Title :
A novel CML-based synchronization algorithm for IR-UWB communications
Author :
Mai, Lang ; Peng, Yanjie ; Zeng, Xiaoyang
Author_Institution :
Fudan Univ., Shanghai
Abstract :
Based on CML estimation, a novel synchronization algorithm is proposed for IR-UWB system, which includes three improved schemes: Frame-level noise suppression (FNS), noise template cross-correlation estimation (NTCE) and slide correlation search (SCS). FNS and NTCE can largely improve the performance of synchronization in the condition of low SNR, while SCS lowers the error floor in the condition of high SNR. Both mathematical analysis and simulation indicate that each proposed scheme could achieve the expected optimization of performance.
Keywords :
correlation methods; interference suppression; maximum likelihood estimation; synchronisation; ultra wideband communication; CML estimation; IR-UWB communications; conditional maximum likelihood estimation; frame-level noise suppression; noise template cross-correlation estimation; slide correlation search; synchronization algorithm; ultra wideband communication; Application specific integrated circuits; Channel estimation; Degradation; Frequency synchronization; Mathematical analysis; Noise generators; Noise reduction; Signal to noise ratio; State estimation; Timing;
Conference_Titel :
ASIC, 2007. ASICON '07. 7th International Conference on
Conference_Location :
Guilin
Print_ISBN :
978-1-4244-1132-0
Electronic_ISBN :
978-1-4244-1132-0
DOI :
10.1109/ICASIC.2007.4415753
