41 results about "Neighbour discovery" patented technology

The invention discloses a self-adaptive management method and system for intelligent terminal equipment of a distributed power distribution network. According to the method, a self-organizing peer-to-peer communication network covering the whole network is constructed, and neighbor discovery and information sharing among intelligent terminal devices are achieved; the terminal independently completes control instruction calculation based on the local electrical parameters and a preset multi-objective function and optimizes an area control effect through a cooperation mechanism; introducing a self-adaptive adjustment strategy of a control algorithm; when abnormal operation is detected, the terminal can autonomously complete fault positioning and isolation, and power supply recovery is realized based on standby path judgment or micro-grid switching; the central management unit periodically carries out acceptance capacity evaluation, and terminal model parameters are aggregated in a federated learning mode; the terminal has an edge autonomous capability, and can maintain local control and data retention when communication is interrupted. The system has the characteristics of quick response, flexible structure, intelligent cooperation, high adaptability and the like, and is suitable for intelligent operation and management and control scenes of various types of power distribution systems.

The invention relates to a dynamic routing method for an underwater acoustic communication network, and the method comprises the steps: each node obtains the three-dimensional coordinates of the node in real time through a positioning module, and periodically broadcasts an enhanced neighbor discovery control packet comprising the node position, the node residual energy and the available bandwidth; the physical layer of each node determines a signal-to-noise ratio, a propagation delay and a packet loss rate according to the received enhanced neighbor discovery control packet, and updates a link state table through a shared memory; the network layer of each node reads the link state, position information and node residual energy of a neighbor node from the link state table of the shared memory, and constructs a neighbor table; when the source node sends underwater acoustic communication data to the destination node based on the neighbor table and there is no available route, route discovery is triggered to obtain a target route path; and sending the underwater acoustic communication data based on the target routing path.

The invention relates to a neighbor discovery method, device and equipment and a readable storage medium, and the method comprises the steps: automatically configuring and maintaining an agented equipment table in network equipment based on a neighbor table of a protocol stack, and when the protocol stack receives a neighbor discovery request for target equipment, carrying out the automatic configuration of the agented equipment table; under the condition that the target equipment is determined to respond to the neighbor discovery request by the network equipment proxy according to the proxy equipment table, the neighbor discovery proxy response is constructed based on the fact that the target equipment is in the communicable state, so that automatic proxy neighbor discovery in the network equipment is realized, the realization requirements of neighbor discovery in various scenes are met, and the user experience is improved. The maintenance cost is reduced, and delay and resource consumption of neighbor discovery are reduced.

The invention provides a cluster wireless ad hoc network method for port intelligent operation equipment, and belongs to the technical field of wireless communication. The method comprises the steps that firstly, port communication system layered architecture initialization is carried out, port intelligent operation equipment neighbor discovery is achieved, and meanwhile neighbor equipment access information packets and channel quality index information are recorded; secondly, performing cluster head node election through a maximum score priority rule to form a local cluster structure consisting of cluster head nodes and terminal equipment, and introducing a cluster wireless ad hoc network to complete a judgment mechanism after the cluster head node election of the intelligent operation equipment is completed; and finally, performing multi-path construction, standby path caching and a main and standby path seamless switching mechanism. The method supports dynamic election of cluster head nodes, supports multi-path cache, can realize seamless communication switching, and solves the problems of slow remote control response speed and high failure rate of port intelligent operation equipment.

The invention discloses a lightweight network neighbor discovery method and related equipment, and the method comprises the steps: enabling all equipment in a network to run a monitoring process, binding and monitoring a predetermined UDP port; when equipment in the network needs to be subjected to discovery operation, broadcasting a protocol discovery message to the local area network by the UDP port of the current equipment; and all the devices in the network receiving the broadcast receive the request through the bound UDP monitoring port, and reply own device information through a UDP response message after confirming that the devices meet reply conditions. According to the scheme, rapid identification and information acquisition can be performed on equipment in a network in a local area network or a private network environment with high efficiency and low overhead, and the problems in the prior art can be effectively solved.

