IEICE Electronics Express
Online ISSN : 1349-2543
Low complexity blindly weighted non-coherent receiver for impulse radio PAM signals
Bin ShenRumin YangKyungsup Kwak
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2011 Volume 8 Issue 19 Pages 1562-1568


This letter proposes an easy-to-implement blindly weighted non-coherent receiver (BWNCR) for low data rate impulse radio ultra-wideband (IR-UWB) systems operating with pulse amplitude modulated (PAM) signals. We first derive the theoretically optimal weights for the likelihood ratio test based WNCR (LRT-WNCR) in closed-form. In order to refrain the LRT-WNCR from demanding a priori knowledge of the channel and the noise variance, we further develop a low complexity receiver to accomplish the optimal weight-setting and threshold-setting in an entirely blind manner. Simulations verify that the bit error rate (BER) of the BWNCR closely approaches that of the LRT-WNCR, which is achieved with ideally known channel state information and noise variance.

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© 2011 by The Institute of Electronics, Information and Communication Engineers
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