Noncoherent Maximum Likelihood Synchronization of Multi-Antenna UWB-IR faded Systems

Conference: European Wireless 2005 - 11th European Wireless Conference 2005 - Next Generation wireless and Mobile Communications and Services
04/10/2006 - 04/13/2005 at Nicosia, Cyprus

Proceedings: European Wireless 2005

Pages: 7Language: englishTyp: PDF

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Baccarelli, Enzo; Biagi, Mauro; Pelizzoni, Cristian; Cordeschi, Nicola (INFO-COM Dept., University of Rome ”La Sapienza”, via Eudossiana 18, 00184 Rome, Italy)
Garzia, Fabio (ICMMPM departement, MP division, via Eudossiana 18, 00184 Rome, Italy)

This contribution focuses on the (up to date unexplored) topic of the Maximum-Likelihood (ML) noncoherent synchronization of Multi-Antenna transceivers working in faded environments and employing Ultra Wide Band Impulse Radio (UWB-IR) transmit technology. In particular, the Cramer-Rao Bound (CRB) is presented for the general case of Multiple-Input-Multiple-Output (MIMO) UWB-IR systems and used to compare the ultimate performance of three basic transmit schemes, thereinafter referred to as Single-Input-Single-Output (SIMO), MIMO Equal Signaling (MIMO-ES) and MIMO Orthogonal Signaling (MIMO-OS) ones. Thus, the noncoherent ML synchronizer is developed for the most performing transmit scheme (e.g., the SIMO one) and its performance is evaluated under both signal-acquisition and tracking operating conditions. The performance gain in the synchronization of UWB-IR signals arising by the utilization of the Multi-Antenna technology is also evaluated.