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Multi-dimensional dynamic interleaving device for multi-antenna scatter communication

A scattering communication, multi-antenna technology, used in radio transmission systems, forward error control, digital transmission systems, etc., can solve problems such as inability to meet system requirements, achieve efficient bandwidth utilization, improve interleaving effects, and increase randomness Effect

Active Publication Date: 2020-02-04
NO 54 INST OF CHINA ELECTRONICS SCI & TECH GRP
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In existing communication systems, a fixed interleaving method is commonly used, which cannot meet the system requirements in the face of high-speed data transmission in fading channels.
Adaptive interleaving rules can disperse error bits to the greatest extent, improve system decoding success rate, and improve system performance, but there is no device using such interleaving rules in the prior art

Method used

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  • Multi-dimensional dynamic interleaving device for multi-antenna scatter communication
  • Multi-dimensional dynamic interleaving device for multi-antenna scatter communication
  • Multi-dimensional dynamic interleaving device for multi-antenna scatter communication

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Embodiment Construction

[0020] The present invention will be further described below in conjunction with the accompanying drawings and specific embodiments.

[0021] figure 1 It is an electrical principle block diagram of a multi-dimensional dynamic interleaving device for multi-antenna scattering communication, which includes an adaptive coding modulator, an interleaver, a space mapper, a frequency conversion and amplifier, a dynamic interleaving rule planner, a multi-dimensional channel state feedback device, Amplifying and frequency converter, channel equalizer, deinterleaver, demodulator and decoder, power supply and clock unit; where,

[0022] Send information into the adaptive coding modulator, complete the adaptive error correction coding and QPSK or QAM modulation mapping, and then send the modulated signal to the interleaver; the interleaver completes the reordering of the modulated signals according to the interleaving matrix, and the reordered modulated signals enter Space mapper; accordi...

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Abstract

The invention discloses a multi-dimensional dynamic interleaving device for multi-antenna scatter communication, and belongs to the technical field of wireless communication and scatter communication.Adaptive coded modulation, interleaving, spatial mapping, frequency conversion and amplification are carried out at a sending end, and conversion from a baseband channel to an analog signal is realized; after the signals are converted into baseband signals through frequency mixing, amplification and channel equalization at a receiving end, a proportional relation and a distribution relation of channel quality and signal-to-noise ratio of each channel are obtained by utilizing a multi-dimensional channel state feedback device; an interleaving / de-interleaving matrix is obtained by utilizing a dynamic interleaving rule planner, and finally optimization of interleaving and de-interleaving rules is realized, so that the bit error rate can be improved by two orders of magnitudes, and a good transmission effect is realized. The multi-dimensional dynamic interleaving device can be used for high-speed information transmission under a beyond visual range fading channel, and is particularly suitable for a multi-input multi-output multi-antenna scattering communication system.

Description

technical field [0001] The invention relates to the technical field of wireless communication and scattering communication, in particular to a multi-dimensional dynamic interweaving device for multi-antenna scattering communication, which can be used in a multi-antenna communication system with multiple transmitting antennas and multiple receiving antennas. Background technique [0002] A multi-antenna communication system is a communication system that uses multiple transmitting antennas and multiple receiving antennas. It is mainly used to enhance the effect of the communication system, and its value has been widely recognized in wireless communication networks. [0003] In communication systems, interleaving is used to break up data, and it is used in combination with error correction coding to solve burst error codes during information transmission. In existing communication systems, a fixed interleaving method is commonly used, which cannot meet the system requirements ...

Claims

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Application Information

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IPC IPC(8): H04L1/00H04B1/40H04B7/0413
CPCH04L1/0071H04B1/40H04B7/0413
Inventor 沈斌松孙柏昶李飞
Owner NO 54 INST OF CHINA ELECTRONICS SCI & TECH GRP
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