The invention discloses a neighbor discovery method of a directional antenna, a readable storage medium and an electronic device, and belongs to the technical field of wireless communication, and the method comprises the steps: transmitting a signal at the maximum transmitting power, randomly scanning all beam directions, obtaining neighbor information of a discovered node, and recording the number of time slots for discovering all neighbor nodes; if the neighbor node is found, repeatedly reducing the transmitting power, randomly scanning all beam directions, updating the neighbor direction in the neighbor information, and stopping scanning when the scanning time slot reaches the time slot number; and if no neighbor node is found when scanning is stopped, stopping repeated execution. A terminal program for executing the method is stored in the readable storage medium. The electronic device comprises a memory, a processor and a computer program for executing the method. According to the invention, the main lobe direction and the side lobe direction can be distinguished without prior information, the main lobe alignment is ensured, the main lobe beam direction is accurately judged, the energy consumption required by subsequent communication is reduced, and the stability of a communication link is improved.

An AR may provide information about a neighbor AR to a STA before roaming to assist with the STA associating with the neighbor AR. The information may include a BSSID of the neighbor AR and a time until the neighbor AR rotates the BSSID. If the STA fails to discover the neighbor AR while the STA is roaming, the STA can request more information about the neighbor AR from the AR.

The invention discloses an efficient sector switching sequence generation method for directional antenna neighbor discovery and a neighbor discovery method. The sequence generation method comprises the following steps: generating a unique ID for a target network node, and converting the unique ID into a binary sequence; constructing an extended ID sequence by using the binary sequence; generating a sector switching subsequence by using the extended ID sequence and combining the available sector information, and constructing a sector switching matrix by using the sector switching subsequence; expanding the sector switching matrix according to rows to obtain a sector switching sequence of the network nodes; calculating whether node beams for sector switching by using the sector switching sequence are aligned within a preset threshold value, and if the beams are aligned within the preset threshold value, outputting the current sector switching sequence; and if the alignment of the beams is not completed, regenerating a new sector switching sequence until the alignment of the beams can be completed within a preset threshold. The efficiency of the networking method can be effectively improved, and node communication requirements in various network scenes can be met.

The invention discloses an intention perception fair recommendation method based on a federated map neural network, and relates to the technical field of recommendation systems and federated map neural networks, in particular to the intention perception fair recommendation method based on the federated map neural network. According to the technology, sequence modeling is performed on a user behavior sequence, a global intention center is generated in combination with K-means clustering, and cross-client semantic similarity driven user embedding extension is realized, so that neighbor discovery of potential intention perception is completed, and the problems of cold start and data sparsity are effectively relieved. Under a federated learning framework, a joint optimization mechanism fusing double-layer comparative learning, sorting optimization and fairness constraint is constructed, and differential privacy noise is introduced to enhance privacy protection capability. The method supports a cooperative working mode of client local training and server security aggregation, and cooperative improvement of recommendation accuracy and group fairness is realized while data privacy and system expandability are guaranteed. Experimental results show that compared with an existing fair recommendation model, the method has better fairness and recommendation performance.

The invention provides an airborne network layered directional neighbor discovery method based on communication perception integration. The method comprises the following steps: node time synchronization; initializing a node neighbor list; in the initial sensing stage, nodes send ISAC signals through narrow beams in sequence, and potential neighbor distribution information is obtained based on echoes; in the adaptive handshake stage, the node adjusts the beam selection probability and the ACK probability based on the sensing information; the node decides transceiving based on a preset probability; a sending node firstly selects a beam to send a Hello message based on a wide beam probability, and selects a beam based on a narrow beam probability only when all near neighbor nodes are found; and the receiving node selects beam interception based on the wide beam probability, returns an ACK message based on the ACK probability, and does not return an ACK message frame to the discovered neighbor. The method can reduce the message collision probability, accelerates the neighbor discovery speed, and is suitable for the technical field of military aviation communication.

