49 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.

Embodiments of the present application provide a cross-node data transmission method and a related device, which are applied to a relay node of an ad hoc network. The method comprises : upon completion of neighbor discovery between a relay node and an adjacent node, receiving a routing diffusion message sent by the adjacent node, and authenticating the routing diffusion message on the basis of node one-way authentication information in the routing diffusion message; if the authentication result is that the routing diffusion message is sent by the adjacent node, establishing a correspondence between the adjacent node and challenge information; then receiving a data packet sent by the adjacent node, and verifying the data packet on the basis of the challenge information corresponding to the adjacent node; if the data packet is sent by the adjacent node, updating the data packet to obtain a forwarding packet; and sending the forwarding packet to the next hop node. In the process, two-way authentication does not need to be carried out between two adjacent nodes, so that the number of two-way authentications is reduced; and the relay node for forwarding a data packet does not need to decrypt and encrypt forwarded data, so that the energy consumption and transmission delay of nodes 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 provides a directional neighbor discovery method and device based on asynchronous scanning and electronic equipment, and belongs to the technical field of communication, and the method comprises the steps: obtaining node cluster neighbor information; the neighbor information of the node cluster is input into a target function, the optimal solution of the target function is iteratively calculated based on constraint conditions, target configuration parameters corresponding to the optimal solution are obtained, and the target configuration parameters comprise a sector selection strategy and a listening time strategy of each node in the node cluster; the target function is used for minimizing the average neighbor discovery time of the neighbor discovery process or minimizing the average energy consumption of the neighbor discovery process; and controlling the node cluster to execute neighbor discovery based on the target configuration parameters. According to the directional neighbor discovery method based on asynchronous scanning provided by the invention, the technical problems of delay and relatively high energy consumption of a node cluster in a neighbor discovery process in a directional neighbor discovery method based on asynchronous scanning in related technologies are solved.

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 present invention provides a method and device for discovering neighbors of virtual machines in a cluster environment, which obtains performance parameters and network parameters of the cluster environment, and adjusts cache parameters of the server cache mapping relationship corresponding to each virtual machine based on the performance parameters and network parameters; for a target virtual machine, the timestamp of the data contained in the first target mapping relationship in the corresponding database is updated based on the corresponding cache parameters, and the second target mapping relationship in the corresponding server cache is updated based on the timestamp; when a life cycle event occurs, the first target mapping relationship and the second target mapping relationship are respectively changed based on the life cycle event; when communication with neighbors is required, the target IPv6 address is obtained, and the target MAC address corresponding to the target IPv6 address is obtained based on the second target mapping relationship. The present invention can alleviate the problems of low efficiency of neighbor discovery, waste of resources, and decreased network performance existing in traditional NDP in a large-scale cluster environment.

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.

The invention discloses a sub-network convergence method of a self-organizing network based on a multi-beam directional antenna, which comprises the following steps of: 1, setting different silence time for each sub-network, so that the communication states of nodes in different sub-networks in a neighbor discovery period are not completely the same; 2, defining a specific neighbor discovery time period communication state change period of the subnet, and increasing the effective interaction time among the nodes in the neighbor discovery time period by reversing the communication states of all the nodes in the subnet in the neighbor discovery time period; according to the invention, the problem that neighbor discovery cannot be carried out due to consistent communication states of the nodes or handshake cannot be carried out after beam alignment between the nodes due to insufficient communication duration is solved, so that more stable and efficient data transmission can be realized, and the self-adaptive capability and expansibility of the network are enhanced; and various application scenes in a large-scale and dynamic environment can be effectively supported.

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 invention discloses a wireless ad hoc network resource scheduling simulation method based on position information, link establishment in subnets is carried out according to a fixed allocation time slot strategy, after initial network establishment in the subnets is completed, a DQN-based beam scanning algorithm is adopted in the link establishment stage between the subnets, and the link establishment stage is applied in an actual scene based on an offline training mode. Model parameters after offline training are stored in nodes, a local airspace resource adjacency state table and a received neighbor node adjacency state table serve as input in the actual flight process, beam pointing of the nodes in the next time slot is guided, the neighbor discovery process is accelerated, and finally an airspace resource adjacency state table of the nodes between subnets is formed. And dynamic updating is carried out. According to the invention, the beam pointing is updated by using the node position information in the multi-node flight process in the network so as to improve the neighbor discovery efficiency, and meanwhile, the efficient transmission of the link is maintained in the node flight process.

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.

The invention provides a directional neighbor discovery method and device based on synchronous scanning and electronic equipment, and belongs to the technical field of communication. The neighbor information of the node cluster is input into a target function, the optimal solution of the target function is iteratively calculated based on constraint conditions, target configuration parameters corresponding to the optimal solution are obtained, and the target configuration parameters comprise a sector selection strategy and a signal receiving and sending strategy of each node in the node cluster; the target function is used for minimizing the average neighbor discovery time of the neighbor discovery process or minimizing the average energy consumption of the neighbor discovery process; and controlling the node cluster to execute neighbor discovery based on the target configuration parameters. According to the directional neighbor discovery method based on synchronous scanning provided by the invention, the technical problems of delay and high energy consumption of a node cluster in a neighbor discovery process in a directional neighbor discovery method based on synchronous scanning in related technologies are solved.

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.

The invention relates to the technical field of wireless communication, and discloses an air-sea cross-domain communication network routing method, which combines the characteristics of an overwater radio network and an underwater acoustic network, designs a routing mechanism based on a two-hop neighbor table by cooperating with air, water and underwater nodes, effectively solves the problem of routing voids, and improves the communication efficiency. The method comprises a neighbor discovery part and a routing strategy part, wherein the neighbor discovery part maintains a two-hop neighbor table of a node through a periodic HELLO message and a timer mechanism; a routing strategy is designed for an underwater acoustic network, a water radio network and a cross-domain communication scene, and efficient and reliable data transmission is realized by adopting priority ranking and a multi-hop transmission mechanism. According to the air-sea cross-domain communication network routing method provided by the invention, the end-to-end communication time delay is remarkably reduced, the robustness and the transmission efficiency of the network are improved, and a low-time-delay and high-reliability routing solution is provided for the air-sea cross-domain communication network.

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.