A bit data transmission scheduling method based on a 6G space-ground integrated quantum network, a storage medium and an equipment

Abstract

The application discloses a bit data transmission scheduling method based on 6G space-ground integrated quantum network, a storage medium and equipment, and comprises the following steps: constructing a 6G space-ground integrated quantum communication network; searching for nodes meeting network scheduling task requirements in the quantum communication network, constructing a candidate node set, and screening out a determined best emission node; sending a quantum state to a receiving end through a quantum key distribution protocol at the best emission node, calculating a quantum bit error rate, selecting a candidate relay node from the candidate node set with the minimum quantum bit error rate as the target, and forming a quantum transmission channel; and the quantum transmission channel prepares a quantum key by using an entangled state, generates a random matrix density, generates a ciphertext through the random matrix density, and transmits the ciphertext to the receiving end. The application can reasonably schedule network resources, ensure data security through quantum communication, and the like.

Description

Technical Field

[0001] This invention relates to the field of network resource scheduling technology, specifically to a bit data transmission scheduling method, storage medium, and device based on a 6G integrated quantum network. Background Technology

[0002] Network resource scheduling can improve network performance, optimize resource allocation, ensure service quality, and promote the high-quality development of the digital economy. With the popularization of 5G, AI, and Internet of Things technologies, networks need to have intelligent sensing, dynamic routing, and real-time decision-making capabilities. As business needs diversify, the demand for network resources varies significantly, and network traffic fluctuates with time, location, and user behavior. By monitoring network resources in real time and dynamically adjusting network resource allocation, network congestion and waste can be avoided.

[0003] The surge in task demands can lead to bandwidth bottlenecks and network latency in network communications. Simultaneously, the widespread adoption of cloud computing and virtualization technologies exposes more potential attack points during network resource scheduling, potentially causing service interruptions or data breaches. Furthermore, traditional network resource scheduling algorithms do not adequately consider security protection and struggle to identify malicious requests disguised as normal traffic, thus posing a risk of data leakage. Summary of the Invention

[0004] To address the problems existing in the prior art, this invention provides a bit data transmission scheduling method, storage medium, and device based on a 6G integrated space-ground quantum network, which rationally schedules network resources and ensures data security through quantum communication.

[0005] To achieve the above technical objectives, the present invention adopts the following technical solution: a bit data transmission scheduling method based on a 6G space-ground integrated quantum network, comprising the following steps: Step S1: Construct a 6G integrated space-ground quantum communication network; Step S2: Find nodes in the quantum communication network that meet the network scheduling task requirements, construct a candidate node set, and select the best transmitting node; Step S3: Send the quantum state to the receiver through the quantum key distribution protocol at the optimal transmitting node, calculate the qubit error rate, and select a relay node from the candidate node set with the goal of minimizing the qubit error rate to form a quantum transmission channel; Step S4: The quantum transmission channel uses entangled states to prepare quantum keys, generates a random matrix density, and transmits the network scheduling task to the receiving end by generating ciphertext through the random matrix density.

[0006] Furthermore, the 6G space-ground integrated quantum communication network includes: a space-based network, a ground network, and a space-ground free-space QKD link for connecting the space-based network and the ground network. The space-based network adopts a hybrid networking of high, medium, and low orbit satellites and establishes inter-satellite QKD links through laser communication; the ground network establishes ground QKD links through the deployment of quantum ground stations via optical fibers.

[0007] Furthermore, step S2, which involves finding nodes in the quantum communication network that meet the requirements of the network scheduling task, is as follows: if the remaining resources of a node exceed the requirements of the network scheduling task, the node's quantum key store exceeds the quantum keys required by the network scheduling task, and the total latency of the node does not exceed the maximum tolerable latency of the network scheduling task, then the node is selected as a candidate node.

[0008] Furthermore, the process of selecting the best launch node in step S2 is as follows: construct a fitness function that includes the node's latency, resource utilization, and quantum key consumption rate, and determine the best launch node from the candidate node set with the goal of minimizing the fitness function; The fitness function Represented as:

[0009] in, Indicates node resource utilization rate. , n Indicates the resource type in the node. i express n index, Indicates the first node i The utilization rate of each resource , Indicates the first node i The maximum capacity of each resource Indicates the first node i The actual usage of each resource express Weighting coefficients; Indicates the latency of the node. , Indicates the total latency of the node. This indicates the latency in processing network resource scheduling tasks. express Weighting coefficients; The quantum key consumption rate of a node is represented. , Represents the quantum key store of a node. This represents the number of quantum keys required for the network scheduling task.

