Research Article
A Novel TOA Estimation Using Multiple Masks Operation for Non-coherent IR-UWB Systems
@INPROCEEDINGS{10.1109/PERSER.2007.4283912, author={Woon Yong Park and Cheol Ung Park and Sungsoo Choi and Won Cheol Lee}, title={A Novel TOA Estimation Using Multiple Masks Operation for Non-coherent IR-UWB Systems}, proceedings={1st International IEEE Conference on Pervasive Services}, publisher={IEEE}, proceedings_a={ICPS}, year={2011}, month={8}, keywords={Background noise Degradation Gold Interference Periodic structures Personal area networks Time of arrival estimation Transceivers Transmitters Wireless communication}, doi={10.1109/PERSER.2007.4283912} }- Woon Yong Park
Cheol Ung Park
Sungsoo Choi
Won Cheol Lee
Year: 2011
A Novel TOA Estimation Using Multiple Masks Operation for Non-coherent IR-UWB Systems
ICPS
IEEE
DOI: 10.1109/PERSER.2007.4283912
Abstract
This paper proposes a non-coherent time of arrival (TOA) estimation scheme using multiple Gold sequences on the existence of simultaneously operating piconets (SOPs). The proposed non-coherent receiver is composed of a series of energy collectors and low-bit analog to digital converters (ADCs). To mitigate the degradation of TOA estimation due to mutual interferences induced by multiple SOPs, the employment of Gold sequence is considered in this paper. Towards this, multiple masks operation (MMO) constructed by sub-Gold sequences are processed to enhance the quality of correlation property. Precisely, accumulation and overlapped multiplication processes make possible to improve the resolution so that the accurate TOA information can be achieved via proper comparison with a certain prescribed threshold. Furthermore, the search back window (SBW) method will be proposed to produce enhanced TOA estimation capability. The performance of the proposed SBW accompanied by sub-Gold sequence masks is verified by conducting proper simulations under two types of channel conditions. The simulation results show that the proposed scheme performs well even in a condensed indoor multipath environment on the existence of multiple SOPs.
