Mobile ad hoc networks (MANET) allow wireless interconnection of devices, with each device acting as a node. MANETs are self-configuring and can be useful in applications such as ad hoc vehicular networks (VANET) and intelligent ad hoc vehicular networks (InVANET) for traffic data, efficient vehicle-to-vehicle communication, and off-grid communication. InVANET can also use Wi-Fi technologies for tracking and location in GPS ineffective areas.
Mobile ad hoc networks (MANET) are systems that allow a variety of computers and other devices to interconnect wirelessly. They operate similarly to other ad hoc wireless networks, although special arrangements may be made to handle each part of the network moving freely in relation to all other parts. In an ad hoc mobile network, each computer or other device typically acts as a node to facilitate communications within the system. This could allow every computer on the network to communicate with every other computer, although the data path could vary depending on factors such as wireless signal strength and the physical location of components.
MANETs tend to be self-configuring, as components can be moved, added, or removed dynamically. The network will typically be able to continue to use networked computers as functional routers regardless of their location in the physical space, unless they are moved out of wireless range of other components. Other correctly configured computers can usually join the network when they come within wireless range.
There are several applications where ad hoc mobile network is useful or may become useful in the future. One particular area where an ad hoc mobile network may be suitable is in motor vehicles. A technology known as ad hoc vehicular network (VANET) uses the principles behind MANET to network moving cars. In such a system, each vehicle is a node in the network that can retrieve or transmit data. This ad hoc mobile network could also be connected to various street installations, allowing access to the Internet and related applications.
Another similar type of mobile ad hoc network can be referred to as intelligent ad hoc vehicular network (InVANET). Rather than simply networking moving vehicles with each other and the internet, a system like this is meant to accomplish things that affect driver safety and convenience. An InVANET system can provide various forms of traffic data, allowing the driver or the vehicle itself to find the least congested routes. It could also provide efficient vehicle-to-vehicle communications, or even off-grid communications via connected roadside installations. The use of Wi-Fi technologies in an InVANET could also allow tracking and location of vehicles in areas such as tunnels and other locations where Global Positioning System (GPS) units may be ineffective.
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