Large-scale dipolar antenna based NOMA downlink non-interfering transmission method

A dual-polarized antenna and NOMA technology, applied in polarization/direction diversity, radio transmission systems, transmission systems, etc., can solve problems such as errors, security interference, and time delays, so as to avoid delays and ensure safety Effect

Active Publication Date: 2018-11-06
HARBIN INST OF TECH SHENZHEN GRADUATE SCHOOL
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  • Abstract
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Problems solved by technology

[0006] Aiming at the defects or deficiencies in the prior art, the present invention aims to solve the deficiencies of the above prior art, and provides a NOMA downlink non-

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  • Large-scale dipolar antenna based NOMA downlink non-interfering transmission method
  • Large-scale dipolar antenna based NOMA downlink non-interfering transmission method
  • Large-scale dipolar antenna based NOMA downlink non-interfering transmission method

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[0053] The present invention will be further described below in conjunction with the description of the drawings and the specific embodiments.

[0054] Such as figure 1 As shown, the NOMA downlink interference-free transmission method based on large-scale dual-polarized antennas of the present invention includes the following steps:

[0055] Step 1: Start;

[0056] Step 2: The base station transmitter determines the channel state information;

[0057] Step 3: The base station performs precoding processing on the information to be sent by the user;

[0058] Step 4: The base station sends information to the user;

[0059] Step 5: End.

[0060] In the present invention, when implementing the method, the network system of the present invention is preferably constructed such as figure 2 As shown in the system schematic diagram, the base station is designed with M orthogonal dual-polarized antennas, and each user is equipped with an orthogonal dual-polarized antenna, so that the signal sent b...

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Abstract

The invention discloses a large-scale dipolar antenna based NOMA downlink non-interfering transmission method. The large-scale dipolar antenna based NOMA downlink non-interfering transmission method comprises the steps of 1, starting; 2, determining channel state information by a base station transmitting end; 3, pre-coding to-be-transmitted information of a user by a base station; 4, sending information to the user by the base station; and 5, ending. In the method, the user K can obtain a signal thereof through one-time processing, delay caused by a serial interference elimination technologycan be avoided and wrong broadcasting cannot occur; the user K when receiving a superposed signal obtains the signal thereof rather than signals of other users, so that the safety of each user in thesystem is guaranteed efficiently. The method has the processing speed better than that of other commonly used methods in the prior art and particularly better than that of an OMA system method.

Description

technical field [0001] The invention relates to the technical field of wireless communication, in particular to a NOMA downlink interference-free transmission method based on a large-scale dual-polarized antenna. Background technique [0002] In the orthogonal multiple access mode, an orthogonal resource can only be allocated to one user, which severely limits the cell throughput and the number of device connections. Therefore, dimensions such as the power domain and the coding domain are introduced to increase the number of user connections and spectral efficiency, and to obtain greater channel capacity. [0003] In 2010, Japan's NTT DoCoMo first proposed the concept of power domain non-orthogonal multiple access technology and conducted related research. Later, Thomas et al. introduced the basic principle of this technology in detail, that is, the idea of ​​superposition coding is used to send signals in the power domain, so that users with different channel conditions ca...

Claims

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Application Information

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IPC IPC(8): H04B7/0456H04B7/10
CPCH04B7/0456H04B7/0469H04B7/10
Inventor 曹斌董雅鑫吕劭鹏张钦宇
Owner HARBIN INST OF TECH SHENZHEN GRADUATE SCHOOL
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