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A mobile ad hoc network routing method and device based on energy optimization

An energy optimization and network technology, applied in the field of wireless communication, can solve problems such as network paralysis, network link instability, node failure, etc., and achieve the effect of reducing the number of routing failures, avoiding network paralysis, and promoting balanced use

Active Publication Date: 2021-05-07
XIDIAN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In a mobile ad hoc network, the supply of node energy is not infinite. If the node energy is exhausted before routing maintenance, the node will fail, and then the routing discovery process needs to be restarted, which further improves the network performance. Constituting a limiting factor
Generally speaking, nodes with relatively busy services are prone to energy shortages. For example, one or more hop paths use a node for data forwarding at the same time, resulting in faster energy consumption or even exhaustion of the node.
This phenomenon will shorten the effective working time of the network, lead to unstable network links, and even lead to the paralysis of the entire network, affecting the normal operation of the network

Method used

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  • A mobile ad hoc network routing method and device based on energy optimization
  • A mobile ad hoc network routing method and device based on energy optimization
  • A mobile ad hoc network routing method and device based on energy optimization

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Embodiment 1

[0048] See figure 1 , figure 1 It is a schematic flowchart of an energy optimization-based mobile ad hoc network routing method provided by an embodiment of the present invention.

[0049] Get the energy level E of the node.

[0050] The routing algorithm designed by the present invention works on the network layer, and the cross-layer design idea is combined here. See figure 2 , figure 2 It is a schematic diagram of the protocol stack model when designing the routing algorithm provided by the embodiment of the present invention.

[0051] When the source node has a communication data request for route discovery, it first checks whether all the entries in its own routing table have an active entry containing the destination node, if there is, it can directly use the corresponding route, if not, it must broadcast RREQ message finds available routes.

[0052] During the route discovery process, the node will send a query to the MAC layer to obtain the energy information i...

Embodiment 2

[0085] Another embodiment of the present invention provides specific operations of different nodes in the routing discovery process of an energy-optimized mobile ad hoc network routing protocol. See Figure 5 , Figure 5 It is a schematic diagram of a node process provided by an embodiment of the present invention.

[0086] Route discovery is performed when there is a communication data request in the network. First, the source node checks whether all the entries in its own routing table have an active entry containing the destination node. If there is, it can directly use the corresponding route for data transmission. If not, the source node generates a RREQ message. The message includes The energy level information E of the node and the link energy level information ELWT under the equalization strategy are broadcast to the whole network after initialization. After receiving the RREP message of the destination node, the corresponding path is selected for data transmission....

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Abstract

The invention discloses a mobile ad hoc network routing method based on energy optimization, comprising: obtaining the energy level E of each node; obtaining the path balanced energy level RELWT according to the energy level E of the node; selecting the path balanced energy level The smallest path is used as the optimal path to transmit data. The present invention is based on the classic AODV protocol, and uses the algorithm and strategy of the present invention to perform route discovery and route maintenance on key points. The compromise promotes the balanced use of network energy, avoids the excessive use of energy of some nodes and leads to broken links, reduces the number of routing failures, makes the link more stable, and also avoids the premature exhaustion of energy of some nodes The resulting paralysis of the entire network prolongs the life of the network.

Description

technical field [0001] The invention belongs to the technical field of wireless communication, and in particular relates to a mobile ad hoc network routing method and device based on energy optimization. Background technique [0002] With its unique flexibility, convenience and high efficiency, wireless network has become a rapidly growing field of communication in recent years, and it is also one of the important development directions. Ad hoc network technology is a mode of wireless network, it has the following advantages: no strict control center, in the case of a single or part of the node failure, it will not affect the communication of other nodes; independent network nodes self-organize the network, do not rely on It is based on a fixed communication facility network; multi-hop routing is completed by ordinary network nodes, without special routing equipment; it has the ability to dynamically reconfigure routes when topology changes, and nodes can move independently ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04W40/10H04W40/24H04W84/18
CPCH04W40/10H04W40/246H04W84/18Y02D30/70
Inventor 相征张阿鑫任鹏
Owner XIDIAN UNIV
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