Abstract
Universal-filtered multi-carrier (UFMC) is a novel multi-carrier modulation technique for 5G wireless communication, which is suitable for short packet and low latency transmissions. In addition, UFMC has a lower sensitivity to synchronization errors compared with orthogonal frequency division multiplexing (OFDM), however synchronization is still an important problem for UFMC-based systems. In this paper, a new preamble structure based on Zadoff Chu (ZC) sequence is devised first for UFMC based systems. Then, an efficient carrier frequency offset (CFO) estimation scheme based on the preamble is proposed. The scheme is primarily divided into two steps. To begin with, based on Maximum likelihood (ML) algorithm, a coarse carrier frequency offset estimation approach is expounded and the searching step of this approach is discussed for a relatively simple calculation. Next, according to the preamble structure, compensated preamble is correlated for fine residual CFO estimation. Through numerous simulations, it is verified that the scheme has a large estimation range and accurate CFO estimation in multipath fading channels.
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Disclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.