Mobile ad hoc networking

Whereas today’s expensive wireless infrastructure depends on centrally deployed hub-andspoke networks, mobile ad hoc networks consist of devices that are autonomously selforganizing in networks. In ad hoc networks, the devices themselves are the network, and this allows seamless communication, at low cost, in a self-organized fashion and with easy deployment. The large degree of freedom and the self-organizing capabilities make mobile ad hoc networks completely different from any other networking solution. For the first time, users have the opportunity to create their own network, which can be deployed easily and cheaply. However, a price for all those features is paid in terms of complex technology solutions, which are needed at all layers and also across several layers. For all those reasons, mobile ad hoc networking is one of the more innovative and challenging areas of wireless networking, and this technology promises to become increasingly present in everybody’s life. Ad hoc networks are a key step in the evolution of wireless networks. They inherit the traditional problems of wireless and mobile communications, such as bandwidth optimization, power control and transmission quality enhancement. In addition, the multihop nature and the lack of fixed infrastructure brings new research problems such as network configuration, device discovery and topology maintenance, as well as ad hoc addressing and self-routing. Many different approaches and protocols have
been proposed and there are multiple standardization efforts within the Internet Engineering Task Force and the Internet Research Task Force, as well as academic and industrial projects.

Từ khóa: Mobile ad hoc networking, seamless communication, wireless networking, mạng không dây, công nghệ mạng, mạng di động

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