A Routing Method Based on On-Demand Distance Vector Protocol for Ad Hoc Networks

Abstract

The invention provides a routing method based on an AODV (Ad hoc On-demand Distance Vector) protocol, comprising steps: a target node obtains a path routing metric according to routing hops as well as the transmission power and the residual energy of the transmission node, extracted from a physical layer and an MAC (Media Access Control) layer by a network layer of the transmission node; a source node forwards an RREQ (Routing Request) for adding the energy entry to the target node; and the target node, after receiving the RREQ for adding the energy entry, judges the residual energy level of each transmission node; and according to the judgement result, the path with a minimum routine metric is regarded as the data transmission path, an RREP (Routing Response) for adding the routing metric is sent to the source node through the data transmission path, and the routing is established. The routing method has advantages of better energy-saving effect, stronger network survival time, better network performance and etc. and can be widely applied to an Ad Hoc network.

Description

technical field [0001] The invention relates to energy-saving technology, in particular to a routing method based on an ad hoc network on-demand distance vector protocol. Background technique [0002] The Ad Hoc network is a temporary multi-hop self-organizing network system composed of a group of wireless mobile user terminals. It meets certain specific needs with the advantages of flexible networking, wide coverage, short network construction time, and cheap nodes, such as military communications. , rescue communications, temporary field communications, etc. However, since the Ad Hoc network equipment mainly relies on battery power supply, and the host energy of the Ad Hoc network is limited, the problem of energy saving in the Ad Hoc network has become a key problem to be solved urgently. At present, the use of low-power hardware devices to reduce the energy consumption of Ad Hoc networks, such as low-power CMOS devices, low-power display technology, low-power I / O device...

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Problems solved by technology

[0004] It can be seen that in the prior art, the above-mentioned various energy-saving technologies have played a certain role in energy-saving; however, since these energy-saving technologies are all improved locally for the Ad Hoc network, the energy-saving effect is limited and the network survival time is short, so the network poor overall performance

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