What is Wireless ad hoc network?

A wireless ad hoc network is a decentralized wireless network.[1] The network is ad hoc because each node is willing to forward data for other nodes, and so the determination of which nodes forward data is made dynamically based on the network connectivity. This is in contrast to wired networks in which routers perform the task of routing. It is also in contrast to managed (infrastructure) wireless networks, in which a special node known as an access point manages communication among other nodes.

Refrence:http://en.wikipedia.org/wiki/Wireless_ad_hoc_network