Monday, March 29, 2010

wireless nodes

Mobile Ad Hoc Network (MANET), composed of wireless nodes as the main computer and router, is a wireless multi-hop network without pre-established infrastructure. All nodes of the network have equal status and functions. The MANET has no central controller and is fully distributed architecture. Because of its convenience, quickness and robust, the MANET can be applied to disaster relief, military mobile communications, such as non-communication infrastructure of the provisional occasions.Ad Hoc network's key technologies relate to each level of OSI model, there are lots of best clothes blog research problems. Routing technology is particularly important in these problems, while routing technology is also one of the most important factors which impact the overall discount wedding prom dresses performance of the network. Traditional routing protocols used in wired networks is no longer adapt to dynamic changes in Ad Hoc network topology, we must design new wedding dresses form china Ad Hoc network routing protocols.In accordance with the working mechanism of the existing routing protocol, the existing Ad Hoc network routing protocols can be divided into four dresses 1std categories: proactive routing protocols, on-demand routing protocols, hybrid routing protocols and the wedding dresses 2nd routing protocols using geographic information. Proactive routing protocols play good performance when the Ad Hoc network's movement is not strong and the occasions launched many operations. On-demand routing protocols are just on the contrary. So proactive routing protocols and on-demand routing protocols have their own advantages, but also have their own disadvantages; the routing protocols using geographic information require the support of hardware conditions; hybrid routing protocols haven't the restriction of hardware conditions, combine the advantage of proactive protocols and on-demand protocols, but avoid the disadvantage of both.
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