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Method for dynamic control of data packet length in wireless sensor network

A wireless sensor network, dynamic control technology, applied in network topology, wireless communication, transmission system and other directions, can solve the problems of consuming wireless communication energy of nodes, failing to achieve link evaluation, no dynamic control of packet length, etc., to reduce energy Consumption, reducing the number of responses, reducing the effect of energy consumption

Active Publication Date: 2010-07-28
ZHEJIANG UNIV
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  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] At present, the methods of controlling the length of data packets in wireless sensor networks obtain the optimal packet length according to the evaluation of the link quality, and use this packet length to send data packets. To achieve accurate link evaluation, there is a defect that consumes a lot of energy for node wireless communication

Method used

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  • Method for dynamic control of data packet length in wireless sensor network
  • Method for dynamic control of data packet length in wireless sensor network
  • Method for dynamic control of data packet length in wireless sensor network

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Embodiment Construction

[0029] Such as figure 1 As shown, the specific implementation of the wireless communication between nodes using the dynamic control packet length module is as follows:

[0030] 1) The request module of the source node requests the dynamic control data packet length module of the source node to send the data packet to the target node. This request includes other necessary information such as the requested data and the target node ID.

[0031] 2) After the dynamic control packet length module of the source node receives the request, the link evaluation module in the dynamic control packet length module evaluates the link quality from the source node to the target node to obtain an optimal packet length. The link quality here is affected by many factors: obstruction by obstacles, different attenuation of wireless signals due to different communication distances, other man-made or natural factors, etc. In particular, the existing technology is based on directly reading the evalu...

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Abstract

The invention discloses a method for dynamic control of data packet length in a wireless sensor network, which comprises the following steps that: a request module of a source node transmits a request to a module for dynamic control of data packet length for transmission of a data packet to a target node; a link estimation module of the source node for dynamic control of data packet length estimates the link quality to obtain the optimal data packet length; if the length of the data packet transmitted on request is smaller than the optimal data packet length, the data packet is processed through polymerization and then identity addition or direct through identity addition and is then transmitted to the transmitting module of the source node, otherwise, the data packet is processes throughsegmentation and then identity addition and is then transmitted to the transmitting module of the source node; the data packet is sequentially transmitted to the receiving module and the module for dynamic control of data packet length of the target node, reduced through segmentation or polymerization, and then transmitted to the receiving module of the target node; and the aggregation response module of the target node transmits a response data packet to the source node.

Description

technical field [0001] The invention relates to the data packet length control technology, especially the technology of controlling the data packet length in the wireless sensor network. Background technique [0002] In recent years, with the progress of information technology, a kind of information acquisition technology - wireless sensor network technology, has been developed rapidly. Since the end of the last century, fieldbus technology has been applied to sensor networks. People use it to build intelligent sensor networks. Sensor Networks. [0003] Wireless sensor network is a new generation of sensor network, which has a wide application prospect. It not only has huge application space in traditional fields such as industry, agriculture, military, environment, and medical treatment, but also shows extraordinary application value in emerging fields such as household, health care, and transportation. [0004] Wireless sensor networks have their own characteristics: li...

Claims

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Application Information

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IPC IPC(8): H04L1/16H04L1/00H04L1/18H04W52/02H04W84/18
CPCY02D30/70
Inventor 陈纯卜佳俊董玮高艺吴晓凡何道敬郭庆郑扣根
Owner ZHEJIANG UNIV
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