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Medium access control method of wireless sensor network

A medium access control, wireless sensor technology, applied in the communication field of wireless sensor network, can solve problems such as conflicts and can not effectively solve data packets

Inactive Publication Date: 2014-06-25
TAIYUAN UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The present invention provides a medium access control method for wireless sensor networks in order to solve the problem that existing conflict resolution mechanisms cannot effectively solve the problem of data packet conflicts in wireless sensor networks that use duty cycle technology to periodically switch sensor radios

Method used

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  • Medium access control method of wireless sensor network
  • Medium access control method of wireless sensor network
  • Medium access control method of wireless sensor network

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Embodiment Construction

[0021] A medium access control method for a wireless sensor network, comprising the following steps:

[0022] Initialization of protocol operation: every node in the wireless sensor network must run the protocol, so the protocol must be initialized first. The initialization mainly includes the classification of the code library, the encoding method of the control information, and the node list;

[0023] Application for sending information: When data needs to be sent, the sending node sends an application message containing the ID of the sending node and the ID of the receiving node to apply for the right to use the channel;

[0024] Detect application status: the receiving node identifies the sending node that sends the application information according to the application information, and determines the number of sending nodes;

[0025] Authorize the sending node to send information: When multiple sending nodes apply to send data, the receiving node sorts the IDs of the sendin...

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Abstract

The invention relates to a communication method of a wireless sensor network, in particular to a medium access control method of a wireless sensor network. The medium access control method includes the following steps of initializing protocol operation, requesting to send information, detecting application situations, authorizing sending nodes to send information, sending data and releasing a channel, wherein when the sending nodes send the data to one receiving node, the receiving node sequences IDs of the sending nodes from small to large according to the amplitude of the IDs of the sending nodes, the sending modes send the data to the receiving node one by one according to the sequence, and the problem that when multiple sending nodes send the data to one receiving node, the sending nodes contend for the same channel, data conflicts are caused is solved. The method for solving the data conflicts is novel; according to the method, a related sequence replaces control information of medium access control in the wireless sensor network to solve the data conflict problem, the throughout capacity of the network can be effectively improved, and energy consumption is reduced.

Description

technical field [0001] The invention relates to a communication method of a wireless sensor network, in particular to a medium access control method of a wireless sensor network. Background technique [0002] With the continuous development of communication technology, sensor technology, embedded operation technology and microelectronics technology, large-scale wireless ad hoc networks develop rapidly and are widely used in many fields such as environmental monitoring, fire and disaster relief, intelligent transportation, and urban management. A typical wireless ad hoc network is a wireless sensor network. A wireless sensor network is composed of a large number of tiny sensor nodes. Sensor nodes are generally deployed in harsh environments and transmit data to processing center. Wireless sensor networks enable people to obtain a large amount of detailed and reliable information in real time at any time, place and environmental conditions. [0003] At present, there have be...

Claims

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Application Information

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IPC IPC(8): H04W52/02H04W84/18
CPCY02D30/70
Inventor 赵菊敏范少蕾赵宝峰
Owner TAIYUAN UNIV OF TECH
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