Research Article
Research on OTFS Performance Based on Joint-Sparse Fast Time-Varying Channel Estimation
7 downloads
@INPROCEEDINGS{10.1007/978-3-030-41114-5_53, author={Wenjing Gao and Shanshan Li and Lei Zhao and Wenbin Guo and Tao Peng}, title={Research on OTFS Performance Based on Joint-Sparse Fast Time-Varying Channel Estimation}, proceedings={Communications and Networking. 14th EAI International Conference, ChinaCom 2019, Shanghai, China, November 29 -- December 1, 2019, Proceedings, Part I}, proceedings_a={CHINACOM}, year={2020}, month={2}, keywords={Time-varying channel estimation OTFS Joint-sparse basis expansion model Compressed sensing}, doi={10.1007/978-3-030-41114-5_53} }- Wenjing Gao
Shanshan Li
Lei Zhao
Wenbin Guo
Tao Peng
Year: 2020
Research on OTFS Performance Based on Joint-Sparse Fast Time-Varying Channel Estimation
CHINACOM
Springer
DOI: 10.1007/978-3-030-41114-5_53
Abstract
Contraposing the problem of high pilot overhead and poor estimation performance for OFDM system in fast time-varying channels, a novel channel estimation method based on joint-sparse basis expansion model is proposed. In order to resist the inter-carrier interference (ICI) of OFDM system over fast time-varying channel, we introduce the OTFS (Orthogonal Time Frequency Space) technique and propose an implementation scheme of OTFS system based on time-frequency domain channel estimation. Simulation results demonstrate that the proposed OTFS system has higher reliability and better adaptability than the OFDM system in high dynamic scenarios.
Copyright © 2019–2025 ICST
