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Short-wave communication system based on fountain codes and single carrier frequency domain equalization and transmission method thereof

A single-carrier frequency domain and fountain code technology, applied in baseband system components, transmission systems, digital transmission systems, etc., can solve problems such as difficult to effectively guarantee data reliability and low file transmission efficiency, and shorten file transmission Delay, enhance the ability of selective fading in the frequency domain, and improve the effect of transmission efficiency

Inactive Publication Date: 2015-11-11
XINHUA NEWS AGENCY +1
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Problems solved by technology

[0005] Therefore, it is very necessary to find a short-wave high-speed data transmission method based on single-carrier frequency domain equalization technology, and to solve the problem of low file transmission efficiency and difficult to effectively guarantee data reliability during short-wave one-way channel transmission.

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  • Short-wave communication system based on fountain codes and single carrier frequency domain equalization and transmission method thereof
  • Short-wave communication system based on fountain codes and single carrier frequency domain equalization and transmission method thereof
  • Short-wave communication system based on fountain codes and single carrier frequency domain equalization and transmission method thereof

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Embodiment Construction

[0038] The present invention will be described in further detail below in conjunction with the accompanying drawings and specific embodiments, but the present invention is not limited in any form. Based on the embodiments of the present invention, other embodiments obtained by persons of ordinary skill in the art through several modifications and improvements without creative efforts all belong to the protection scope of the present invention.

[0039] Such as figure 1 As shown in the connection schematic diagram of each transmission node in the present invention, a short-wave high-speed data transmission method based on fountain code and single-carrier frequency domain equalization, it includes performing fountain code encoding processing and adding CRC after sending information bits into groups at the sending end Check field, after interleaving, encoding and modulating the coded data packet, insert UW field and STS field to form a single carrier data transmission frame and s...

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Abstract

The invention relates to a short-wave communication system based on fountain codes and single carrier frequency domain equalization and a transmission method thereof, and belongs to the technical field related to wireless communication systems, communication signal processing and channel encoding and decoding. Fountain codes are employed in the short-wave data transmission system, and source encoding-channel encoding-modulation combined optimized technology is used, thereby effectively shortening the file transmission time delay in short-wave unidirectional non-feedback channels, enhancing the reliability of a communication system under severe channel environment, improving file transmission efficiency, and effectively ensuring data reliability. Single carrier frequency domain equalization technology based on time-frequency mixed channel estimation is employed to greatly reduce the complexity of a receiver of a single carrier system, and greatly increase the capability of the system to resist frequency domain selectivity fading due caused by multipath transmission of short-wave channels.

Description

technical field [0001] The invention relates to a high-speed data transmission technology in short-wave communication, in particular to a high-speed data transmission method based on a single-carrier frequency-domain equalization decision feedback algorithm for short-wave one-way communication channels, belonging to wireless communication systems, communication signal processing and channel coding and other related technical fields. Background technique [0002] Shortwave communication refers to a way of long-distance communication through ionospheric reflection within the frequency range of 3MHz to 30MHz. It is the only means to realize global communication without relay, and has an irreplaceable position in the field of wireless communication. Shortwave communication is widely used in point-to-point and point-to-point transmission applications that require long-distance coverage. For example, decentralization of policy documents, transmission of emergency documents, colle...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L25/03H04L1/00
Inventor 吕锐赵建国郭鸿飞李洁原冯治强张禹谭水张习国余心乐王菲菲尹航
Owner XINHUA NEWS AGENCY
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