Research Article
Phase Noise Estimation and Compensation Algorithms for 5G Systems
@INPROCEEDINGS{10.1007/978-3-030-06161-6_54, author={Shuangshuang Gu and Hang Long and Qian Li}, title={Phase Noise Estimation and Compensation Algorithms for 5G Systems}, proceedings={Communications and Networking. 13th EAI International Conference, ChinaCom 2018, Chengdu, China, October 23-25, 2018, Proceedings}, proceedings_a={CHINACOM}, year={2019}, month={1}, keywords={Phase noise CPE estimation ICI cancellation}, doi={10.1007/978-3-030-06161-6_54} }- Shuangshuang Gu
Hang Long
Qian Li
Year: 2019
Phase Noise Estimation and Compensation Algorithms for 5G Systems
CHINACOM
Springer
DOI: 10.1007/978-3-030-06161-6_54
Abstract
In the 5G system, orthogonal frequency division multiplexing (OFDM) waveform survived for its superior performance. As is well known, OFDM systems are sensitive to the phase noise introduced by local oscillators and it may get worse for likely higher carrier frequency in 5G systems. There are two aspects of the impact of phase noise, namely the common phase error (CPE) and the inter-carrier-interference (ICI). In this paper, first, we propose a more accurate way to estimate CPE. Then, we focus on ICI cancellation. To simplify the ICI model, we only consider the interference from adjacent sub-carriers. Based on the simplified model, we propose two schemes to estimate ICI. The performance of phase noise compensation algorithm we proposed is presented. Simulation results show that the algorithm we proposed can significantly reduce the impact of phase noise and improve the throughput of 5G systems.
