6LoWPAN-based energy-saving data transmitting method for wireless sensor network

A wireless sensor and network technology, applied in wireless communication, energy-saving ICT, energy reduction, etc., can solve problems such as high energy consumption

Active Publication Date: 2012-10-03
ZHEJIANG UNIV OF TECH
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Problems solved by technology

[0013] In order to overcome the disadvantage of excessive energy consumption caused by the excessive number of link hops between the source and the destination of the MUR routing strategy of the existing 6LoWPAN-based wireless sensor network, the present inventi...

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  • 6LoWPAN-based energy-saving data transmitting method for wireless sensor network
  • 6LoWPAN-based energy-saving data transmitting method for wireless sensor network
  • 6LoWPAN-based energy-saving data transmitting method for wireless sensor network

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Embodiment Construction

[0099] The present invention will be further described below in conjunction with the accompanying drawings.

[0100] refer to figure 2 and image 3 , a wireless sensor network energy-saving data transmission method based on 6LoWPAN, the wireless sensor network energy-saving data transmission method includes the following process:

[0101] First, find an optimal temporary assembly node TAN between the source and the sink through the "TAN search method". The method of selecting the temporary assembly node TAN is as follows:

[0102] Step 1: Start with i ,A j > indicates the connection node A i and node A j of links to 0 ,A 1 ,...,A n > means A 0 is the source node, A n is the sink node and passes through node A 1 , A 2 ,A 3 ,... and A n-1 The data packet transmission path, a total of n hops.

[0103] Step 2: Calculate E according to formula (19) avg (n), and take Min_E=E avg (n), and record Best_Pair={n}.

[0104] E avg ...

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Abstract

The invention provides a 6LoWPAN (6Low-power Wireless Personal Area Network)-based energy-saving data transmission method for a wireless sensor network. An optimal TAN (Temporary Assembling Node) needs to be found between an information source and an information sink; firstly, the information source divides an IPv6 (Internet Protocol Version 6) into fragmentations, then transmits the fragmentations to the TAN one by one through a method of MUR, namely Mesh-under Routing, of the 6LoWPAN protocol; and the TAN assembles together the received fragmentations to the original IPv6 data packet, then fragments the IPv6 data packet, and transmits the fragmentations to the information sink node one by one through the MUR. Therefore the total energy consumption of the node transmitting data packet is reduced. The method of finding the TAN is the key of the invention, and the core of the invention is formula (19). By adopting the method provided by the invention, the energy consumption of the node transmitting data packet, the retransmission times of the data packet and the communication delay-time in the wireless sensor network are all reduced.

Description

technical field [0001] The invention relates to an energy-saving data transmission method, which is suitable for a wireless sensor network based on 6LoWPAN. technical background [0002] Wireless sensor networks usually use IEEE 802.15.4 as a communication standard, which is widely used in environmental observation, smart home, medical care, traffic monitoring and other fields. In the IEEE 802.15.4 standard, network equipment has the characteristics of low power consumption, low data transmission rate, short communication distance, and short data packet length. For example, the standard stipulates that the MTU of the link layer, that is, the Maximum Transmission Unit, has a size of 127 bytes; the maximum data transmission rate of wireless devices operating in the 2.4GHz frequency band is 250kbps; in addition to the 64-bit globally unique extended address, it also supports 16 bit short address format. [0003] IPv6 is a next-generation IP protocol designed by IETF, the Inte...

Claims

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Application Information

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IPC IPC(8): H04W40/02H04W52/02
CPCY02B60/50Y02D30/70
Inventor 朱艺华池凯凯戴光麟朱益军陈淦
Owner ZHEJIANG UNIV OF TECH
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