This invention discloses a method and system for coordinating neighbor discovery conflicts in wireless ad hoc networks based on Q-learning. The method includes: constructing a wireless ad hoc network model and initializing its parameters; based on the initialized model parameters, determining the activation state of time slots according to the working sequence, running and updating relevant data, and determining whether to enter the next learning round based on the cumulative number of time slot activations; if entering the next learning round, calculating the average reward value and determining the node state for the next learning round, updating the Q-table, and selecting actions according to the ε-greedy policy to achieve neighbor information transmission and reception for nodes in the wireless ad hoc network model. This invention can effectively coordinate beacon conflicts and significantly improve the neighbor discovery efficiency of nodes. As a method and system for coordinating neighbor discovery conflicts in wireless ad hoc networks based on Q-learning, this invention can be widely applied in the field of communication technology.

The present invention provides a method, device and electronic device for directional neighbor discovery based on synchronous scanning, which belongs to the field of communication technology, and includes: obtaining node cluster neighbor information; inputting the node cluster neighbor information into an objective function, iteratively calculating the optimal solution of the objective function based on constraint conditions, and obtaining target configuration parameters corresponding to the optimal solution, wherein the target configuration parameters include the sector selection strategy and signal receiving and sending strategy of each node in the node cluster, and the objective function is used to minimize the average neighbor discovery time of the neighbor discovery process, or minimize the average energy consumption of the neighbor discovery process; controlling the node cluster to perform neighbor discovery based on the target configuration parameters. The directional neighbor discovery method based on synchronous scanning provided by the present invention solves the technical problems of the directional neighbor discovery method based on synchronous scanning in the related art, which has the delay and high energy consumption of the node cluster in the neighbor discovery process.

Provided are a method of estimating of the number of Bluetooth low energy (BLE) in an extended neighbor discovery process and an apparatus thereof, and a method of estimating the number of extended BLE may receive extended advertising data packets and data packets from a plurality of advertising devices, respectively based on a predetermined cycle, acquire a first candidate value, a second candidate value, and a third candidate value for the number of plural advertising devices based on a first measurement value for the number of extended advertising data packets measured, a second measurement value for the number of data packets measured based on the predetermined cycle, and a third measurement value for the number of advertising devices measured based on the predetermined cycle, and acquire information on the number of plural advertising devices based on information on the number of extended advertising data packets, information on the number of data packets, and information on the number of advertising devices related to the first candidate value, information on the number of extended advertising data packets, information on the number of data packets, and information on the number of advertising devices related to the second candidate value, and information on the number of extended advertising data packets, information on the number of data packets, and information on the number of advertising devices related to the third candidate value.

Systems and methods are described herein for automatically detecting wireless neighbor relationships within a wireless network. While a user device is using a first cell for communications, the user device detects and provides a physical cell identifier for a second cell to a computing device, e.g., the first cell or server. The computing device queries a relationship table of the first cell for a known handover relationship between the first cell and the second cell. If the table does not include the known handover relationship, the computing device instructs the user device to obtain a cell global identifier of the second cell. The computing device then adds a new handover relationship between the first cell and the second cell to the relationship table using the cell global identifier of the second cell. Communications for the user device can be automatically handed over from the first cell to the second cell.

Various embodiments herein disclose coordinating neighbor discovery between access points (APs) with auxiliary radios and APs without auxiliary radios. A corresponding wireless controller comprises a processor and a memory storing instructions that, when executed, cause the controller to perform operations. The operations comprise grouping APs into a first group of more flexible APs and a second group of less flexible APs and querying the second group of APs for a corresponding broadcast interval. The operations further comprise identifying when the second group of APs is scheduled to broadcast parameters, and a broadcast interval for each of the second group of APs and generating a schedule based on the scheduled broadcast and the broadcast interval for each of the second group of APs. The operations additionally comprise providing the generated schedule to the first group of APs and the second group of APs.

