Mesh messaging: emergency communication during internet blackouts

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ID
147593
Owner
Briar
Uploaded by
WIPO GREEN Admin
Type
Technology
Source
User uploads
Published
2022/10/17
Updated
2022/11/22
Email Owner
Briar
Mesh-based cellular messaging allows phone-to-phone connectivity, increasing throughput, improving resilience of the network and overcoming cell tower outages.
Mesh-based apps help people connect to nearby contacts without internet access in the event of an internet blackout. This could happen for example if internet infrastructure is affected by floods. Briar, Bridgefy and Signal Offline are three such mesh-based apps. Mesh messaging, also called “off-the-grid-messaging,” enables data to be transmitted between devices over a short range (typically 50–100 meters) without needing an internet connection. By using a device’s Bluetooth or Wifi as a transport medium, the message travels between devices until it reaches its intended recipient. Briar is one such peer-to-peer technology which enables mobile devices to connect directly to each other via WiFi without any intermediate access points. Messages are encrypted for high-level privacy, which is why the app was originally intended for activists and journalists. However, the technology has potential for use in emergency situations as well.

Getty Images /© Elena Pemkute / EyeEm
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