In this paper, we present two space-time schemes for exploiting diversity in multi-antenna impulse radio ultra wide-band (IR-UWB) systems when neither the transmitter nor the receiver has access to channel state information. ...

In this paper, the advantage of applying space-time (ST) coding on ultra wideband (UWB) systems is discussed. In order to achieve very high data rates and important performance gains combined pulse position modulation (PPM) ...