Title :
A multi-scale TOA estimation method for ultra wide band non-coherent energy detection receiver
Author :
Dazhong Mu ; Zhengding Qiu ; Xiong Zhang
Author_Institution :
Inst. of Inf. Sci., Beijing Jiaotong Univ., Beijing
Abstract :
In this paper, we propose a rapid time of arrival (TOA) estimation method, which is suitable for low complexity and low cost UWB systems. We develop an iterative algorithm that applies multi-scale sliding correlation window to reduce the system complexity and speed up the estimation process. In order to improve the accuracy of TOA estimation in the presence of multi-user interference (MUI), the perfectly balanced ternary sequence (PBTS) is employed as spreading code to suppress MUI. Through simulations, we show the MAE (mean absolute error) performance for proposed TOA estimation method in IEEE 802.15.4a channel model.
Keywords :
IEEE standards; multiuser detection; radio receivers; time-of-arrival estimation; ultra wideband communication; IEEE 802.15.4a channel model; UWB systems; mean absolute error; multiscale TOA estimation; multiscale sliding correlation window; multiuser interference; noncoherent energy detection receiver; perfectly balanced ternary sequence; time of arrival estimation; ultra wideband receiver;
Conference_Titel :
Wireless, Mobile and Multimedia Networks, 2008. IET International Conference on
Conference_Location :
Beijing
Print_ISBN :
978-0-86341-887-7
