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CN-122002291-A - High-robustness wireless network communication method and device of anti-interference and anti-counterfeiting base station

CN122002291ACN 122002291 ACN122002291 ACN 122002291ACN-122002291-A

Abstract

The invention belongs to the technical field of wireless communication, discloses a high-robustness wireless network communication method and device of an anti-interference and anti-counterfeiting base station, and aims to solve the problems that an existing multi-hop wireless network is easy to be interfered, the anti-counterfeiting base station is weak and the robustness is insufficient. The method comprises the steps of constructing a network node trust system, realizing pseudo base station identification through multidimensional verification, generating a network connection diagram based on an adjacency list, judging strong connectivity through disconnecting adjacency routing node connection, configuring a redundant communication link in a targeted manner, and guaranteeing the stability of a communication channel by adopting a dynamic spectrum sensing and interference avoidance strategy. According to the invention, through the trinity design of pseudo base station identification-redundant link construction-interference avoidance, stable communication can be maintained under the conditions of node disconnection, malicious interference or pseudo base station invasion, the robustness and the safety of the multi-hop wireless network are obviously improved, and the method is suitable for the conditions of fire protection, chemical industry and the like with extremely high requirements on communication reliability.

Inventors

  • JIANG PENGTAO
  • WU PENG
  • WANG SILIANG

Assignees

  • 山东省信息产业服务有限公司

Dates

Publication Date
20260508
Application Date
20260204

Claims (10)

  1. 1. The high-robustness wireless network communication method of the anti-interference and anti-counterfeiting base station is characterized by comprising the following steps of: 1) The network node initialization and trust system construction comprises the steps of acquiring identity information, hardware characteristics and communication parameters of all nodes in a multi-hop wireless network, establishing a node trust database, and defining a trust threshold; 2) The pseudo base station identification and filtering, namely performing multidimensional checking on the network access node, and judging the network access node to be a pseudo base station and refusing the pseudo base station to access the network if the checking result is lower than the trust threshold; 3) Obtaining a network adjacency list and generating a first communication graph, selecting any two adjacency routing nodes as target nodes, disconnecting the two adjacent routing nodes to generate a second communication graph, and judging whether the second communication graph is a strong communication graph through a preset algorithm; 4) If the second communication graph is a non-strong communication graph, configuring redundant connection for the target node through a node transmitting power adjustment or leaf node routing activation mode, and generating a third communication graph; 5) And the dynamic anti-interference communication is to sense the interference intensity of a communication channel in real time, switch to a standby channel and update the redundant link parameters when a plurality of interference intensities exceed a preset threshold value, and maintain the communication continuity.
  2. 2. The method for high robustness wireless network communication of anti-interference and anti-counterfeiting base station according to claim 1, wherein in the step 1, the node identity information comprises a node unique identifier ID and an encryption certificate, the hardware features comprise a MAC address and radio frequency module parameters, and the communication parameters comprise a transmission power range and a communication frequency band.
  3. 3. The method for high robustness wireless network communication of an anti-interference and anti-counterfeiting base station according to claim 1, wherein the multi-dimensional verification in step 2 comprises: 1) Verifying the validity of an encryption certificate of an access node and the matching degree of a unique Identification (ID) and a trust database; 2) Hardware feature verification, namely comparing the consistency of the MAC address of the access node, the radio frequency module parameter and the trust database; 3) And checking communication behaviors, namely detecting whether the communication frequency band and the signal modulation mode of the access node meet the preset network specification.
  4. 4. The method for high robustness wireless network communication of anti-interference and anti-counterfeiting base station according to claim 1, wherein the preset algorithm in the step 3 comprises at least one of Kosaraju algorithm and Tarjan algorithm, and the decision criterion of the strong connectivity graph is that at least one loop exists in the directed graph, and the loop comprises all nodes in the graph.
  5. 5. The method for high robustness wireless network communication of an anti-interference and anti-counterfeiting base station according to claim 1, wherein the configuring the redundant connection for the target node in the step 4 comprises: 1) The power adjustment mode comprises the steps of improving the transmitting power of a first node in a target node, acquiring any adjacent node of a second node as a third node, and improving the transmitting power of the third node to enable the first node and the third node to form communication connection; 2) And the route activation mode is to acquire any leaf node of the first node as a fourth node, control the fourth node to enter a route working mode and enable the fourth node to form communication connection with the second node.
  6. 6. The method for high robustness wireless network communication of anti-interference and anti-counterfeiting base station according to claim 1, wherein in step 5, an energy detection method is adopted for dynamic spectrum sensing, signal to noise ratio and interference signal strength of a current communication channel are monitored in real time, and the standby channel is screened in advance through spectrum cavity detection, so that channel quality is ensured to meet communication requirements.
  7. 7. A highly robust wireless network communication device of an anti-interference and anti-counterfeiting base station, comprising: 1) The trust system construction module is used for storing node identity information, hardware characteristics and communication parameters, and establishing and updating a node trust database; 2) The pseudo base station identification module is used for carrying out multidimensional verification on the access node, judging the pseudo base station and rejecting the access of the pseudo base station; 3) The communication diagram processing module is used for acquiring a network adjacency list, generating a first communication diagram and a second communication diagram, and judging whether the second communication diagram is a strong communication diagram or not through a preset algorithm; 4) The redundant link configuration module is used for configuring redundant connection in a power adjustment or route activation mode when the second communication graph is a non-strong communication graph to generate a third communication graph; 5) And the anti-interference communication module is used for sensing the channel interference intensity in real time, switching the standby channel and updating the redundant link parameters.
  8. 8. The high robustness wireless network communication device of claim 7, wherein the pseudo base station identification module comprises an identity verification unit, a hardware feature verification unit, and a communication behavior verification unit, and performs identity information matching, hardware parameter comparison, and communication behavior detection, respectively.
  9. 9. The high robustness wireless network communication device of claim 7, wherein the redundant link configuration module comprises a power adjustment unit and a routing activation unit, wherein the power adjustment unit is configured to increase the transmission power of the target node and the third node, and the routing activation unit is configured to control the leaf node to enter a routing operation mode.
  10. 10. A terminal device comprising a memory, a processor and a computer program stored in the memory and executable on the processor, characterized in that the processor implements the steps of the method according to any of claims 1-6 when the computer program is executed.

