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Data transmission method of multilayer distributed wireless sensor network

A network data transmission, wireless sensor technology, applied in the field of telecommunication, can solve the problem of reducing the reliability of data transmission

Active Publication Date: 2010-11-24
CHINA NORTH IND NO 205 RES INST
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

The route with the smallest number of hops is not necessarily the optimal route. If the route contains unreliable paths, the reliability of data transmission will be reduced.

Method used

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  • Data transmission method of multilayer distributed wireless sensor network
  • Data transmission method of multilayer distributed wireless sensor network
  • Data transmission method of multilayer distributed wireless sensor network

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Embodiment Construction

[0040] The present invention will be further described in detail below in conjunction with the accompanying drawings and preferred embodiments.

[0041] The wireless sensor network (WSN) that the present invention aims at is composed of n sensor nodes C i It is composed of a base station BS, namely i=1, 2, 3, . . . , n, and in this preferred embodiment, n=100. n sensor nodes C i Randomly and evenly distributed in the sensing area of ​​100m×100m, usually set each sensor node C i The communication radius r is 30m, but its wireless transmission power is controllable, and the transmission power can be adjusted according to the communication distance to reach the destination receiving node with the minimum energy, so that it can communicate directly with the base station BS. All sensor nodes maintain time synchronization, each sensor node C i After deployment, it will no longer move, and can calculate the approximate distance from the sender to itself according to the strength o...

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Abstract

The invention discloses a data transmission method of a multilayer distributed wireless sensor network, belonging to the technical field of telecommunication. The data transmission method is characterized by comprising the following steps of: selecting a route cluster head based on local information of a wireless sensor network, and clustering the wireless sensor network through comprehensively considering factors including residual energy of a sensor node, communication price and the like; building a cluster head single chain in a cluster head set by means of greedy algorithm, using the cluster head with the maximum energy weight value of a base station as a chain head node directly communicated with the base station in the cluster head single chain so as to enable each cluster head to transmit the data to the base station by means of multi-hop communication. In the invention, the data transmission method not only can effectively solve the technical problem of prolonging life cycle of the wireless sensor network, but also can improve the energy utilization ratio of the wireless sensor network, thereby the invention is suitable for a large-scale wireless sensor network and has wide application prospect.

Description

technical field [0001] The invention belongs to the technical field of electric communication and the field of wireless ad hoc network application, and mainly relates to a data transmission method of a wireless sensor network, in particular to a data transmission method of a multi-layer distributed wireless sensor network. Background technique [0002] Wireless sensor networks (WSN) is a network composed of a large number of sensor nodes with sensing, computing and wireless communication capabilities in a self-organizing manner. It can independently complete tasks such as monitoring, target discovery, identification and tracking according to the environment. Because WSN has the characteristics of random layout, self-organization and strong concealment, it has broad application prospects and high application value in military, industrial and commercial fields. [0003] In a wireless sensor network, there are one or more nodes acting as base stations. The sensor nodes in the n...

Claims

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Application Information

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IPC IPC(8): H04W40/10H04W84/18
CPCY02D30/70
Inventor 于振华刘宇胡正良王静郭城周立君周新妮
Owner CHINA NORTH IND NO 205 RES INST
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