The invention discloses a cluster head replacement method based on hop counts, and relates to the technical field of wireless ad hoc network communication. The method comprises the following steps: planning a cluster head in a cluster and establishing a star network with common nodes in the cluster; the nodes in the cluster maintain respective one-hop neighbor information tables through a neighbor discovery mechanism; the common nodes in the cluster send respective one-hop neighbor information to the planned cluster head through network management information; planning cluster head calculation to obtain a whole network hop count matrix, and selecting a backup cluster head node based on the number of one-hop and two-hop neighbors of the node; the planning cluster head sends selected backup cluster head node information to all common nodes through a network management message; and when the planned cluster head is offline, the backup cluster head is upgraded into the cluster head, and the cluster head resource is occupied to perform message interaction with the common node. According to the invention, a proper backup cluster head is selected with low communication overhead and low calculation complexity. When the cluster head is offline, the backup cluster head can well maintain network operation.

An AP may provide information about a neighbor AP to a STA before roaming to assist with the STA associating with the neighbor AP. The information may include a BSSID of the neighbor AP and a time until the neighbor AP rotates the BSSID. If the STA fails to discover the neighbor AP while the STA is roaming, the STA can request more information about the neighbor AP from the AP.

The application discloses a kind of ultraviolet light communication cooperation networking method and system, comprising: all nodes in ultraviolet light network complete neighbor discovery, and establish neighbor table;The neighbor table only stores the distance information between nodes;According to the distance information stored in neighbor table, the distance from source node to destination node is obtained, and the time for transmitting each bit of data is dynamically adjusted according to the distance from source node to destination node;According to the distance information stored in neighbor table, the relay node in the shortest path from source node to destination node is selected;Data forwarding is carried out based on the adjusted time for transmitting each bit of data and the relay node in the shortest path;The application can effectively improve the throughput of network, and reduce the overall power consumption of network.

This application provides a node task execution method, apparatus, device, storage medium, and program product. The method includes: acquiring digital identity information and physical identity information of multiple nodes; the digital identity information is used to characterize the logical identity of the node in the communication domain, and the physical identity is used to characterize the entity characteristics of the node in the physical perception domain; performing consistency matching on the digital identity information and physical identity information of each node to obtain a matching result; determining a set of trusted candidate neighbor nodes based on the matching result; and executing a decision task based on the set of trusted candidate neighbor nodes. The solution of this application addresses the problem in the prior art where candidate forwarding nodes in UAV ad hoc networks are derived from ordinary neighbor discovery results, lacking verification of node identity trustworthiness.

Provided are a method of estimating of the number of Bluetooth low energy (BLE) in an extended neighbor discovery process and an apparatus thereof, and a method of estimating the number of extended BLE may receive extended advertising data packets and data packets from a plurality of advertising devices, respectively based on a predetermined cycle, acquire a first candidate value, a second candidate value, and a third candidate value for the number of plural advertising devices based on a first measurement value for the number of extended advertising data packets measured, a second measurement value for the number of data packets measured based on the predetermined cycle, and a third measurement value for the number of advertising devices measured based on the predetermined cycle, and acquire information on the number of plural advertising devices based on information on the number of extended advertising data packets, information on the number of data packets, and information on the number of advertising devices related to the first candidate value, information on the number of extended advertising data packets, information on the number of data packets, and information on the number of advertising devices related to the second candidate value, and information on the number of extended advertising data packets, information on the number of data packets, and information on the number of advertising devices related to the third candidate value.

The application discloses a kind of methods, equipment and medium for robot network-oriented neighbor discovery conflict coordination, it is related to communication technical field, method includes: initialization reference parameter and according to reference parameter, channel is listened to and conflict is detected, to update beacon quantity, beacon receiving list and conflict mark bit;According to conflict mark bit, identify conflict, when no conflict is identified, re-initialization reference parameter and according to reference parameter, channel is listened to and conflict is detected, to update beacon quantity, beacon receiving list and conflict mark bit, when conflict is identified, according to beacon quantity, conflict mark bit, preset time slot adjustment step, preset backoff window coefficient adjusts time slot length and backoff time, again according to backoff time, channel is listened to to update beacon receiving list;According to beacon receiving list, backoff time and preset beacon duration, the working state of robot is controlled.The application can adjust time slot length and backoff window according to network state and carry out conflict coordination adaptively.