Description

High-robustness wireless network communication method and device of anti-interference and anti-counterfeiting base station Technical Field The invention belongs to the technical field of wireless communication, and particularly relates to a high-robustness wireless network communication method and device of an anti-interference and anti-counterfeiting base station, which are suitable for a multi-hop wireless network, in particular to fire fighting, chemical industry, emergency rescue and other scenes with extremely high requirements on communication safety and stability. Background The multi-hop wireless network is used as a communication network without a center and a peer-to-peer structure, nodes can be added or separated at any time, and the multi-hop wireless network has strong survivability and is widely applied to various key fields. However, the existing multi-hop wireless network still has three main core problems of weak anti-interference capability, easiness in external electromagnetic interference and co-frequency signal interference in the communication process, interruption or error of data transmission, lack of an effective pseudo base station identification mechanism, easiness in access network steal data or mislead communication by a malicious pseudo base station, safety risk initiation, and insufficient robustness, and when any routing node in the network drops, the associated leaf node may lose connection with the network, so that a communication link is broken. In key scenes such as fire protection, chemical industry and the like, serious safety accidents may be caused by communication interruption or interference, so that a wireless network communication scheme with anti-interference, anti-counterfeiting base station functions and high robustness is needed, and the defects of the prior art are overcome. Disclosure of Invention The invention aims at the problems, and provides a high-robustness wireless network communication method and device of an anti-interference and anti-counterfeiting base station, which realize multiple targets of the anti-interference, anti-counterfeiting base station and high robustness through the integrated design of pseudo base station identification, redundant link construction and interference avoidance. In order to achieve the aim, the invention adopts the technical proposal that, The invention provides a high-robustness wireless network communication method of an anti-interference and anti-counterfeiting base station, which comprises the following specific steps: 1. network node initialization and trust system construction When the network is started, identity registration is carried out on all legal nodes, information such as unique identification ID, encryption certificate (issued by authority), MAC address, radio frequency module parameters, transmitting power range, communication frequency band and the like of the nodes is collected, a node trust database is established, and trust thresholds (such as 85 minutes and 100 minutes are fully distributed) are set. The trust database is updated in real time, and the support node is newly added and registered and the failure node is de-registered. 2. Pseudo base station identification and filtering When a node requests to access a network, the pseudo base station identification module performs multidimensional checking on the pseudo base station identification module: Verifying whether the encryption certificate of the access node is valid or not, whether the unique identification ID exists in a trust database or not, and deducting 20 minutes if the matching degree is lower than 90%; hardware feature verification, namely comparing the consistency of the MAC address of the access node, the parameters of the radio frequency module and the trust database, wherein each item of inconsistency is deducted by 15 points; And (3) checking communication behaviors, namely detecting whether the communication frequency band and the signal modulation mode of the access node meet the preset standards of the network, and if not, deducting 30 minutes. If the three check total points are lower than the trust threshold (85 points), the pseudo base station is judged to be refused to access the network, and if the total points reach the standard, the node state in the trust database is allowed to be accessed and updated. 3. Connected graph generation and robustness detection The access node acquires a network adjacency list through a neighbor discovery protocol, the adjacency list records the adjacent relations of all nodes, and a first communication graph (the nodes are marked by circles and the adjacent nodes are marked by edges) is generated according to the adjacency list and a GIS model. And selecting any two adjacent routing nodes in the adjacency list as target nodes, disconnecting the two adjacent routing nodes and generating a second communication graph. Judging whether the second connected graph is a strong connected graph