Parameter-Inherited Delay Doppler Channel Estimation based on Unitary AMP

Wei, Xinyuan1; Yuan, Weijie1; Gao, Feifei2; Han, Guangjie3

10.1109/GLOBECOM54140.2023.10436978

2023

IEEE Conference on Global Communications (IEEE GLOBECOM) - Intelligent Communications for Shared Prosperity

2334-0983

2576-6813

IEEE CONFERENCE ON GLOBAL COMMUNICATIONS, GLOBECOM

DEC 04-08, 2023

null,Kuala Lumpur,MALAYSIA

345 E 47TH ST, NEW YORK, NY 10017 USA

IEEE

The orthogonal time frequency space (OTFS) technique is an innovative modulation scheme that provides significant advantages in terms of channel delay and Doppler shifts. In this work, we study the sparse delay and Doppler channel estimation problem for OTFS and consider the impact of inheriting initial and iterative parameters on adjacent estimated channel corresponding to previous OTFS transmitted blocks. We propose a parameterinherited sparse Bayesian learning (SBL) channel estimation algorithm based on unitary approximate message passing (UAMP). Simulation results show that compared to the state-of-art SBL-based algorithms, the proposed algorithm has faster convergence speed and higher accuracy. Furthermore, by exploiting the block circulant matrix with circulant blocks (BCCB) matrix property, we replace the matrix multiplication with two-dimensional (2D) fast Fourier transform (FFT), which leads to a low complexity.

channel estimation orthogonal time frequency space (OTFS) parameters-inherited sparse Bayesian learning (SBL) unitary approximate message passing (UAMP)

第一 ; 通讯

英语

CPCI-S

National Natural Science Foundation of China[62101232] ; Guangdong Provincial Natural Science Foundation[2022A1515011257] ; Shenzhen Science and Technology Program[JCYJ20220530114412029]

Engineering ; Telecommunications

Engineering, Electrical & Electronic ; Telecommunications

WOS:001178562004123

Web of Science

1.Southern Univ Sci & Technol, Sch Elect & Elect Engn, Shenzhen, Peoples R China
2.Tsinghua Univ, Dept Automat, Beijing, Peoples R China
3.Hohai Univ, Dept Informat & Commun Syst, Changzhou, Jiangsu, Peoples R China

Wei, Xinyuan,Yuan, Weijie,Gao, Feifei,et al. Parameter-Inherited Delay Doppler Channel Estimation based on Unitary AMP[C]. 345 E 47TH ST, NEW YORK, NY 10017 USA:IEEE,2023.