Ad Hoc network is a no center self-organizing more wireless network, it does not jump to any existing fixed facilities is a foundation and can form temporary anytime network. It is a special purposes, the use of equation wireless technology, network, network nodes as its neighbor (in each other the direct communication within the scope of the node) router, through the node forwards communications between nodes.
Flexible, expands with network maintenance and operation convenience, low cost, simple and fast installation, system bestrow scope, etc. And with high of invulnerability performance, in emergency relief, the field exploration and military area has broad prospect of application. This network and ADLS or 3G network different is this is one kind has the special significance and temporary not common characteristics of can network.
AD hoc network is a group of wireless communication transceiver equipment with the mobile node component, multiple hops, temporary and centerless autonomous systems.
It has the following main features:
(1) self-organized. The network may not need any prior erection wireless communication infrastructure, all nodes through the layered agreement system and distributed algorithm, to coordinate their actions every node. Node can quickly, independent and independent networking.
(2) equivalence structure
(3) multiple hops routing
(4) topology dynamics
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