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Wireless multi-hop routing network transmission method based on mimo and pnc fusion

A network transmission, wireless multi-hop technology, applied in the transmission system, wireless communication, digital transmission system, etc., can solve problems such as lack of

Active Publication Date: 2016-08-10
NORTHEASTERN UNIV LIAONING
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, there are obvious differences between these two technologies. How to integrate the two technologies to greatly improve the performance of the system is the most critical issue, but the current research on this aspect is still relatively lacking.

Method used

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  • Wireless multi-hop routing network transmission method based on mimo and pnc fusion
  • Wireless multi-hop routing network transmission method based on mimo and pnc fusion
  • Wireless multi-hop routing network transmission method based on mimo and pnc fusion

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Embodiment Construction

[0076] An embodiment of the present invention will be further described below in conjunction with the accompanying drawings.

[0077] The essence of the present invention's process of realizing interference-free transmission between users is the process of physical layer network coding (PNC) on the basis of using MIMO technology in user nodes and relay nodes, so the whole transmission process is still the transmission process of PNC, and The general principle model and transmission process of PNC as figure 1 As shown, in the first time slot, the user node transmits the signal it wishes to transmit (s A ,s B ) to the relay node; the relay node processes the received mixed signal through mapping and coding, and broadcasts it to the user node used in the second time slot, and the user node will extract the required information from the received mixed signal Signal.

[0078] A wireless multi-hop network transmission method based on MIMO and PNC fusion, the method flow chart is ...

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Abstract

The present invention is a wireless multi-hop routing network transmission method based on the integration of MIMO and PNC, and belongs to the field of wireless relay communication technology. Based on the single relay multi-directional channel system, the present invention fully considers whether the number of user node and relay node antennas Two situations that meet the constraints, and then the integration of MIMO and PNC is carried out, using MIMO technology to transform the multipath propagation environment into a powerful factor for users, using the spatial multiplexing gain provided by the MIMO channel to improve channel capacity, and at the same time using The diversity gain provided by the MIMO channel improves transmission reliability; at the same time, physical layer network coding is used to further reduce the time slots for signal transmission, thereby improving system throughput. Based on the integration of the two technologies, the throughput and reliability of the system have been greatly improved.

Description

technical field [0001] The invention belongs to the technical field of wireless relay communication, and in particular relates to a wireless multi-hop routing network transmission method based on MIMO and PNC integration. Background technique [0002] With the rapid development of wireless multi-hop networks, the problems of network capacity and communication reliability are becoming more and more prominent. The lack of wireless spectrum resources seriously restricts the improvement of transmission rate and communication reliability. Therefore, the key to improving network transmission rate and communication quality is to improve the effective utilization of spectrum. Among them, the multiple-input multiple-output (Multiple-Input Multiple-Output, MIMO) technology is regarded as an effective means to improve frequency utilization because of its great potential in improving data transmission rate and transmission reliability. In addition, the cooperative communication technol...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04W40/02H04L1/02H04B7/02H04L1/00
Inventor 宋清洋周厉宁李勋丛笑竹
Owner NORTHEASTERN UNIV LIAONING