17 results about "Multi path routing" patented technology

The invention discloses a high-dynamic mobile ad hoc network communication and sensing integrated routing method, device and equipment and a storage medium, an OFDM (Orthogonal Frequency Division Multiplexing) sensing system is adopted to actively acquire feature information of neighbor nodes, and meanwhile, neighbor features passively acquired based on communication feedback are matched and fused, so that the sensing precision and efficiency in an ad hoc network are remarkably improved. In order to reduce noise interference of a wireless communication environment and realize prediction of a future state of a network, a Kalman filter is adopted to carry out dynamic filtering and state estimation on neighbor feature information. And on the basis of the processed sensing data, the node further calculates stability and effectiveness indexes of the link, inputs the stability and effectiveness indexes into a link quality comprehensive evaluation model constructed by fuzzy logic, and finally generates predictive link quality parameters to provide priori knowledge for following routing selection. And the routing efficiency and the resource utilization are optimized through an on-demand routing normal form and a multipath routing mechanism. And meanwhile, through a node early warning mechanism and a fault pre-detection mechanism, the control overhead is remarkably reduced, and the network stability is improved.

The invention relates to the field of routing algorithms of a mobile ad hoc network, discloses a multi-path routing optimization method and system for the mobile ad hoc network based on a graph attention network, and mainly solves the problem that in a traditional mobile ad hoc network, due to the fact that link characteristics and a routing scheme can generate nonlinear influence on network performance, the network performance is not influenced. And the problem of network resource waste caused by an improper routing scheme is solved. The content provided by the invention comprises a mobile ad hoc network multi-path network model, a graph attention network prediction model and a routing optimization system. The method comprises the following steps: firstly, generating path information through feature vectors of nodes and links obtained by a software defined network technology; secondly, constructing a multi-path network model of the mobile ad hoc network according to the hidden state relationship between the links and the paths; and finally, constructing a graph attention network prediction model in an application layer, thereby realizing the mobile ad hoc network multipath routing optimization method based on the graph attention network. In addition, a cross-layer routing optimization system is established according to the mobile ad hoc network multipath routing optimization method based on the graph attention network. According to the mobile ad hoc network multipath routing optimization method and system based on the graph attention network provided by the invention, node aggregation is optimized, the requirements of simultaneously learning network features and network complex structures in the mobile ad hoc network are met, the accuracy of predicting the network performance is improved, the routing strategy can be selected in an auxiliary manner, and the routing efficiency is improved. And the utilization rate of network resources is effectively improved.

The invention provides a multipath routing transmission method, system and device for reliable data communication of a multi-hop wireless network, and a medium. The method comprises the following steps: selecting an optimal reliable transmission path as a main path for routing transmission by using a Dijkstra algorithm; selecting an auxiliary path with better reliable transmission from neighbor nodes of the main path; and the main path and the auxiliary path are combined to carry out multipath routing transmission. On one hand, on the basis of a network topology structure and link quality related information, efficient selection of an optimal reliable transmission main path is realized, and multipath routing transmission between source / destination nodes is realized by constructing an auxiliary path participated by neighbor nodes on the main path, so that the reliability of data transmission is improved. And on the other hand, a Dijkstra algorithm is adopted as a basis to carry out enhanced routing design, so that the problem of serious loss of end-to-end data transmission caused by unreliable link transmission of the network can be effectively improved, and the success rate of one-time delivery of message transmission is improved.

A switching fabric uses traffic congestion information to inform its opportunistic use of non-minimal routes. An ingress port of a network switch collects traffic congestion information from the egress ports of the network switch. The traffic congestion information includes minimal and non-minimal route congestion metrics for the egress ports. Candidate egress ports for forwarding a packet to a destination node are identified. One of the candidate egress ports is selected based on the traffic congestion information. The selection process is biased to prefer some candidate egress ports over others. Particularly, the candidate egress ports that provide non-minimal routes to the destination node and have high minimal route congestion metrics are disfavored by the selection process.

The invention discloses a load balancing-oriented airborne missile group multipath reliable routing method, which belongs to the technical field of air combat platform group network communication, and comprises multipath routing generation and multipath routing service forwarding of a QoS (Quality of Service)-based comprehensive state model, the route searching comprises the step of searching a first route between a given source node and a target node pair through an OLSR (Open Link Scheduling Route) protocol; all links on the known route are eliminated, and route searching is carried out again; and eliminating the link with the maximum load on the known route, and searching the route again. According to the airborne missile group multipath reliable routing method oriented to load balancing, multipath routing is realized by properly increasing protocol overhead, so that network load balancing is realized. Meanwhile, under the condition of enemy interference, a multi-path routing mode is adopted to replace an interfered link, and reliable transmission of core information of the backbone node is ensured.

