Low complexity blindly weighted non-coherent receiver for impulse radio PAM signals

IEICE Electronics Express

Kyungsup Kwak¹  Bin Shen²  Rumin Yang¹ 

[1] UWB Wireless Communication Research Center (UWB-ITRC), Inha University;Wireless Transmission Technologies Research Lab., Chongqing University of Posts and Telecommunications

关键词: blind signal reception;    WNCR;    PAM;    IR-UWB;   

DOI  :  10.1587/elex.8.1562

学科分类：电子、光学、磁材料

来源: Denshi Jouhou Tsuushin Gakkai

【 摘 要 】

References(7)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.

【 授权许可】

Unknown