Research and Implementation of Cross-correlation Symbol Synchronization Algorithm for Long Training Sequence Based on OFDM System

Autor:	Faquan Zhang, Jincai Ye, Xu Guojia, Li Guoyong, Guofu Wang
Rok vydání:	2020
Předmět:	Sequence Cross-correlation Orthogonal frequency-division multiplexing Computer science Training (meteorology) Symbol synchronization Algorithm
Zdroj:	IOP Conference Series: Materials Science and Engineering. 782:032115
ISSN:	1757-899X 1757-8981
DOI:	10.1088/1757-899x/782/3/032115
Popis:	Through the analysis of the classic protocol IEEE 802.11a in OFDM system. An OFDM symbol synchronization algorithm based on Long Training Sequence (LTS) is studied. The symbol synchronization estimation using the LTS sequence symbol cross-correlation method can improve the two parameters of the correlation delay D and the synchronization point decision threshold. It reduces the interference of noise on the decision threshold under the Gaussian White Noise (AGWN) channel and the difficulty of FPGA implementation; improves the accuracy of symbol synchronization and the probability of detecting symbol synchronization under a low signal-to-noise ratio. Simulation experiments and FPGA hardware implementation show that compared with conventional algorithms, the system performance is improved.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::9d99a16b5c5ae3f8a936d3cb76313ab6 https://doi.org/10.1088/1757-899x/782/3/032115 Zobrazit plný text záznamu