The invention relates to the technical field of wireless networking, in particular to a multipath anti-interference method for a centerless broadband ad hoc network based on random network coding. Comprising the following steps: a relay node scans a wireless spectrum to generate a networking channel quality spectrum, and generates a networking compensation instruction based on a forward link loss rate; performing network packet recombination on the basic network payload by using a local networking topology vector in response to the instruction, and generating a link transmission compensation packet; executing a fluid routing distribution strategy according to channel quality, and pushing aggregated wireless relay data streams to a multipath next hop node in parallel; the automatic retransmission request is intercepted based on the fed back valid arrival rank. Through deep coupling of network layer topology recombination and multipath routing scheduling, active compensation and low-delay transmission of link loss in a complex electromagnetic environment are realized, and the throughput and reliability of an ad hoc network are remarkably improved.

The present invention discloses a multi - path routing selection method for communication networks based on multi - agent deep reinforcement learning, including constructing a software - defined network using Mininet and Ryu software, simulating a communication network using this network, where the topological structure of the communication network includes nodes and links between nodes; establishing a multi - path routing algorithm model for the communication network, and the model includes agents deployed at nodes, and the agents are multi - agent proximal policy optimization agents; through data interaction between the agents and the software - defined network, training the agents to obtain trained agents, and further obtaining a trained multi - path routing algorithm model for the communication network; using the trained multi - path routing algorithm model for the communication network to M path decision - making for heterogeneous services, and completing the selection of multi - path routing for the communication network. The present invention has a certain anti - interference ability for different service types in the communication network and can ensure the real - time and reliable transmission of services in complex environments.

The present application relates to the technical field of wireless communication of unmanned cluster, and provides a wireless multi-hop network transmission method and system based on parallel multi-path routing, which firstly adopts an interference matrix to perform secondary screening on paths searched by a traditional multi-path routing protocol, to ensure that the screened paths have the condition of truly parallel transmission; and then converts the transmission time slot allocation problem of each node into a graph coloring problem for accurate solution, to obtain an optimal time slot allocation scheme without interference, so that truly parallel transmission of multiple paths is realized at the link layer. The present application can greatly improve the end-to-end throughput of the wireless multi-hop network of unmanned cluster, and effectively break through the transmission bottleneck of large data volume backhaul of a single node.

The invention provides a multipath routing method based on time extension graph maximum flow and an electronic device, and belongs to the technical field of communication, in the method, a maximum flow algorithm is adopted to search all augmented paths, the path selection of a subsequent routing method is congenital, and large flow can be transmitted, and in addition, the path selection efficiency is improved. When the service quality evaluation value of each target augmented path is calculated, the service type of the to-be-transmitted data is considered, and then the next network node of the to-be-transmitted data is determined according to the service quality evaluation value of each target augmented path, that is, personalized load balancing routing for different service requirements of the data is realized; according to the service type of the to-be-transmitted data, the data transmission is enabled to have the minimum path time delay, or the maximum path residual bandwidth, or the minimum path packet loss rate.

This invention relates to the field of wireless networking technology, specifically to a multipath anti-interference method for decentralized broadband ad hoc networks based on random network coding. It includes: relay nodes scanning the wireless spectrum to generate a network channel quality spectrum; generating network compensation commands based on forward link loss rate; responding to the commands by performing network packet reassembly on the basic network payload using the local network topology vector to generate link transmission compensation packets; executing a fluid routing distribution strategy based on channel quality to push the aggregated wireless relay data streams in parallel to the multipath next-hop nodes; and intercepting automatic retransmission requests based on the feedback effective arrival rank. This invention, through deep coupling of network layer topology reassembly and multipath routing scheduling, achieves proactive compensation for link loss and low-latency transmission in complex electromagnetic environments, significantly improving the throughput and reliability of ad hoc networks.

The invention relates to the technical field of data processing, and discloses a power distribution network self-healing line monitoring and self-adaptive strategy adjusting method and a related device, and the method comprises the steps: collecting the operation data of a power distribution network, and transmitting the operation data of the power distribution network through a wireless sensor network employing a multipath routing algorithm; performing key data verification processing on the operation data of the power distribution network to obtain key data of the power distribution network; performing anomaly detection on the key data of the power distribution network to obtain abnormal data of the power distribution network; performing adaptive strategy adjustment processing on the abnormal data of the power distribution network to generate a reference power distribution network adaptive strategy; performing distribution network reconstruction processing according to the reference distribution network adaptive strategy to obtain a reconstruction implementation strategy; according to the reference power distribution network self-adaptive strategy and the power distribution network self-adaptive strategy, a power distribution network simulation model is used for strategy optimization processing, a target power distribution network self-adaptive strategy is obtained, and the purposes of on-line monitoring of the power distribution network and accurate self-adaptive strategy adjustment can be achieved.

This application discloses a multipath routing method and system for unmanned aerial vehicle (UAV) swarms. The multipath routing method for UAV swarms includes the following steps: initialization; acquiring network status information and traffic characteristic information; performing priority scheduling based on the acquired network status information and traffic characteristic information to determine the scheduling queue; determining whether ground equipment can communicate directly with the UAV; if the ground equipment cannot communicate directly with the UAV, initiating a multipath routing algorithm to make multipath diversion decisions; performing multipath diversion and forwarding execution based on the multipath diversion decisions; and updating the scheduling queue after completing the multipath diversion and forwarding execution. This application achieves differentiated transmission control for different task flows through traffic characteristic awareness and priority queue mechanisms, enabling latency-sensitive tasks to be prioritized for scheduling and forwarding, thereby significantly improving the on-time arrival rate of data packets and enhancing the transmission guarantee capability of heterogeneous task flows.