[0010] Furthermore, step S3 includes the following sub-steps: Step S3.1: Select candidate relay nodes from the set of candidate nodes other than the best transmitting node to form a candidate quantum transmission channel from the best transmitting node to the receiving end; Step S3.2: At the optimal transmitting node, randomly select the basis and key bits through the quantum key distribution protocol, encode the photons into corresponding polarization state photon sequences, and send the polarization state photon sequences to each candidate quantum transmission channel respectively; Step S3.3: The receiver in the candidate quantum transmission channel receives the polarized photon sequence, selects a measurement basis pair to measure the received polarized photon sequence, and records the measurement results; Step S3.4: Calculate the difference between the polarization state photon sequence in the optimal transmission node and the measurement results in each candidate quantum transmission channel, and calculate the bit error rate of each candidate quantum transmission channel; Step S3.5: Select the candidate quantum channel with the lowest bit error rate as the quantum transmission channel.

[0011] Furthermore, step S4 includes the following sub-steps: Step S4.1: A third party generates a set of EPR entangled pairs and sends them to the transmitter and receiver of the quantum transmission channel, respectively. The transmitter and receiver perform random basis measurements on the received qubits and retain the qubits with the same measurement basis as the original key. Step S4.2: Prepare a quantum key from the original key using a hash function, and generate a random matrix density based on the quantum key; Step S4.3: Encode the network scheduling task into a quantum state, generate ciphertext using random matrix density, and transmit it to the receiving end.

[0012] Furthermore, the set of EPR entangled pairs generated in step S4.1 Represented as:

[0013] in, This indicates that both qubits are in the ground state. This indicates that both qubits are in an excited state.

[0014] Furthermore, the process of generating the ciphertext is as follows:

[0015] in, This represents the generated ciphertext. This represents the quantum state encoded as a network scheduling task. A unitary matrix representing the density of a random matrix satisfies: , express The conjugate transpose of . Represents the density of a random matrix. , Indicates the first k The first qubit with the same measurement basis i Density operator in pure state, Indicates being in the first i The probability of a pure state.

[0016] Furthermore, the present invention also provides a computer-readable storage medium storing a computer program that enables a computer to execute the bit data transmission scheduling method based on a 6G integrated space-ground quantum network.

[0017] Furthermore, the present invention also provides an electronic device, comprising: a memory, a processor, and a computer program stored in the memory and executable on the processor, wherein when the processor executes the computer program, it implements the bit data transmission scheduling method based on the 6G integrated space-ground quantum network.

[0018] Compared with the prior art, the present invention has the following beneficial effects: (1) This invention breaks through geographical limitations and achieves full coverage by constructing a 6G integrated quantum network. At the same time, the quantum network is based on the principle of quantum mechanics. Any eavesdropping behavior will disturb the quantum state, which will be immediately detected by the two communicating parties, thus ensuring communication security. (2) This invention constructs a fitness function that includes the latency rate, resource utilization rate and quantum key consumption rate of nodes, and aims to minimize the fitness function to determine the best transmitting node from the candidate node set. Through the collaborative optimization of multi-objective fitness functions, a communication scheme with low latency, high resource efficiency and low key consumption is achieved, thereby improving the performance of quantum communication. (3) The present invention selects candidate relay nodes from the candidate node set with the goal of minimizing the bit error rate of qubits to form a quantum transmission channel. The bit error rate of qubits is a key indicator for measuring the fidelity of quantum state transmission. Using this to select a quantum transmission channel can directly reduce signal distortion and improve the reliability of quantum transmission. Attached Figure Description

[0019] Figure 1 This is a flowchart of the bit data transmission scheduling method based on a 6G integrated space-ground quantum network according to the present invention; Figure 2 This is a schematic diagram illustrating the generation of encrypted network scheduling tasks in this invention. Detailed Implementation

[0020] The technical solution of the present invention will be further explained and described below with reference to the accompanying drawings.

