Routing method of small-scale wireless sensor network

A wireless sensor, small-scale technology, applied in wireless communication, transmission system, advanced technology, etc., can solve the problem that the harmony search algorithm cannot be directly used to solve wireless sensor network routing and other problems

Active Publication Date: 2015-04-01
HUAZHONG UNIV OF SCI & TECH
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Problems solved by technology

[0036] The invention provides a routing method for a small-scale wireless sensor network, which solves the problem that the traditional harmony search algorithm cannot be directly used to solve the routing problem of the wireless sensor network, and improves the encoding method and candidate harmony generation method of the existing harmony search algorithm , considering both path energy consumption and path length to improve energy efficiency and extend the lifetime of the entire small-scale wireless sensor network

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  • Routing method of small-scale wireless sensor network
  • Routing method of small-scale wireless sensor network
  • Routing method of small-scale wireless sensor network

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Embodiment Construction

[0120] The present invention will be described in further detail below in conjunction with the accompanying drawings and embodiments.

[0121] Such as image 3 As shown, the embodiment of the present invention includes a step of transmitting global information, a step of sending data packets, a step of transmitting data packets and a step of updating residual energy information:

[0122] (1) Transfer global information steps:

[0123] First, number the sensor nodes including the sink node in the network as their unique identifiers; set the sink node to the same transmission power as each sensor node, and the sink node broadcasts routing messages to neighbor nodes in the network, It includes the number of hops from each sensor node to the sink node; after each neighbor node receives the routing message, it adds 1 to the hop count from itself to the sink node, and then broadcasts the updated routing message to its own neighbor nodes; thus, each The sensor nodes can know the nu...

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Abstract

The invention provides a routing method of a small-scale wireless sensor network, belongs to the field of routing of a wireless sensor network, and solves the problem that a Harmony search algorithm in the prior art cannot be directly used for solving the routing of the wireless sensor network. The routing method comprises a step of transmitting global information, a step of sending data packet, a step of transmitting the data packet and a step of updating rest energy information. Through improving the encoding manner and the candidate Harmony generation method of the existing Harmony search algorithm, with the consideration of both path energy consumption and path length, the energy consumption of the whole network can be balanced effectively, and the service life of the whole network is prolonged significantly.

Description

technical field [0001] The invention belongs to the field of wireless sensor network routing, and in particular relates to a routing method for a small-scale wireless sensor network. Background technique [0002] The rapid development of computer system, sensor technology, wireless communication technology and distributed information processing and other technologies has promoted the rapid development of wireless sensor network technology that connects human beings and the real physical world. The wireless sensor network can connect the physical information of the objective world with the existing network, so it can realize a variety of functions that other networks cannot achieve. It is one of the key technologies in the next generation network and the most important emerging technology in the 21st century. It is one of the technologies that has been widely used in the military field as well as in the economic and life fields to realize the interconnection between the physi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04W40/02H04W40/10H04W40/24
CPCH04L45/124H04W40/08H04W40/10H04W40/248Y02D30/70
Inventor 董燕曾冰
Owner HUAZHONG UNIV OF SCI & TECH
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