Various embodiments herein disclose coordinating neighbor discovery between access points (APs) with auxiliary radios and APs without auxiliary radios. A corresponding wireless controller comprises a processor and a memory storing instructions that, when executed, cause the controller to perform operations. The operations comprise grouping APs into a first group of more flexible APs and a second group of less flexible APs and querying the second group of APs for a corresponding broadcast interval. The operations further comprise identifying when the second group of APs is scheduled to broadcast parameters, and a broadcast interval for each of the second group of APs and generating a schedule based on the scheduled broadcast and the broadcast interval for each of the second group of APs. The operations additionally comprise providing the generated schedule to the first group of APs and the second group of APs.

The invention discloses a robot communication method and device based on multi-network communication. The method comprises the following steps: constructing a multi-network communication architecture; when the current robot has a data transmission demand, acquiring real-time state information of each network communication mode in the multi-network communication architecture; distributing an optimal network communication mode for the to-be-transmitted data according to the real-time state information and a preset communication priority rule; determining a neighbor robot through a neighbor discovery mechanism; according to the current state information of the neighbor robot, dynamically adjusting and optimizing a data transmission path through a path planning strategy based on opposite learning and a black widow algorithm, and determining an optimal data transmission path; and transmitting the to-be-transmitted data to the target robot through the optimal data transmission path and the optimal network communication mode. According to the method, the network resource utilization rate is effectively improved by setting the multi-network communication priority, and the communication efficiency and stability of the robot are effectively improved by introducing the path planning strategy based on the opposite learning and the black widow algorithm.

The present invention provides a method, device and electronic device for directional neighbor discovery based on asynchronous scanning, which belongs to the field of communication technology, and includes: obtaining node cluster neighbor information; inputting the node cluster neighbor information into an objective function, iteratively calculating the optimal solution of the objective function based on constraint conditions, and obtaining target configuration parameters corresponding to the optimal solution, wherein the target configuration parameters include the sector selection strategy and listening time strategy of each node in the node cluster, and the objective function is used to minimize the average neighbor discovery time of the neighbor discovery process, or minimize the average energy consumption of the neighbor discovery process; controlling the node cluster to perform neighbor discovery based on the target configuration parameters. The directional neighbor discovery method based on asynchronous scanning provided by the present invention solves the technical problems of the directional neighbor discovery method based on asynchronous scanning in the related art, which has the delay and high energy consumption of the node cluster in the neighbor discovery process.

The application provides a wireless self-organizing network adaptive neighbor discovery method and device based on data amount, wherein the method is run in an initialization stage and a neighbor discovery stage of a subsequent time frame of network operation, and the operation of the method is performed by nodes in the network; the method comprises the following steps: selecting a single-node or multi-node beam transmission scanning mode according to the relationship between the number of nodes and the number of binary address bits of the nodes, increasing the number of scanning sub-stages of the neighbor discovery stage on demand based on the risk of beamforming frame collision, and enabling the nodes to adaptively control the execution of beam transmission scanning based on their own data amount in the process of neighbor discovery; thereby, whether in a wireless self-organizing network application occasion with a large number of nodes or a wireless self-organizing network application occasion with a small number of nodes, the control overhead can be reduced as a whole, the probability of beamforming frame collision and the probability of neighbor discovery failure can be reduced, and the time slot utilization rate of the wireless channel can be improved and the average end-to-end data packet delay can be reduced.

