A polar code wireless data secure transmission method based on random scrambling code assistance

A technology for secure transmission and wireless data, applied in the direction of digital transmission system, transmission monitoring, transmission system, etc., can solve the problem of no coding scheme.

Active Publication Date: 2021-04-16
ZHONGBEI UNIV +1
View PDF3 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The channel between Alice and Bob is called the main channel, and the channel between Alice and Eve is an eavesdropping channel. Wyner gave the concept of security capacity, and theoretically proved that when the transmission rate is less than the security capacity, the absolute security of information can be guaranteed. Reliable transmission, but no practical coding scheme is given. Research on specific and practical secure coding methods has become a research hotspot in wireless physical layer security technology

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • A polar code wireless data secure transmission method based on random scrambling code assistance
  • A polar code wireless data secure transmission method based on random scrambling code assistance
  • A polar code wireless data secure transmission method based on random scrambling code assistance

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0081] figure 1 A schematic diagram of the system structure and connection relationship of the polar code wireless data secure transmission method assisted by random scrambling codes in the present invention is given. Alice performs random scrambling, and after Polar encoding, the generated symbols are modulated and then transmitted; Bob and Eve respectively Receive the sequence, perform Polar decoding, descrambling and other work.

[0082] This example specifically elaborates the specific situation of each step in the implementation process of the present invention, mainly based on steps 1 to 10 in the main body of the specification, the data transmission process is as follows figure 2 As shown, the specific operation steps are as follows:

[0083] Step A, initializing system parameters: set the source symbol number M=104, CRC check sequence length L C =24, after CRC encoding, Polar encoding input bit length K=128, Polar code word length N=256, generating K-L C =104 bytes...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention relates to a polar code wireless data secure transmission method based on random scrambling code assistance, and belongs to the technical field of channel coding and wireless secure communication. The method includes: 1) initializing system parameters; 2) performing random scrambling on information to be transmitted; 3) performing CRC check on the sequence after random scrambling; 4) performing Polar encoding on the sequence after CRC check; 5) ) Modulate the Polar coded sequence; 6) Carry out signal-noise integrated design on the modulated signal and send it into the channel; 7) Bob end and Eve end receive the signal, and output soft information after demodulation; 8) Bob end Polar decoding is performed on the terminal and Eve respectively; 9) descrambling is performed on the Bob terminal and the Eve terminal respectively; 10) error analysis is performed on the Bob terminal and the Eve terminal respectively. The method can effectively improve the security performance of data transmission in a wireless communication system, and at the same time improve the anti-burst interference performance of wireless data transmission under the premise of slightly increasing the complexity of encoding and decoding.

Description

technical field [0001] The invention relates to a polar code wireless data security transmission method based on random scrambling code assistance, and belongs to the technical fields of wireless communication, channel coding and secret communication. Background technique [0002] With the development of wireless communication technology, how to ensure faster, more reliable, and safer data transmission has always been an indicator pursued by wireless communication technology. The physical layer security method based on information theory proposed in recent years provides the upper bound of the information transmission rate under the premise of ensuring the absolute security and reliability of data transmission, and provides a new method for fast, reliable and secure transmission of wireless data. It has become a hot research issue in current wireless communication. [0003] In the physical layer security technology, Wyner gave an eavesdropping channel model, assuming that t...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & AuthorityPatents(China)
IPC IPC(8): H04L1/00H04B17/391
CPCH04L1/0056H04L1/0057H04L1/0061H04B17/391
Inventor杨志良卢继华姚金杰冯立辉茹超郑玥
OwnerZHONGBEI UNIV