[0021] like Figure 1 This is a flowchart of the bit data transmission scheduling method based on a 6G space-ground integrated quantum network according to the present invention. The bit data transmission scheduling method includes the following steps: Step S1: Construct a 6G space-ground integrated quantum communication network, including: a space-based network, a ground network, and a space-ground free-space QKD link for connecting the space-based network and the ground network. The space-based network uses a hybrid network of high, medium, and low-orbit satellites, establishing inter-satellite QKD links through laser communication; the ground network establishes ground QKD links through the deployment of quantum ground stations via optical fibers. This 6G quantum communication network overcomes geographical limitations, achieving full coverage. Furthermore, based on the principles of quantum mechanics, any eavesdropping will disturb the quantum state, thus being immediately detected by both communicating parties, ensuring communication security.

[0022] Step S2: Find nodes in the quantum communication network that meet the network scheduling task requirements: If the remaining resources of a node exceed the network scheduling task requirements, the node's quantum key pool exceeds the quantum keys required for the network scheduling task, and the node's total latency does not exceed the maximum tolerable latency of the network scheduling task, then the node is selected as a candidate node. This ensures that the selected node can meet the network scheduling task requirements and improves communication efficiency. Construct a candidate node set using the candidate nodes and select the optimal transmitting node: Construct a fitness function that includes the node's latency rate, resource utilization rate, and quantum key consumption rate. Minimize the fitness function to determine the optimal transmitting node from the candidate node set. Through collaborative optimization of the multi-objective fitness function, a communication scheme with low latency, high resource efficiency, and low key consumption is achieved, improving quantum communication performance.

[0023] The latency of a node directly affects the real-time performance of communication, especially in quantum communication scenarios. Low latency ensures the fidelity of quantum states and the security of keys. Resource utilization quantifies the occupancy of node computing and storage resources, avoiding communication bottlenecks caused by node overload. Low quantum key consumption extends key lifespan, reduces key update frequency, and decreases network overhead. The fitness function in this invention... Represented as:

[0024] in, Indicates node resource utilization rate. , n Indicates the resource type in the node. i express n index, Indicates the first node i The utilization rate of each resource , Indicates the first node i The maximum capacity of each resource Indicates the first nodei The actual usage of each resource express Weighting coefficients; Indicates the latency of the node. , Indicates the total latency of the node. This indicates the latency in processing network resource scheduling tasks. express Weighting coefficients; The quantum key consumption rate of a node is represented by [value]. , Represents the quantum key store of a node. This represents the number of quantum keys required for the network scheduling task.

[0025] Step S3: At the optimal transmitting node, the quantum state is transmitted to the receiving end via the quantum key distribution protocol. The qubit error rate is calculated, and a relay node is selected from the candidate node set with the goal of minimizing the qubit error rate, forming a quantum transmission channel. The qubit error rate is a key indicator for measuring the fidelity of quantum state transmission, directly reflecting the proportion of inconsistency between the qubits at the receiving end and those at the transmitting end. By minimizing the qubit error rate to select relay nodes in the quantum transmission channel, signal distortion can be directly reduced, and the reliability of quantum transmission can be improved. This includes the following sub-steps: Step S3.1: Candidate relay nodes are selected from the candidate node set other than the optimal transmitting node to form a candidate quantum transmission channel from the optimal transmitting node to the receiving end; Step S3.2: At the optimal transmitting node, randomly select the basis and key bits through the quantum key distribution protocol, encode the photons into corresponding polarization state photon sequences, and send the polarization state photon sequences to each candidate quantum transmission channel respectively; Step S3.3: The receiver in the candidate quantum transmission channel receives the polarized photon sequence, selects a measurement basis pair to measure the received polarized photon sequence, and records the measurement results; Step S3.4: Calculate the difference between the polarization state photon sequence in the optimal transmission node and the measurement results in each candidate quantum transmission channel, and calculate the bit error rate of each candidate quantum transmission channel; Step S3.5: Select the candidate quantum channel with the lowest bit error rate as the quantum transmission channel.

[0026] Step S4: The quantum transmission channel uses entangled states to prepare a quantum key and generate a random matrix density. The network scheduling task is then transmitted to the receiving end using ciphertext generated from the random matrix density, thus improving communication security. Figure 2 This includes the following sub-steps: Step S4.1: A third party generates a set of EPR entangled pairs and sends them to the transmitter and receiver of the quantum transmission channel. Because the states of the EPR entangled pairs are strongly correlated, regardless of the spatial distance, measuring one particle will instantly affect the state of the other. If an eavesdropper attempts to intercept this particle, they will inevitably disturb the entangled pair, causing both communicating parties to detect it. The transmitter and receiver perform random basis measurements on the received qubits. Utilizing the unpredictability of random basis measurements, the third party cannot know the measurement basis in advance. Forcing a measurement will introduce additional qubit errors, triggering an alarm. The qubits with the same measurement basis are retained as the original key, ensuring that the original key generated for each communication is completely independent of the historical key, avoiding the risk of key reuse.

