TY - JOUR
T1 - PRIDE
T2 - Path Integration Based Delay Estimation in Multi-Device Multi-Path Environments
AU - Peng, Wei
AU - Zhao, Xuehui
AU - Jiang, Tao
AU - Adachi, Fumiyuki
N1 - Funding Information:
Manuscript received April 18, 2018; revised July 13, 2018; accepted August 26, 2018. Date of publication September 24, 2018; date of current version December 14, 2018. This work was supported in part by National Science Foundation of China under Grants 61771214, 61771216, and 61531011, in part by the National Science Foundation for Distinguished Young Scholars of China under Grant 61325004, in part by the Innovative Project of Shenzhen City in China under Grant JCYJ20170307171931096, in part by the Open Research Fund of National Mobile Communications Research Laboratory, Southeast University under Grant 2018D10, and in part by the Fundamental Research Funds for the Central Universities under Grant 2015ZDTD012. The review of this paper was coordinated by Prof. Y. Li. (Corresponding author: Wei Peng.) W. Peng, X. Zhao, and T. Jiang are with the School of Electronic Information and Communications, Huazhong University of Science and Technology, Wuhan 430074, China (e-mail:,pengwei@hust.edu.cn; xuehuizhao@hust.edu.cn; Tao. Jiang@ieee.org).
Publisher Copyright:
© 1967-2012 IEEE.
PY - 2018/12
Y1 - 2018/12
N2 - Massive connectivity in the near future puts forward an urgent demand for the accurate time delay estimation (TDE). However, the accuracy of the traditional TDE methods is severely degraded by the multi-path interference (MPI) and multi-device interference. In this paper, we propose a path integration based delay estimation (PRIDE) method. For the first time, the unique delay structure of each device is utilized, and the MPI is converted to an assistance. Considering the practical case where multi-path delays are non-integer times of the sampling period, PRIDE is carried out in two steps to estimate the integer and fractional parts of the delay sequentially. Theoretical analysis and simulations show that the TDE accuracy in the multi-device multi-path environment can be greatly improved by the proposed PRIDE method with comparatively low computational complexity.
AB - Massive connectivity in the near future puts forward an urgent demand for the accurate time delay estimation (TDE). However, the accuracy of the traditional TDE methods is severely degraded by the multi-path interference (MPI) and multi-device interference. In this paper, we propose a path integration based delay estimation (PRIDE) method. For the first time, the unique delay structure of each device is utilized, and the MPI is converted to an assistance. Considering the practical case where multi-path delays are non-integer times of the sampling period, PRIDE is carried out in two steps to estimate the integer and fractional parts of the delay sequentially. Theoretical analysis and simulations show that the TDE accuracy in the multi-device multi-path environment can be greatly improved by the proposed PRIDE method with comparatively low computational complexity.
KW - Path integration, multi-path
KW - Time delay estimation
KW - multi-device
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U2 - 10.1109/TVT.2018.2872020
DO - 10.1109/TVT.2018.2872020
M3 - Article
AN - SCOPUS:85054699135
VL - 67
SP - 11587
EP - 11596
JO - IEEE Transactions on Vehicular Communications
JF - IEEE Transactions on Vehicular Communications
SN - 0018-9545
IS - 12
M1 - 8471191
ER -