Work

Blind Channel Estimation for FBMC/OQAM Systems Based on Subspace Approach

Year: 2018

Type: article

Abstract: The conventional channel estimation schemes for filter bank multicarrier with offset quadrature amplitude modulation (FBMC/OQAM) systems are mainly based on preamble methods. However, the utilization of preamble for channel estimation decreases the system’s spectrum efficiency. In this paper, we propose a modified subspace blind channel estimation method for FBMC/OQAM systems. The proposed method distinguishes itself from previously preamble based methods by utilizing spatial diversity technique to introduce data redundancy for blind channel estimation, which leads to high spectral utilization. Thus, the proposed method can provide significant root mean square error (RMSE) performance improvement compared to conventional preamble based methods at high SNRs. Simulation results verify the validity of the proposed method in FBMC/OQAM systems.

Source: Information

DOI: 10.3390/info9030058

Authors: Han Wang, Jianqing Liao, Lingwei Xu, Xianpeng Wang

Institutions: Yichun University, Qingdao University of Science and Technology, Hainan University, State Key Laboratory of Marine Resource Utilization in South China Sea

Language: English

Topic: PAPR reduction in OFDM

Subfield: Electrical and Electronic Engineering

Field: Engineering

Domain: Physical Sciences

Open Access status: gold

Estimated APC paid: $1,930

Funders: National Natural Science Foundation of China, China Postdoctoral Science Foundation, Natural Science Foundation of Hainan Province, Hainan Association for Science and Technology