[0027] A set of EPR entangled pairs generated in this invention Represented as:

[0028] in, This indicates that both qubits are in the ground state. This indicates that both qubits are in an excited state.

[0029] Step S4.2: The original key is converted into a quantum key through a hash function, and a random matrix density is generated based on the quantum key, which can prevent the fixed matrix pattern from being predicted or cracked.

[0030] Step S4.3: Encode the network scheduling task into a quantum state, generate ciphertext using random matrix density, and transmit it to the receiving end. When generating ciphertext using random matrix density, its elements have high randomness and are deeply bound to the randomness of the quantum key. Even if an eavesdropper intercepts the ciphertext, they cannot reconstruct the original network scheduling task through reverse engineering, thus ensuring the security of quantum communication.

[0031] The process of generating ciphertext in this invention is as follows:

[0032] in, This represents the generated ciphertext. This represents the quantum state encoded as a network scheduling task. A unitary matrix representing the density of a random matrix satisfies: , express The conjugate transpose of . Represents the density of a random matrix. , Indicates the first k The first qubit with the same measurement basis i Density operator in pure state, Indicates being in the firsti The probability of a pure state.

[0033] In one technical solution of the present invention, a computer-readable storage medium is also provided, storing a computer program that enables a computer to execute the bit data transmission scheduling method based on a 6G space-ground integrated quantum network of the present invention.

[0034] In one technical solution of the present invention, an electronic device is also provided, including: a memory, a processor, and a computer program stored in the memory and executable on the processor. When the processor executes the computer program, it implements the bit data transmission scheduling method based on the 6G space-ground integrated quantum network of the present invention.

[0035] In the embodiments disclosed in this application, a computer storage medium may be a tangible medium that may contain or store programs for use by or in conjunction with an instruction execution system, apparatus, or device. The computer storage medium may include, but is not limited to, electronic, magnetic, optical, electromagnetic, infrared, or semiconductor systems, apparatus, or devices, or any suitable combination of the foregoing. More specific examples of computer storage media include electrical connections based on one or more wires, portable computer disks, hard disks, random access memory (RAM), read-only memory (ROM), erasable programmable read-only memory (EPROM or flash memory), optical fibers, portable compact disk read-only memory (CD-ROM), optical storage devices, magnetic storage devices, or any suitable combination of the foregoing.

[0036] Those skilled in the art will recognize that the units and algorithm steps of the various examples described in conjunction with the embodiments disclosed in this application can be implemented in electronic hardware or a combination of computer software and electronic hardware. Whether these functions are implemented in hardware or software depends on the specific application and design constraints of the technical solution. Those skilled in the art can use different methods to implement the described functions for each specific application, but such implementation should not be considered beyond the scope of this application.

[0037] The above are merely preferred embodiments of the present invention. The scope of protection of the present invention is not limited to the above embodiments. All technical solutions falling within the scope of the present invention's concept are within the scope of protection of the present invention. It should be noted that for those skilled in the art, any improvements and modifications made without departing from the principles of the present invention should be considered within the scope of protection of the present invention.

Claims

1. A bit data transmission scheduling method based on a 6G space-ground integrated quantum network, characterized in that, Includes the following steps: Step S1: Construct a 6G integrated space-ground quantum communication network; Step S2: Find nodes in the quantum communication network that meet the network scheduling task requirements, construct a candidate node set, and select the best transmitting node; Step S3: At the optimal transmitting node, transmit the quantum state to the receiving end via the quantum key distribution protocol, calculate the qubit error rate, and select a relay node from the candidate node set with the goal of minimizing the qubit error rate to form a quantum transmission channel; including the following sub-steps: Step S3.1: Select candidate relay nodes from the set of candidate nodes other than the best transmitting node to form a candidate quantum transmission channel from the best transmitting node to the receiving end; Step S3.2: At the optimal transmitting node, randomly select the basis and key bits through the quantum key distribution protocol, encode the photons into corresponding polarization state photon sequences, and send the polarization state photon sequences to each candidate quantum transmission channel respectively; Step S3.3: The receiver in the candidate quantum transmission channel receives the polarized photon sequence, selects a measurement basis pair to measure the received polarized photon sequence, and records the measurement results; Step S3.4: Calculate the difference between the polarization state photon sequence in the optimal transmission node and the measurement results in each candidate quantum transmission channel, and calculate the bit error rate of each candidate quantum transmission channel; Step S3.5: Select the candidate quantum transmission channel with the minimum bit error rate as the quantum transmission channel; Step S4: The quantum transmission channel uses entangled states to prepare quantum keys, generates a random matrix density, and transmits the network scheduling task to the receiving end by generating ciphertext through the random matrix density.

