Mesh Network Topologies for Multi-Drone Communication

Ad hoc wireless mesh network system for robust, flexible, and scalable communication in challenging environments. The system uses a mesh network topology where nodes forward data packets. Nodes can be gateways, repeaters, or terminals. The gateway connects to other networks, the repeater extends range, and terminals access services. The mesh network self-configures when nodes move or fail. It provides coverage extension, redundancy, and resilience compared to point-to-point links. The nodes have features like channel selection, video compression, error correction, and interference mitigation.

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Dual-frequency heterogeneous ad hoc network data link for reliable long-distance communication between platforms like military unmanned vehicles. The system uses a central star-shaped link over a long-range frequency like L band, and a non-central mesh link over a short-range frequency like U band. The central star link has a central node and child nodes, and the mesh link connects child nodes when their central link quality is poor or broken. This provides fallback and redundancy through the mesh link while leveraging the central star's real-time capability. The dual frequencies mitigate interference.

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Wireless control system for large networks with improved efficiency and reliability compared to conventional flooding-based methods. The system uses a hybrid network topology combining mesh and star networks. Nodes have separate roles in the mesh (routing) and star (local control) networks. This allows efficient routing around dense node clusters while avoiding collisions. Mesh nodes use multi-hop routing, star nodes have point-to-point links. The topology leverages different protocols with separate frequency bands to enable concurrent communication.

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Communication method for wireless mesh networks using LoRa technology. It involves constructing a network topology with coordinators and terminals, a wireless protocol stack, and a private communication protocol. The coordinators form a mesh network, terminals connect to them. The protocol stack has layers for physical, access, network, application. It uses LoRa for long-range transmission. The private protocol allows terminals to request addresses from coordinators. This method enables multi-hop routing between terminals via coordinators.

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Hybrid wireless sensor network system for field activities that combines long-range and short-range communication to provide reliable, flexible, and battery-efficient communication over long distances. The system has a hybrid network topology with a star network for point-to-point communication between terminals and an MESH network between gateways and relays. The star network uses fixed gateways and terminals for direct communication, while the MESH network with relays provides routing and synchronization for long-range coverage. This allows extending the range beyond terminal limits without needing relays at every hop. The hybrid topology balances range, reliability, and complexity.

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Connecting a mesh node to a mesh network when it cannot connect using the default physical layer due to range limitations. The method involves the mesh node detecting that it needs long-range connectivity, broadcasting a request, and receiving a response from another mesh node indicating support for connecting using long-range. This allows the node to request and establish a connection over a long-range bearer instead of the default one.

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Efficiently transmitting remote control signals in a wireless mesh network ad hoc network where each node can communicate with others directly. The method involves acquiring the physical links between nodes, generating broadcast routing for the remote control signal based on the links, and having each node forward the signal once in a frame using the routing. This ensures nodes receive the signal once instead of collisions when receiving from multiple sources.

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Hybrid mesh network topology that allows high throughput communication with reduced latency by using multiple physical media and relay nodes. The network has a tree structure where some links are on the primary medium and others on the secondary medium. Relay nodes initiate retransmission over both media before completing reception. This allows balancing link quality and avoiding media congestion. The tree is calculated based on network topology and link availability.

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Wireless Mesh ad hoc networking method and system that allows dynamic, flexible networking of mobile devices like drones. The system uses a master node and multiple slave nodes that can form multi-level networks. Devices join higher-level networks by requesting access from their parent node. This allows nodes to move between networks without disrupting communications. The master node manages network ID allocation and distributes it to nodes as they join. This lets nodes move between networks without losing their ID. The multi-level network structure allows temporary networks to be formed for short-lived devices like drones.

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Wireless communication system that enables faster route determination for long-distance communication in a mesh network. It allows nodes to find routes for data transmission in a mesh network by using shorter millimeter wave hops initially and then switching to longer microwave hops. Nodes send millimeter wave route searches for long-distance destinations, extract the shortest millimeter route, and then use microwave route searches for the remaining hops. This reduces the time needed to determine long routes compared to just using microwave route searches.

