Mesh networking is a network topology in which nodes connect directly, dynamically, and non-hierarchically, relaying data on behalf of one another to reach destinations. Each node cooperates in routing, so the network can self-organise and self-heal around failed or moved nodes without central infrastructure. Mesh topologies are widely used in wireless sensor networks, smart-home protocols, and resilient community networks.
Overview
- In a mesh network there is no single point of failure: every node both originates traffic and forwards it for its neighbours, so packets hop from device to device until they reach their target. When a node fails or a person moves, the routing protocol discovers alternative paths and the network reconfigures itself. This self-organising, self-healing behaviour makes mesh ideal for dense sensor deployments and environments without reliable fixed infrastructure.
Key aspects
- Multi-hop relaying where each node forwards for others
- Self-organising route discovery and self-healing on node failure
- Decentralised topology with no mandatory central controller
- Protocol families such as Zigbee, Thread, and Bluetooth Mesh
- Trade-offs between coverage, latency, and per-node power consumption
Applications
- Smart-home and building-automation device networks
- Wireless sensor networks for industrial and environmental monitoring
- Resilient community and disaster-recovery networks
- Large-scale indoor positioning and asset-tracking deployments