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A Multi-hop Cooperative Transmission Method Based on Dynamic Antenna Selection

A technology of antenna selection and multi-hop cooperation, which is applied in radio transmission systems, transmission systems, diversity/multi-antenna systems, etc., can solve the problems of high complexity in the implementation of data transmission systems, reduce implementation complexity and cost, and improve reliability Effect

Active Publication Date: 2020-01-31
HENAN UNIVERSITY OF TECHNOLOGY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] The purpose of the present invention is to propose a multi-hop cooperative transmission method based on dynamic antenna selection in a massive MIMO downlink multi-hop system, so as to solve the problem of high complexity of data transmission system under 5G communication technology

Method used

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  • A Multi-hop Cooperative Transmission Method Based on Dynamic Antenna Selection
  • A Multi-hop Cooperative Transmission Method Based on Dynamic Antenna Selection
  • A Multi-hop Cooperative Transmission Method Based on Dynamic Antenna Selection

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Embodiment Construction

[0020] Antenna selection technology is to configure more antennas than radio frequency links at the transmitting / receiving end, select antennas with the same number (or less) as the number of radio frequency links to form an antenna subset through certain criteria, and switch the radio frequency links adaptively A technique for sending / receiving signals to a subset of antennas. In the cellular mobile communication system, the distance between each user end and the base station is different. In order to maximize energy efficiency, the optimal number of antennas required by each user end after antenna selection technology is different under different channel conditions. Especially in a random time-varying wireless channel, due to the mobility of the user end, the optimal number of antennas required by each user also changes dynamically, that is, a dynamic cooperative transmission system. At present, the researches on antenna selection at home and abroad mainly include the follo...

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Abstract

The invention relates to a multi-hop cooperative transmission method based on dynamic antenna selection. The method comprises the steps of configuring antennas of a large-scale array at a base station, selecting an optimal transmitting antenna subset according to set criteria, and cooperatively allocating information source data packets to be transmitted to corresponding transmitting antennas after rateless coding; an cooperative end reserving correct coded data packets, and transmitting the correct coded data packets to a receiving end; and after the receiving end determines receiving a set number of coded data packets, decoding the received coded data packets according to the rateless coding. By combining the rateless coding cooperation technology with the dynamic antenna selection, the problems of high implementation complexity and high cost of a system in a 5G communication environment are solved.

Description

technical field [0001] The invention relates to a multi-hop cooperative transmission method based on dynamic antenna selection in a massive MIMO downlink system, and belongs to the technical field of wireless communication. Background technique [0002] The improvement of the capacity of the wireless communication system and the reliability of data transmission by the multiple input multiple output (Multiple Input Multiple Output, MIMO) technology has been widely confirmed and verified. In the fourth generation (4G) mobile communication, the number of multiple antennas deployed by MIMO technology is usually within 8. [0003] In order to adapt to the antenna subset cooperative transmission system with a dynamic structure that maximizes energy efficiency, the coding cooperation method with a fixed code rate, such as Low Density Parity Check code (Low Density Parity Check, LDPC) cooperation, etc., both the base station and the user end need to store a large number of The chan...

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04B7/0413H04B7/06H04B7/0417
CPCH04B7/0413H04B7/0608
Inventor 杨静朱春华管爱红李智
Owner HENAN UNIVERSITY OF TECHNOLOGY