Routing in Mobile Ad hoc Networks

Autor: Fenglien Lee
Rok vydání: 2011
Předmět:
Zdroj: Mobile Ad-Hoc Networks: Protocol Design
Popis: A mobile ad hoc network (MANET), sometimes called a mobile mesh network, is a selfconfiguring network of mobile devices connected by wireless links. In other words, a MANET is a collection of communication nodes that wish to communicate with each other, but has no fixed infrastructure and no predetermined topology of wireless links. Each node in a MANET is free to move independently in any direction, and will therefore change its links to other devices frequently. Individual nodes are responsible for dynamically discovering other nodes that they can directly communicate with. Due to the limitation of signal transmission range in each node, not all nodes can directly communicate with each other. Each node must forward traffic unrelated to its own use, and therefore be a router. The primary challenge in building a MANET is equipping each device to continuously maintain the information required to properly route traffic. Therefore, nodes are required to relay packets on behalf of other nodes in order to deliver data across the network. A significant feature of ad hoc networks is that changes in connectivity and link characteristics are introduced due to node mobility and power control practices. Ad hoc networks can be built around any wireless technology, including infrared, radio frequency (RF), global positioning system (GPS), and so on. Usually, each node is equipped with a transmitter and a receiver to communicate with other nodes [Lee2009] [Wiki2010a].
Databáze: OpenAIRE
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