizations. Assuming that the transmitter uses the quantized information for ...
  • Spreading and Power Control for Multiple Antenna Transmit Diversity 

    Rajan, Dinesh (1999-04-20)
    This thesis proposes a new transmission scheme for multiple antenna transmission at the base station of a wireless cellular system. We develop our new scheme in a wideband CDMA framework using multiple phases of Gold codes ...
  • Transmit Diversity for CDMA-2000 

    Rajan, Dinesh; Gray, Steven D. (1999-09-20)
    Transmit diversity offers an advantage in the forward link of the cdma2000 system by balancing the spectrum efficiency in the uplink and downlink. Three schemes for performing transmit diversity are examined in this paper ...