Title :
An improved ToA estimation in compressed sensing-based UWB systems
Author :
Le, Tan N. ; Kim, Jaewoon ; Shin, Yoan
Author_Institution :
Sch. of Electron. Eng., Soongsil Univ., Seoul, South Korea
Abstract :
Since the first arrival path may not be the strongest path of UWB (Ultra Wide Band) multipath channels, this makes ToA (Time-of-Arrival) estimation becomes a challengeable issue. Furthermore, because of ultra bandwidth of received signal, CS (Compressed Sensing) theory is employed to reduce the complexity caused by very high Nyquist sampling rate in UWB receivers. In this paper, we propose a ToA estimation scheme provides precise estimation performance, while exploiting the benefits of CS-based UWB receivers. Simulation results show that the proposed scheme can outperform other low complexity schemes in a wide range of signal-to-noise ratios.
Keywords :
multipath channels; radio receivers; time-of-arrival estimation; ultra wideband communication; Nyquist sampling rate; ToA estimation; UWB receivers; compressed sensing-based UWB systems; multipath channels; signal-to-noise ratios; time-of-arrival estimation; Complexity theory; Estimation; Matching pursuit algorithms; Multipath channels; Receivers; Signal to noise ratio; Time of arrival estimation; Compressed Sensing; Ranging; ToA; UWB;
Conference_Titel :
Communication Systems (ICCS), 2010 IEEE International Conference on
Conference_Location :
Singapore
Print_ISBN :
978-1-4244-7004-4
DOI :
10.1109/ICCS.2010.5686085
