Mobile Ad hoc NETwork in short called as MANET. Ad hoc network is used where there is no static network. That is network topology will vary as the node (Ex. Mobile) moves from one place to another place. So this is used mainly for the Mobile or Portable Devices....

Mallikarjuna M Dongre

Mobile ad hoc networks refer to the networks that cellphones and other mobile devices are connected to. Laptops and computers may also connect to such networks by means of tethering to a mobile device.

we have an ad hoc network.

An ad-hoc network does not require an access point. Typically, if an access point is involved then it is not strictly an ad-hoc network, but would be an infrastructure network.

AD-HOC network