A system and method for transmitting and receiving physical layer network coding encryption based on relay control
A technology of network coding, transceiver system, applied in the field of physical layer network coding encryption transceiver system based on relay control, can solve problems such as large amount of calculation, noise amplification, lower system efficiency, etc., achieves small amount of calculation, increased throughput, The effect of ensuring transmission efficiency
Active Publication Date: 2022-02-01
TECH & ENG CENT FOR SPACE UTILIZATION CHINESE ACAD OF SCI +1
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[0040] A physical layer network coding encryption transceiver system based on relay control in the embodiment of the present invention, such as figure 1 As shown, two of the multiple source nodes are arbitrarily selected, which are respectively recorded as the first source node and the second source node; wherein, the number of source nodes can be 2, 4, 6, etc., and the number of relay nodes can be 1, 2, 3, etc., the relay node, the first source node and the second source node all store the same key file F;
[0041] Define the information sequence formed by splicing the first sequence C and the second sequence D sequentially as CD, which makes it easier to understand qm, pn, and qn in this application;
[0042] The keytext F includes operation instructions and keytext content. When the operation instruction is an ordinary instruction, the sequence of the ordinary instruction is denoted as q, and the sequence of the keytext content is denoted as m. According to q and m Generat...
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The present invention relates to a physical layer network code encryption transceiver system and method based on relay control. The relay node and each source node perform aliasing encryption on the sent plaintext, specifically, the relay node and each source node For any data to be sent: the first sent information, the second sent information, the superimposed sent information, etc. are the results of calculations, and any first plaintext and second plaintext that originally participated in the calculation cannot be deduced from the calculation results alone. During the process, the information received by the malicious third party is the result of calculation, that is, aliasing information, which has no recovery value, so that each source node completes the confidential transmission of plaintext; and completely retains the PNC compared to ordinary TWRC Scenario, its throughput can be doubled, and any data sent at any time is defined by plaintext and keytext, and realized by a simple XOR operation in G(2), without affecting real-time communication to ensure its transmission efficiency.
Description
technical field [0001] The present invention relates to the field of laser communication, in particular to a physical layer network code encryption transceiver system and method based on relay control. Background technique [0002] Physical-layer Network Coding (PNC) is a communication method that applies network coding to the physical layer. The relay node performs network coding mapping on the plaintext from different source nodes and then forwards it to the corresponding source node. , the source node receiving the plaintext recovers the plaintext of the corresponding source node, which can double the throughput. In traditional wireless communication, due to the broadcast characteristics of the wireless channel, when a malicious third-party user receives a signal sent from a node When it is used, the sent plaintext may be demodulated and recovered, resulting in leaks. Even if the ciphertext is encrypted in a certain way, it may be forcibly cracked after trying a specific ...
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IPC IPC(8): H04L9/40H04B10/11
CPCH04L63/0428H04B10/11
Inventor 王雪松展月英张春晖孙扬
Owner TECH & ENG CENT FOR SPACE UTILIZATION CHINESE ACAD OF SCI