University of Otago
Wireless ad hoc networks are collections of wireless nodes that are usually battery powered and communicate with each other using radio frequency without a fixed infrastructure or centralised control. They are re-organised to have great potential in a broad range of applications, for example in disaster relief, conference, and battlefield environments. One instance of such networks is wireless sensor networks. As a whole these networks improve the accuracy of information or computation provided by individual weak sensors, and greatly extend the authors' ability to monitor and control the world. In wireless ad hoc networks, a message sent by a node is received by all nodes located within the node's transmission range.