Preamble-aided time delay estimation in frequency selective channels for wireless OFDM systems

被引：0
|
作者：
Yu, Qun [1 ,2 ]
Lin, Haisheng [3 ]
Feng, Suili [2 ]
Li, RongLin [2 ]
机构：
[1] Guangzhou Univ, Sch Electromech Engn, Guangzhou 510006, Guangdong, Peoples R China
[2] South China Univ Technol, Sch Elect & Informat Engn, Guangzhou 510641, Guangdong, Peoples R China
[3] GuangDong Mobile Commun Corp, Shenzhen Branch, Shenzhen 518048, Peoples R China
来源：
JOURNAL OF ENGINEERING-JOE | 2014年 / 2014卷
基金：
中国国家自然科学基金;
关键词：
Cross correlation techniques - Frequency selected - Frequency selective channel - Number of multipaths - Orthogonal frequency division multiplexing systems - Preamble structure - Time delay estimation - Wireless OFDM systems;
D O I：
10.1049/joe.2014.0171
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
In this Letter, an improved method for estimating the time delay in preamble-aided orthogonal frequency division multiplexing systems is presented. It uses a conventional preamble structure and combines cross-correlation techniques to achieve estimations of time delay and the number of multipaths without any additional overhead. Computer simulations results show that the proposed method is of near-ideal property in frequency-selected channels.
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页数：3
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