The present invention provides a data synchronization method in a heterogeneous multi-channel network, which is used for data synchronization between nodes in a heterogeneous multi-channel network. The method first performs bidirectional neighbor discovery on the node interconnection channel, and performs multi-channel management from the perspective of neighbors. When a neighbor relationship is first established, all contents in the synchronization database are sent to the neighbor node; in the subsequent bidirectional neighbor maintenance phase, only the summary of the synchronization database of this node is included in the neighbor detection packet; if the summary information received by the neighbor node is inconsistent with its local storage, the request information is carried in the next neighbor detection packet; when the node receives the neighbor detection packet containing the request information, the synchronization database content is sent to the optimal channel of the neighbor. When the node establishes a neighbor relationship on a new channel, the synchronization database is no longer sent. The present invention reduces the bandwidth occupancy of data synchronization in a heterogeneous multi-channel network and avoids the avalanche effect caused by retransmission when the channel is unstable.

This invention discloses a marine area communication system, relating to the field of communication technology for marine aquaculture platforms. The system includes a multi-level communication platform, a distributed adaptive networking engine, and a cross-domain, cross-media communication gateway. The multi-level communication platform integrates satellite communication modules, surface communication modules, and underwater communication modules, and possesses local edge computing capabilities. The distributed adaptive networking engine communicates with the multi-level communication platform and is used for neighbor discovery, global topology aggregation, dynamic route calculation, and automatic hub switching. The cross-domain, cross-media communication gateway communicates with the multi-level communication platform and the distributed adaptive networking engine, and is used for signal format conversion and intelligent routing between the satellite, surface, and underwater communication domains. This invention's communication system enables cross-domain collaboration between satellite, surface, and underwater communications and possesses self-awareness, self-repair, and self-optimization capabilities.

The invention discloses a node directional neighbor discovery device and method for emergency rescue application, and belongs to the field of mine emergency rescue, and the device comprises a node carrying frame, a stepping motor, a connecting flange and a radiation isolation plate; the radiation isolation plate is of a V-shaped structure, the upper V-shaped end face is fixedly connected with the connecting flange, and the lower V-shaped end face is of an open structure. The node is provided with a rod-shaped omnidirectional antenna and extends into the internal space of the radiation isolation plate through the open structure of the lower V-shaped end surface of the radiation isolation plate; the motor drives the radiation isolation plate to rotate to realize formation and rotation of a directional wave beam; the method depends on the device and is operated inside the node, and directional discovery of the neighbor node is completed by aligning and rotating beams and receiving and sending data packets in different time intervals. The device and the method provided by the invention are simple and strong in expandability, and can improve the efficiency of discovering neighbor nodes by residual nodes after disasters and constructing an emergency communication network, thereby providing help for emergency rescue.

This invention discloses a neighbor discovery method with adjustable beamwidth suitable for UAV ad hoc networks. The method first adjusts the scanning beamwidth to a wider beam and uses a random scanning algorithm to coarsely scan the neighbor information of a node. Then, based on the wide-beam scanning results, a probability distribution for narrow-beam scanning is generated. Finally, the beamwidth is adjusted to the beamwidth used for data transmission (narrow beam), and the neighbor discovery scanning process is performed according to the probability distribution. The probability distribution is adjusted based on the discovery process until the neighbor discovery process is complete. This method utilizes wide-beam scanning to quickly obtain coarse neighbor information, guiding the subsequent narrow-beam scanning process, greatly reducing the complexity of narrow-beam scanning and shortening the time required for the neighbor discovery process. Furthermore, the method protected by this application has good practicality and versatility.

The present invention discloses a routing method for indoor firefighting communications, which is specifically carried out in the following steps: Step 1: Model the wireless signal propagation model in the scenario and obtain relevant parameters; Step 2: Implement information interaction in the scenario through the neighbor discovery algorithm and estimate the link duration LET; Step 3: Improve the intra-region routing algorithm and construct an intra-region routing table based on LET; Step 4: Improve the routing discovery process and update the inter-region routing based on LET. Based on the original ZRP, the present invention combines the indoor propagation model and the node motion state to estimate the link duration, allowing the node to predict the link state, thereby maximizing the routing lifetime. Through simulation verification, the method of the present invention can reduce end-to-end delay, reduce packet loss rate and improve network throughput.