Articles


Document Type
Journal article (JA)
Title
Fine Doppler scale estimations for an underwater acoustic CP-OFDM system
Author
Wan, Lei (1, 2, 3, 4, 5); Jia, Hanbo (1, 2, 3); Zhou, Feng (1, 2, 3); Muzzammil, Muhammad (1, 2, 3); Li, Tao (1, 2, 3); Huang, Yi (6)
作者单位
(1) Acoustic Science and Technology Laboratory, Harbin Engineering University, Harbin; 150001, China (2) Key Laboratory of Marine Information Acquisition and Security, (Harbin Engineering University), Ministry of Industry and Information Technology, Harbin; 150001, China (3) College of Underwater Acoustic Engineering, Harbin Engineering University, Harbin; 150001, China (4) Key Laboratory of Underwater Acoustic Communication and Marine Information Technology, (Xiamen University), Ministry of Education, Xiamen; 361005, China (5) School of Informatics, Xiamen University, Xiamen; 361005, China (6) Unicore Communications, Fremont; CA; 94538, United States
RPAddress
145 Nantong St, Harbin, Peoples R China.
Email
ResearchID
ORCID
Journal
Signal Processing
Publisher
Elsevier B.V.
ISSN
0165-1684
Published
2020-05, 170 ():-.
JCR
ImpactFactor
ISBN
Fund_Code
National Natural Science Foundation of ChinaNational Natural Science Foundation of China [61801139, U1806201]; National Key Research and Development Program of China [2017YFC0305702]
会议名称
会议地点
会议开始日期
会议结束日期
HYLWLB
HYJB
Keywords
Frequency estimation; Mobile telecommunication systems; Orthogonal frequency division multiplexing
Abstract
In the challenging underwater acoustic (UWA) communication channels, the performance of orthogonal frequency division multiplexing (OFDM) systems is severely affected by the Doppler effect. Hence, the Doppler scale estimation and compensation are critical for UWA OFDM systems. As a commonly adopted solution, the Doppler scale can be estimated by the maximization of auto-correlation between the received cyclic prefix (CP) and OFDM symbol. However, the accuracy of the auto-correlation based Doppler scale estimation is decided by the sampling rate of the signal. To achieve higher estimation accuracy, higher sampling rate is required and which means more computational complexity. To overcome this problem, we propose several fine Doppler scale estimation methods by interpolating the auto-correlation peak values, based on the derived expression of the expected auto-correlation outputs corresponding to a CP-OFDM signal after the UWA channel. Simulation results demonstrate the effectiveness of the proposed methods, and the decoding of experimental data further verifies the superiority of those methods. ? 2019 Elsevier B.V.
WOS Categories
Engineering, Electrical & Electronic
Accession Number
WOS:000515206600008
EI收录号
20195207926227
DOI
10.1016/j.sigpro.2019.107439
ESI_Type
ENGINEERING
Collection
SCIE, EI

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