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Efficient and energy-efficient sensor network data transmission method

A data transmission method and sensor network technology, which is applied in the field of sensor networks, can solve the problems of limited sensor network energy and large energy consumption in data transmission, and achieve the effects of reducing data transmission volume, eliminating clock incomplete synchronization, and improving efficiency

Active Publication Date: 2015-06-24
QINGDAO UNIV OF SCI & TECH
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Problems solved by technology

[0006] The purpose of the present invention is to solve the problem that the sensor network energy is limited and data transmission consumes a lot of energy, and provides a sensor network data transmission method EET (Energy Efficient Transmission) based on data segmentation, timing and multi-frequency transmission, which can reduce The data transmission volume of the sensor network reduces the energy consumption of the network, and has the characteristics of high efficiency and energy saving

Method used

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Embodiment Construction

[0023] The content of the present invention will be further elaborated below in conjunction with the accompanying drawings.

[0024] First, EET converts the binary string to be sent in the traditional data transmission mechanism into decimal data. For example, to transmit a binary number n containing k data k-1 ... n i ... n 1 ,n 0 (where i=1,2...k-1,n i =0,1), convert the binary number into a decimal integer N:

[0025] N=2 k-1 no k-1 +2 k-2 no k-2 +...+2n 1 +n 0

[0026] Then, divide the decimal number N bit by bit, divide it into multiple small data with single digits, and set the time interval of the unit time of timing. When sending, use the timing duration to represent the small data to be sent, that is, within the length The number of unit time intervals included is equal to the number of small data to be sent. That is to say, the duration representing the number "0" contains 0 unit time intervals, the duration representing the number "1" contains 1 unit ti...

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Abstract

The invention relates to the technical field of sensor networks, in particular to an efficient and energy-efficient sensor network data transmission method EET (Energy Efficient Transmission). The EET is an efficient and energy-efficient sensor network data transmission method, a data segmentation mode is adopted, waiting time is decomposed for reducing transmission delay, and the effect that a clock is not synchronous completely is eliminated; the one-by-one transmission of original data is replaced by timekeeping, the transmission quantity of the data is reduced, and the network energy consumption is reduced; the multi-frequency characteristic of sensor nodes is utilized, different data can be transmitted simultaneously by multiple working frequency bands, and the data transmission efficiency is improved. The EET has the advantages being low in energy consumption, little in delay, low in cost, convenient to implement and great in practicability in the sensor network with limited energy.

Description

technical field [0001] The invention relates to the technical field of sensor networks, in particular to an efficient and energy-saving sensor network data transmission method. Background technique [0002] The sensor nodes in the sensor network are generally powered by batteries. Due to the harsh and complex working environment, it is difficult to replace the battery after it is exhausted, and the energy is very limited. Energy efficiency is one of the important criteria to measure the performance of the sensor network data transmission protocol. Existing data transmission protocols use various algorithms to save the energy of sensor nodes, make the network work as long as possible under limited energy conditions, and prolong the life of the network. The sensor network mainly consumes energy in the three aspects of perception, processing and communication, and communication consumes the largest proportion of energy. Therefore, reducing communication traffic is the most eff...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04W28/06H04W52/02
CPCH04W28/06H04W52/0203Y02D30/70
Inventor 郭瑛
Owner QINGDAO UNIV OF SCI & TECH
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