The invention discloses a wireless sensor network multipath routing protocol combining energy saving and load balancing, and belongs to the field of wireless sensor network routing protocols. The existing wireless sensor network has the characteristics of large network data volume, limited node energy, large network scale and the like, but the problems of monitoring holes and transmission path breakage of the multipath routing protocol of the wireless sensor network cannot be solved by comprehensively considering the problems. A wireless sensor network multipath routing protocol combining energy saving and load balancing comprises the steps that a fitness function is designed based on a routing protocol AOMDV-FF of node minimum energy and path load, and a hop count is replaced to serve as a basis for judging whether routing is good or not; on the basis of a routing protocol AOMDV-FF, a plurality of returned routes are recombined by using a bee colony algorithm, and a multipath routing protocol AOMDV-FA based on the bee colony algorithm is designed. According to the method, the speed of searching the optimal path can be increased, the algorithm calculation speed is reduced, and the effects of saving energy consumption and prolonging the network life cycle are achieved.

This application relates to the field of shortwave ad hoc network routing optimization technology, and in particular to a multipath routing method for shortwave ad hoc networks based on node disjointness and adaptive traffic splitting. The method includes: each node exchanging messages according to a preset period to obtain one-hop neighbor information and two-hop neighbor information; constructing a comprehensive link cost model based on the current node's one-hop symmetric neighbors; modeling the shortwave ad hoc network as an original topology graph; performing a shortest path search on the original topology graph based on the comprehensive link cost to obtain primary and backup paths based on node disjointness constraints; and allocating service traffic according to the comprehensive link cost of the primary and backup paths. The method designed in this application can improve the service continuity, throughput performance, latency performance, and network robustness of shortwave ad hoc networks under conditions of sudden link degradation and rapid topology changes, while ensuring controllable routing computation complexity.

The invention relates to the technical field of routing simulation, in particular to an ad hoc network multipath routing simulation method for cross-platform parameter interaction. By constructing a weight simulation platform and a routing simulation platform, weight calculation and a routing algorithm can be independently developed on different platforms, and data synchronization is realized through socket-based communication, so that the problem of test limitation caused by platform closure in ad hoc network routing algorithm development is solved; according to the method, a multi-path routing algorithm with different weight parameters can be cooperatively developed and tested by different platforms, congestion diffusion and stability mutation are captured in advance by utilizing a space-time differential operator through space-time differential characteristics and a Monte Carlo Dropout graph convolution prediction mechanism, and network oscillation caused by prediction errors is avoided by dynamically fusing observation values and prediction values; the technical problems that at present, it is difficult to directly associate a weight routing algorithm and a multipath routing algorithm independently developed by different platforms to achieve decentralized development, so that time is saved, and cost is reduced are solved.

The invention relates to the technical field of audio signal processing and sound reinforcement, and discloses a field sound field adaptive generation system based on multi-modal stage data, which comprises a multi-modal sensing network, a central processing unit and a multi-channel sound field generation array, and is characterized in that the multi-modal sensing network is used for acquiring image depth, audio and spatial geometric data; the central processing unit constructs a dynamic acoustic voxel map and solves a sound source attitude, calculates shielding loss based on sound ray tracking, executes a routing decision between a direct path mode and a reflection path mode, and generates adaptive filter parameters and beam forming weights; the sound field generation array executes acoustic rendering, radiates physical sound waves and generates a field sound field matched with the stage environment. According to the method, visual attitude information and a multipath routing mechanism are fused, a non-line-of-sight transmission channel is constructed by using an environment reflecting surface, sound source directivity deviation is compensated in real time, the problems of coverage blind areas caused by dynamic shielding and definition reduction caused by attitude change are solved, and sound reinforcement stability in a complex stage environment is improved.

The invention discloses a high-dynamic mobile ad hoc network clustering multipath routing method, device and equipment and a storage medium, and the method comprises the steps: dynamically electing a cluster head through comprehensively considering indexes such as spatial proximity, a speed following coefficient, an average link retention rate, a correction node degree difference and an energy residual rate, and constructing an efficient cluster structure; a dynamic weight distribution mode based on an entropy method is adopted, index weights are adjusted in a self-adaptive mode according to the real-time state of the network, and it is ensured that cluster head election and routing decision are more scientific and flexible. In addition, a cluster maintenance method is also designed, and through an HELLO-ACK interaction mechanism and a backup cluster head notification mechanism, the stability and continuity of the network under the conditions of node dynamic change and fault are ensured. A multi-path routing scheme based on a clustering architecture is further established, and the fault-tolerant capability of the network and the reliability of data transmission are improved through an inter-cluster multi-path routing mechanism; by expanding a field in an RREQ message, efficient establishment of inter-cluster routing and path information aggregation are realized.