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Energy saving method and dormancy decision making system for wireless sensor network

A wireless sensor and network technology, applied in network topology, wireless communication, energy-saving ICT, etc., can solve the problems of large deviation and unfavorable actual network, large energy consumption of wireless sensor network, etc., and achieve the effect of prolonging the life span and reducing energy consumption

Inactive Publication Date: 2012-05-02
UNIV OF ELECTRONICS SCI & TECH OF CHINA
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Problems solved by technology

[0005] Existing research has achieved some results, but there are still the following problems: the theory of one-dimensional cellular automata is mature, the model is simple, but it deviates greatly from the actual network, and due to the limitation of dimensions, it is not conducive to the study of large-scale network characteristics
Judging from the existing research situation, the existing energy-saving technology of wireless sensor network lacks the module of node independent decision-making sleep state and working state, so it cannot fundamentally solve the problem of large energy consumption of wireless sensor network

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  • Energy saving method and dormancy decision making system for wireless sensor network
  • Energy saving method and dormancy decision making system for wireless sensor network
  • Energy saving method and dormancy decision making system for wireless sensor network

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specific Embodiment approach

[0035] The specific implementation method comprises the following steps:

[0036]Establish a cellular automaton, the cellular automata is specifically: A=(S, k, N, F), wherein, S represents all possible states of the node, k represents the total number of states of the node, and N is the set of node neighbors , F is the state transition rule, each node in the wireless sensor network has an independent decision-making cellular automaton, the cellular automaton updates its neighbor set according to the neighbor information and makes a decision according to the state transition rules, and judges whether it needs For state transition, all possible states of the node are specifically: dormant state and working state, that is, S={a, b}, where a represents the dormant state and b represents the working state; in this embodiment, a=0 , b=1, the total number of states is 2, that is, k=2. The topology of this embodiment is a lattice topology, such as figure 2 As shown, it can be seen...

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Abstract

The invention discloses an energy saving method and a dormancy decision making system for a wireless sensor network. In the method, a cellular automata (CA) state switching rule is designed, and a dormancy threshold value is set to adjust the dormancy intensity according to different network topology situations, so that a node can be switched between a dormancy state and a working state according to the CA state switching rule; and when excessive neighboring nodes are in the working state, the current node enters the dormancy state, thus the energy consumption is reduced. In the dormancy decision making system, a CA layer is designed between a medium access control (MAC) layer and an Internet protocol (IP) layer by rationally using a CA processing mechanism. According to the invention, on the basis of guaranteeing the reliability of network transmission, the energy consumption of the node is reduced and the life cycle of the network is prolonged.

Description

technical field [0001] The invention belongs to the technical field of wireless communication, and in particular relates to an energy-saving technology in a wireless sensor network. Background technique [0002] Wireless sensor network (Wireless Sensor Network, WSN) is a new type of wireless network without infrastructure that involves multiple disciplines and has broad application prospects. It is a new research hotspot in communication and computer science. [0003] The environment of the wireless sensor network is complex, and the power supply of the nodes is very limited. Therefore, how to reduce the energy consumption of the nodes and prolong the network lifetime has always been one of the hot spots of research at home and abroad. The IEEE 802.15.4 / Zigbee network standard has the characteristics of less energy consumption and low transmission rate, so it is widely used in wireless sensor networks. With the development of technology, the energy-saving requirements for Z...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04W52/02H04W84/18
CPCY02B60/50Y02D30/70
Inventor 于秦李唯乔
Owner UNIV OF ELECTRONICS SCI & TECH OF CHINA
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