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Optimizing design of wireless mesh networks with both short-hop and long-hop links to balance coverage and capacity. The approach involves phased construction where initially high-capacity long-hop links provide wide area coverage with limited links. Then short-hop links are added to connect to the long-hop links and expand access. This allows efficient use of resources by leveraging long-range links for broad area reach and short-range links for dense user areas.

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Wireless device communication using a local area network Mesh topology that avoids single point of failure and provides reliable, long-range coverage. The method involves electing a master gateway based on priority and broadcasting type/sequence number. Other gateways acquire default config from master and establish channels. Devices communicate through these channels. This allows fallback if master fails, simplifies deployment, and scales with expansion.

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Narrow beam mesh networking using millimeter wave radios with point-to-point and point-to-multipoint links. The radios have separate modules for point-to-point and point-to-multipoint links. Nodes can dynamically switch between the modes based on triggers like link failures. This allows redundancy and reliability by maintaining a secondary link when a primary one fails. The narrow beams and millimeter wave frequencies provide high capacity and range. The network can also have separate layers of nodes with ultra-high-capacity links and non-ultra-high-capacity links. This allows lower cost access links to use fewer radios.

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System and method for constructing wireless mesh networks using only simultaneous transmission nodes, allowing efficient mesh network expansion without requiring dedicated mesh routers. The system uses master-slave PDU transmission in the mesh units, where nodes transmit and receive PDU's using simultaneous transmission. Nodes collect beacons containing information from other nodes. They also transmit their own beacons containing information. This allows beacons to propagate through the mesh. By using simultaneous transmission, nodes can construct the mesh without dedicated mesh routers.

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A wireless device that can dynamically switch between cellular and mesh networking based on coverage. The device uses cellular connection when in range, but if it moves out of cellular coverage, it switches to mesh networking using the mesh protocol. It configures itself as a mesh router to relay data within the mesh network. The device learns mesh connectivity info from other devices when in cellular range, and uses that to set up the mesh network when out of cellular coverage.

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A wireless apparatus and mesh network system that allows creating self-networks and mesh networks with high reliability and real-time data delivery. The apparatus has a combination of high-powered RF modules and MIMO modules for short and long range wireless communication. It uses internal and external directional and non-directional antennas connected to the modules. This allows creating versatile wireless networks for outdoor applications like monitoring without requiring antenna aiming or pre-coordination. The apparatus also has features like embedded management, security, and real-time data response.

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A multi-hop millimeter wave (mmWave) wireless communication system that enables efficient streaming of video and voice data in a multi-hop mmWave network. The system uses a mix of mmWave and wider range wireless technologies in the devices. The mmWave interface allows directive mmWave communication for short range, high bandwidth links between devices. The wider range interface enables mmWave devices to communicate over longer distances. A central management device calculates multi-hop paths using the wider range interface to connect devices over multiple mmWave hops. Devices collect neighbor info over mmWave and send it to the manager. The manager instructs devices over wider range to stream data over the calculated multi-hop mmWave path.

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Controlling network topology using multiple radios. The control includes using multiple radios to provide a mesh topology, in order to optimize latency, in order to minimize the total number of hops that packets will need to make, all nodes transmit their packets directly to the root, and in order to minimize the total number of hops that packets will need to make, each mesh connection is at a higher data rate.

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Enabling mesh devices to participate in multiple overlapping mesh networks for improved reliability and bandwidth. Mesh devices associate with their primary mesh network but also exchange neighbor info across networks. This allows calculating paths through multiple mesh networks to reach destinations. Devices forward messages between networks to bypass failures in their own network.

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Improving range, reliability, and throughput of wireless mesh networks by techniques in the intermediary nodes. These techniques involve: 1. Frequency division multiplexing (FDM) in intermediary nodes to communicate concurrently at multiple frequencies. This allows simultaneous transmission to multiple nodes on different frequencies. 2. Combining time division multiplexing (TDM) and FDM in intermediary nodes. This involves sending from an intermediary node a transmission on a different frequency during a different timeslot. 3. Dual circuitry in intermediary nodes to operate as both an access point (AP) and a station. This allows relaying messages between APs and stations. 4. Frequency reuse where nodes can use a frequency even if other nodes are using it if they are far enough away. This avoids interference. 5. Coherent combining in destination nodes where they combine transmissions

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