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Channel simulation of underground OFDM wireless communication system
Author(s): WEI Jingxin, RAN Xiaoying, School of Electronic Information Engineering, North China Institute of Science and Technology
Pages: 1345-
1349
Year: 2015
Issue:
12
Journal: Journal of Liaoning Technical University(Natural Science)
Keyword: channel; OFDM; delay spread; mine communication; ISI;
Abstract: To improve the quality of signal transmission under coal mine with OFDM wireless communication technology, this paper aims to solve the multipath propagation in the process of signal transmission and anti-interference in coal mine. Through the theoretical analysis, this study analyzed the channel characteristics of the coal mine and the large and small scale fading of the main lane for equivalent analysis; through the comparative analysis, this paper built the evenly spacing TDL model for the discrete multipath channel, and calculated the specific simulation parameters and conducted the simulated research on the performance of the system. The study shows that OFDM wireless communication system in coal mine is an efficient way to improve the quality of the communication by decreasing the interference in signal transmission. The research results indicate that OFDM technique, being applied to the mobile communication system in coal mine, will get better economic benefit and extensive application prospects.
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