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Non-orthogonal multiplexing method

A non-orthogonal, equation technology, applied in the field of non-orthogonal multiplexing, can solve the problem of codebook design difficulties, etc., to avoid the degradation of decoding performance, improve resource utilization and spectral efficiency, and reduce design complexity.

Active Publication Date: 2019-08-16
SHANGHAI INST OF MICROSYSTEM & INFORMATION TECH CHINESE ACAD OF SCI +1
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Problems solved by technology

[0004] The purpose of the present invention is to provide a non-orthogonal multiplexing method to solve the problem of difficult codebook design used in encoding in non-orthogonal multiple access technology

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Embodiment Construction

[0036] The non-orthogonal multiplexing method proposed by the present invention will be further described in detail below in conjunction with the drawings and specific embodiments. The advantages and features of the present invention will become apparent from the following description and claims. It should be noted that, the accompanying drawings are all in a very simplified form and in inaccurate scales, and are only used to facilitate and clearly assist the purpose of explaining the embodiments of the present invention.

[0037] Please refer to figure 1 , which is a flowchart of the non-orthogonal multiplexing method of the present invention, such as figure 1 As shown, the non-orthogonal multiplexing method includes:

[0038] Step S1: Forming a large concurrent code stream a at the transmitting end, specifically including: the user generates M transmission code streams at the transmitting end, and forms the M transmission code streams into a large concurrent code stream a,...

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Abstract

The invention provides a non-orthogonal multiplexing method. The non-orthogonal multiplexing method comprises the following steps of forming a large concurrent code stream a at a transmitting end; thetransmitting end performing non-orthogonal multiplexing modulation coding on the large concurrent code stream to obtain a non-orthogonal transmitting matrix; the transmitting end performing K sparseobservation on the non-orthogonal transmitting matrix for multiple times to obtain a group of compact transmitting code words; mapping the compact transmitting code words to corresponding time-frequency resources, and transmitting the compact transmitting code words from a transmitting end to a receiving end; and the receiving end recovering the large concurrent code stream according to the compact transmitting code word. According to the non-orthogonal multiplexing method disclosed by the invention, the large concurrent information flow is converted into the small concurrent information flowthrough a designed non-orthogonal sending matrix multi-time sparse observation method, so that more information streams are borne on limited time-frequency resources than before, the field coding is realized in the non-orthogonal multiple access technology, the method can be simultaneously suitable for the large concurrent information streams with different code lengths, and the problem that the codebook design adopted by coding in the non-orthogonal multiple access technology is difficult is solved.

Description

technical field [0001] The invention relates to the field of wireless communication, in particular to a non-orthogonal multiplexing method. Background technique [0002] With the popularization of 5G system, the application of wireless communication technology in special fields such as national defense and military is gradually strengthened. Especially in military communications, with the demand for visual command system and high-definition battlefield video and image data, data growth and access requirements have shown explosive growth. The current wireless communication transmission rate will be difficult to meet the needs of future military communication in this aspect. In order to improve spectrum efficiency and access capacity, and maintain low cost of reception while achieving good system throughput, a new multiple access multiplexing method, namely non-orthogonal multiplexing, is proposed. In Orthogonal Multiple Access (OMA), only a single wireless resource can be a...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04B7/0456H04L1/00
CPCH04B7/0456H04L1/0071
Inventor 唐亮景振海陆犇卜智勇
Owner SHANGHAI INST OF MICROSYSTEM & INFORMATION TECH CHINESE ACAD OF SCI
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