Routing method for ad hoc network with low power consumption based on location information

Abstract

The invention discloses a low-power consumption self-organized network routing method based on location information. The main realization steps are as follows: 1, constructing and sending RREQ by a source node; 2, judging whether a receiving node location or a prediction location is in a request region; 3, further judging which candidate area the this neighbor node is; 4, forwarding the RREQ by the node in the first candidate area, wherein the nodes in the second and the third candidate areas firstly monitor whether the forwarding RREQ is in the first candidate area and then decide whether toforward; 5, ending a timer, and re-planning the request region if the source node does not receive the RREP, and sending the RREQ to perform routing reestablishment; and 6, accomplishing the routing establishment when the source node receives the RREQ. Through the method disclosed by the invention, a stable and efficient routing is established by taking the location information as the auxiliary measure of the routing establishment, the flooding range is reduced in the routing establishment process, the overall power consumption is effectively reduced, and an aim of low consumption is realized.

Description

Technical field [0001] The present invention belongs to the field of communication technology, and further relates to an ad hoc network routing method based on location information and low power consumption in the field of wireless communication technology. The invention can be applied to establish an efficient and stable path in a wireless ad hoc network. Background technique [0002] Routing technology is a very critical technology in ad hoc networks, and it is very important to the efficiency of data forwarding, time delay and the performance of the entire system. Common routing technologies include AODV, DSR, LAR, OLSR, etc. Among them, AODV and DSR are on-demand routing. When there is a request for data transmission, a routing request will be initiated. It is usually necessary to complete the routing search through the node broadcast flood routing request packet This will cause a large amount of routing information to be transmitted in the network, and many nodes themselves...

AI Technical Summary

Problems solved by technology

However, the disadvantage of this method is that because the method broadcasts its neighbor node information to each other through the nodes of the ad hoc network, the broadcasting method used for information interaction makes the global node always in the working state, resulting in The increase in global power consumption reduces the service life of nodes and makes the entire network unable to work normally

However, the disadvantage of this method is that the establishment of the route is only based on the stability of the link, the selected path is relatively lengthy, and the efficient path cannot be selected, which is not ideal in terms of reducing power consumption.

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