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Energy-efficient wireless sensor network routing algorithm

A routing and energy technology, applied in wireless communication, advanced technology, energy consumption reduction, etc., can solve problems that are not suitable for large-scale scene applications

Inactive Publication Date: 2012-11-28
JIANGNAN UNIV
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Problems solved by technology

But it is not suitable for large-scale scene applications, and the maintenance of dynamic cluster heads brings additional overhead to the entire network

Method used

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Embodiment Construction

[0030] In order to make the above objects, features and advantages of the present invention more obvious and comprehensible, the present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0031] refer to figure 1 , in the new algorithm, after the RN-node receives the data packet, it does not directly forward it to the parent node, but uses the improved Cluster-Tree algorithm for the RN-node to process it. Let the local node be S and the target node be D. The process of finding forwarding nodes is as follows:

[0032] (1) S searches the neighbor table, if D is a neighbor node of S (including the parent node of S), then directly forwards the data to this neighbor node. Otherwise, execute (2);

[0033] (2) If the destination node D is the child node of the neighbor node of S node, then send it to the neighbor node; if D is the descendant node of multiple neighbor nodes of S, then select the node with the...

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Abstract

The invention discloses an energy-efficient wireless sensor network routing algorithm, belonging to the fields of wireless ad hoc networks and sensor networks. A neighbour table is introduced, a cluster tree distributed address allocation mechanism is utilized for transferring data packets, a rough direction of an RREQ (route request) packet is controlled, and route overhead is reduced to the greatest extent while protection on a node with low energy is fully considered. By adopting the method disclosed by the invention, total network energy consumption is effectively reduced, network load is reasonably shared, number of dead nodes is reduced, and life cycle of a network is prolonged.

Description

technical field [0001] The invention relates to a wireless sensor network routing algorithm, in particular to an energy-efficient wireless sensor network routing algorithm. Background technique [0002] Wireless sensor networks need to meet the high efficiency of energy utilization. The battery energy of sensor nodes is limited. The routing mechanism should not only consider the selection of transmission paths with low energy consumption, but also choose the route that makes the energy consumption of the entire network balanced, so as to extend the wireless sensor network. purpose of life. In addition, it must meet the requirements of rapid convergence, dynamic changes in sensor network topology, limited energy resources and communication bandwidth of nodes, and routing protocols must meet the requirements of rapid convergence in order to adapt to changes in network topology, reduce communication overhead, and improve message transmission efficiency. . [0003] There are m...

Claims

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Application Information

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IPC IPC(8): H04W40/10H04W40/24
CPCY02B60/42Y02B60/50Y02D30/00Y02D30/70
Inventor 吴锡生刘兆孟赵雅群顾晓峰赵琳娜
Owner JIANGNAN UNIV
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