A Robust Symbol Timing Synchronization Scheme for OFDM Systems Applied in a Vehicular Network

被引：14

作者：

Abdelgader, Abdeldime Mohamed Salih ^{[1
]}

Shu, Feng ^{[2
,3
]}

Wu, Lenan ^{[4
]}

Wang, Jin ^{[2
,3
]}

Wang, Jun ^{[5
]}

机构：

[1] Karary Univ, Khartoum 12304, Sudan

[2] Fujian Agr & Forestry Univ, Coll Comp & Informat Sci, Fuzhou 350002, Fujian, Peoples R China

[3] Nanjing Univ Sci & Technol, Sch Elect & Opt Engn, Nanjing 210094, Jiangsu, Peoples R China

[4] Southeast Univ, Natl Mobile Commun Res Labs, Nanjing 210096, Jiangsu, Peoples R China

[5] Fuzhou Univ, Coll Elect Engn & Automat, Fuzhou 350116, Fujian, Peoples R China

来源：

IEEE SYSTEMS JOURNAL | 2019年 / 13卷 / 02期

基金：

中国国家自然科学基金;

关键词：

Orthogonal frequency-division multiplexing (OFDM); physical layer (PHY); symbol timing offset (STO); synchronization; vehicular ad hoc network (VANET); FREQUENCY SYNCHRONIZATION; CHANNEL ESTIMATION; OFFSET ESTIMATION; IEEE; 802.11P; TIME; DIVERSITY; INTERFERENCE; EQUALIZATION; FRAME;

D O I：

10.1109/JSYST.2018.2875517

中图分类号：

TP [自动化技术、计算机技术];

学科分类号：

0812 ;

摘要：

This paper presents a novel timing synchronization scheme for orthogonal frequency-division multiplexing communication systems by leveraging the phase shift caused by the timing error and the power difference between subcarriers. The proposed scheme is applied in the physical layer of vehicular ad hoc networks using the IEEE 802.11p standard. The proposed work joints three different estimators to present a robust synchronizer. The results demonstrate that the proposed estimators greatly improve the performance of the communication system and outperform other approaches in terms of the mean square error and the bit error rate. The estimators can either work as totally blind or data-aided using the preamble field of the IEEE 802.11p.

引用

页码：1443 / 1453

页数：11

共 38 条

[1] A Secret Key Extraction Technique Applied in Vehicular Networks [J].