Joint Timing Offset and Channel Estimation for Multi-user UFMC Uplink

Yicheng Xu; Hongyun Chu; Xiaodong Wang

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arXiv · 1902.09177

Joint Timing Offset and Channel Estimation for Multi-user UFMC Uplink

Yicheng Xu·Hongyun Chu·Xiaodong Wang

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Abstract

Universal filtered multi-carrier (UFMC), which groups and filters subcarriers before transmission, is a potential multi-carrier modulation technique investigated for the emerging Machine-Type Communications (MTC). Considering the relaxed timing synchronization requirement of UFMC, we design a novel joint timing synchronization and channel estimation method for multi-user UFMC uplink transmission. Aiming at reducing overhead for higher system performance, the joint estimation problem is formulated using atomic norm minimization that enhances the sparsity of timing offset in the continuous frequency domain. Simulation results show that the proposed method can achieve considerable performance gain, as compared with its counterparts.

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BibTeX RIS

Yicheng Xu, Hongyun Chu, Xiaodong Wang. 2019-02-25. Joint Timing Offset and Channel Estimation for Multi-user UFMC Uplink. https://arxiv.org/abs/1902.09177

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