2. The bit data transmission scheduling method based on a 6G integrated space-ground quantum network according to claim 1, characterized in that, The 6G space-ground integrated quantum communication network includes: a space-based network, a ground network, and a space-ground free-space QKD link for connecting the space-based network and the ground network. The space-based network adopts a mixed networking of high, medium and low orbit satellites and establishes inter-satellite QKD links through laser communication. The ground network establishes ground QKD links through the deployment of quantum ground stations via optical fibers.

3. The bit data transmission scheduling method based on a 6G space-ground integrated quantum network according to claim 1, characterized in that, Step S2, which involves finding nodes in the quantum communication network that meet the requirements of the network scheduling task, is as follows: if the remaining resources of a node exceed the requirements of the network scheduling task, the node's quantum key store exceeds the quantum keys required by the network scheduling task, and the total latency of the node does not exceed the maximum tolerable latency of the network scheduling task, then the node is selected as a candidate node.

4. The bit data transmission scheduling method based on a 6G space-ground integrated quantum network according to claim 1, characterized in that, The process of selecting the best launch node in step S2 is as follows: construct a fitness function that includes the node's latency, resource utilization, and quantum key consumption rate, and determine the best launch node from the candidate node set with the goal of minimizing the fitness function; The fitness function Represented as: in, Indicates node resource utilization rate. , n Indicates the resource type in the node. i express n index, Indicates the first node i The utilization rate of each resource , Indicates the first node i The maximum capacity of each resource Indicates the first node i The actual usage of each resource express Weighting coefficients; Indicates the latency of the node. , Indicates the total latency of the node. This indicates the latency in processing network resource scheduling tasks. express Weighting coefficients; The quantum key consumption rate of a node is represented. , Represents the quantum key store of a node. This represents the number of quantum keys required for the network scheduling task.

5. A bit data transmission scheduling method based on a 6G space-ground integrated quantum network according to claim 1, characterized in that, Step S4 includes the following sub-steps: Step S4.1: A third party generates a set of EPR entangled pairs and sends them to the transmitter and receiver of the quantum transmission channel, respectively. The transmitter and receiver perform random basis measurements on the received qubits and retain the qubits with the same measurement basis as the original key. Step S4.2: Prepare a quantum key from the original key using a hash function, and generate a random matrix density based on the quantum key; Step S4.3: Encode the network scheduling task into a quantum state, generate ciphertext using random matrix density, and transmit it to the receiving end.

6. A bit data transmission scheduling method based on a 6G integrated space-ground quantum network according to claim 5, characterized in that, The set of EPR entangled pairs generated in step S4.1 Represented as: in, This indicates that both qubits are in the ground state. This indicates that both qubits are in an excited state.

7. A bit data transmission scheduling method based on a 6G integrated space-ground quantum network according to claim 5, characterized in that, The process of generating the ciphertext is as follows: in, This represents the generated ciphertext. This represents the quantum state encoded as a network scheduling task. A unitary matrix representing the density of a random matrix satisfies: , express The conjugate transpose of . Represents the density of a random matrix. , Indicates the first k The first qubit with the same measurement basis i Density operator in pure state, Indicates being in the first i The probability of a pure state.

8. A computer-readable storage medium storing a computer program, characterized in that, The computer program causes the computer to execute the bit data transmission scheduling method based on a 6G space-ground integrated quantum network as described in any one of claims 1-7.

9. An electronic device, characterized in that, include: The memory, the processor, and the computer program stored in the memory and executable on the processor, wherein when the processor executes the computer program, it implements the bit data transmission scheduling method based on a 6G integrated space-ground quantum network as described in any one of claims 1-7.

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