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Method and device for wireless communication cooperative transmission based on composite relay selection

A cooperative transmission and wireless communication technology, applied in wireless communication, location diversity, sustainable communication technology, etc., can solve problems such as reducing packet error rate, achieve the effect of increasing speed, improving system performance, and reducing the risk of packet loss

Active Publication Date: 2020-10-16
SHENZHEN NEW BASE POINT INTELLIGENT TECH
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0006] The main purpose of the present invention is to provide a wireless communication cooperative transmission method and device based on composite relay selection to solve the problem of reducing the packet error rate

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  • Method and device for wireless communication cooperative transmission based on composite relay selection
  • Method and device for wireless communication cooperative transmission based on composite relay selection
  • Method and device for wireless communication cooperative transmission based on composite relay selection

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Embodiment Construction

[0047] It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.

[0048] refer to figure 1 , the embodiment of the present invention proposes a wireless communication cooperative transmission method based on composite relay selection, including steps:

[0049] S100. Divide the source data into multiple segments of sub-segment data;

[0050] S110. When sending data, select a relay node for one of the sub-segment data according to real-time channel information, and then send it; according to the order of the sub-segment data, select a relay node for the sub-segment data in sequence and send it.

[0051] As in the above step S100, the source data is divided into multiple segments of sub-segment data, and the received source data is decomposed into multiple sub-data segments with the same number of bytes. The number of decomposed segments and the number of bytes per segment can be set ...

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Abstract

The invention discloses a wireless communication cooperative transmission method and device based on compound relay selection. The method comprises the steps that source data is divided into a plurality segments of subsegment data; during data sending, a relay node is selected for one piece of subsegment data according to real-time channel information, and is then sent; relay nodes are sequentially selected for the subsegment data according to the subsegment data sequence, and are sent. The method has the advantages that the channel state information can be timely updated in the data transmission period; the relay nodes are reselected according to the updated channel state information, so that the relay nodes used in real time can be changed along with the change of the channel state information; the data transmission rate is improved; the risk of packet loss in the transmission process is reduced, so that the system performance is improved.

Description

technical field [0001] The present invention relates to the field of wireless communication cooperative transmission, in particular to a wireless communication cooperative transmission method and device based on composite relay selection. Background technique [0002] In recent years, cooperative communication has become an important means to improve system reliability in wireless communication. Its basic idea is to use relay to forward data to realize space diversity. Not all relays participating in the cooperation can achieve the best effect, so relay selection is required in the case of multiple relays. The cooperative communication relay selection is to obtain the channel state information CSI first, and then perform corresponding operations, and the operation process takes a certain amount of time. Due to the time-varying channel between nodes in wireless communication, the CSI based on relay selection will be different from the CSI during data transmission, that is, ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04B7/026H04W36/30H04W40/22
CPCH04B7/026H04W36/30H04W40/22Y02D30/70
Inventor 曾尔阳费礼
Owner SHENZHEN NEW BASE POINT INTELLIGENT TECH