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A Coordinated Transmission Method for Three-period Coordinated Multiple Access

A technology of cooperative transmission and time period, which is applied in transmission systems, digital transmission systems, and multiple use of transmission paths.

Active Publication Date: 2021-10-19
UNIV OF ELECTRONICS SCI & TECH OF CHINA
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] If full-duplex technology is used, the self-interference caused by sending and receiving information on the same frequency at the same time
At the same time, due to the limitations of current technology, self-interference cannot be completely eliminated, so the system will be affected by residual self-interference
However, in the existing full-duplex cooperative transmission technology, each transmitter is assumed to use an ideal full-duplex technology without residual self-interference
Since the effect of residual self-interference is not considered, a part of the transmission rate is lost
[0006] From the above analysis, it can be seen that the existing transmitter cooperative transmission technology cannot achieve ideal results in terms of transmission rate at the same time. Therefore, it is necessary to conduct in-depth research on the mutual cooperative transmission technology of transmitters.

Method used

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  • A Coordinated Transmission Method for Three-period Coordinated Multiple Access
  • A Coordinated Transmission Method for Three-period Coordinated Multiple Access
  • A Coordinated Transmission Method for Three-period Coordinated Multiple Access

Examples

Experimental program
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Embodiment

[0080] figure 1 It is a flowchart of a coordinated transmission method for three-period coordinated multiple access in the present invention.

[0081] In this example, if figure 2 As shown, it is a network composed of two non-ideal full-duplex transmitters and one target node. For this network, we propose a three-period coordinated multiple access (3P-CMA) scheme. In this scheme, the transmitter adopts different power allocation methods in three periods.

[0082] Specifically, the 3P-CMA scheme is described as follows. In N time blocks, both transmitters transmit to the receiver at the same time. Each time block contains three time periods, numbered j=1,2,3. We use the transmitter Indicates another transmitter that cooperates with transmitter k. If k=1, then If k=2, then

[0083] Such as figure 1 As shown, below we describe in detail a coordinated transmission method of a three-period coordinated multiple access access method of the present invention, including t...

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Abstract

The invention discloses a coordinated transmission method for three-period coordinated multiple access access. At the dual transmitters, the messages to be sent are first divided into time segments according to time blocks and delivered to the transmitters, and then the two transmitters are divided according to time blocks. Cooperatively transmit signals in time segments; at the receiving end, receive and store the received signals in time blocks according to time segments, and then use backward decoding to decode messages from different transmitting ends; in this way, the two transmitting ends use non-ideal full-duplex Mode communication, signals can be sent and received on the same frequency at the same time, and the transmission will also be affected by residual self-interference that cannot be completely eliminated.

Description

technical field [0001] The invention belongs to the technical field of wireless communication, and more specifically, relates to a coordinated transmission method for three-period coordinated multiple access. Background technique [0002] Transmitter cooperative signal transmission refers to a technology in which two or more transmitters cooperate to transmit signals to the receiver to increase the transmission rate. Cooperative signal transmission technology is a key technology in the field of wireless communication, and is widely used in cellular wireless communication. Compared with adding a relay device specially used for cooperation in the cellular network, the mutual cooperation of the transmitting end makes the cooperation behavior easier to occur, so that it has a wide range of application prospects. [0003] When considering two transmitters and one receiver, the current cooperative transmission of transmitters can be divided into two categories: half-duplex cooper...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04B7/024H04L5/14
CPCH04B7/024H04L5/1469
Inventor 胡江平梁青鹏武艳芝李咏章沈昭宇
Owner UNIV OF ELECTRONICS SCI & TECH OF CHINA
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