Ad hoc is a Latin phrase meaning literally ‘for this’. In wireless communication, ad hoc refers to networks created for a particular purpose. An ad hoc network is a spontaneously decentralized wireless network that enables devices to connect with others without accessing networking infrastructures. Unlike traditional center-based cellular network that rely on a central access point to manage the flow of data, ad hoc networks are formed spontaneously and do not require a pre-existing infrastructure.

An ad hoc network allows devices to communicate directly with each other by forming a temporary network on the fly. This can be useful in situations where a pre-established network infrastructure is unavailable, impractical, or costly to implement. Ad hoc networks are often seen in scenarios like military operations, emergency response situations, or peer-to-peer communication between devices.

Ad hoc networks are used in various scenarios where the establishment of a pre-existing network infrastructure is impractical or not feasible. Here are some common use cases for ad hoc networks:

1. Emergency and Disaster Response: In situations of natural disasters or emergencies, where the existing communication infrastructure were damaged or non-existent, ad hoc networks can be quickly set up to enable communication among rescue teams, first responders, and affected individuals.

2. Vehicular Communication: Ad hoc networks can be used in vehicular communication systems, where vehicles communicate with each other to share information about road conditions, traffic, and safety alerts. This is essential for the development of intelligent transportation systems.

3. Wireless Mesh Networks: Ad hoc networks form the basis for wireless mesh networks, where each device in the network acts as a node and relays data to others. This is commonly used in community networks, rural connectivity, and scenarios where wired infrastructure is challenging to deploy.

For BelFone ad hoc solution, see AD HOC System