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Wireless sensor network media access control method based on multipacket reception and communication system

A medium access control and wireless sensor network technology, applied in the field of communication, can solve problems such as unfavorable network throughput, increase control information overhead, etc., and achieve the effects of reducing control information overhead, improving throughput performance, and saving information interaction

Inactive Publication Date: 2014-12-17
CHINA TELECOM CORP LTD
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Problems solved by technology

However, in the process of realizing the present invention, the inventors found that since the method is based on the mechanism method of triggering multi-packet reception by the sending node, the acquisition of the above two information in this method is through periodic initialization of network nodes or periodic node It can be obtained through inter-information detection, which invisibly increases the control information overhead in the network, which is not conducive to the improvement of network throughput.

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  • Wireless sensor network media access control method based on multipacket reception and communication system
  • Wireless sensor network media access control method based on multipacket reception and communication system
  • Wireless sensor network media access control method based on multipacket reception and communication system

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Embodiment Construction

[0048] Various exemplary embodiments of the present invention will now be described in detail with reference to the accompanying drawings. It should be noted that the relative arrangements of components and steps, numerical expressions and numerical values ​​set forth in these embodiments do not limit the scope of the present invention unless specifically stated otherwise.

[0049] At the same time, it should be understood that, for the convenience of description, the sizes of the various parts shown in the drawings are not drawn according to the actual proportional relationship.

[0050] The following description of at least one exemplary embodiment is merely illustrative in nature and in no way taken as limiting the invention, its application or uses.

[0051] Techniques, methods and devices known to those of ordinary skill in the relevant art may not be discussed in detail, but where appropriate, such techniques, methods and devices should be considered part of the descript...

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Abstract

The embodiment of the invention discloses a wireless sensor network media access control method based on multipacket reception and a communication system. The method comprises the following steps: a first node in an idle state sensing a carrier of a channel, and if the channel in the sensing range of the first node is idle, sending RTR broadcast information; when a second node has a data packet to be sent to the first node, returning RTS response information to the first node after standing back one time; the first node selecting M target nodes from the second node to send ATS broadcast information according to the current state of the channel; M target nodes sending the data packets to the first node; the first node separating and identifying the data packets separately sent by the M target nodes through a multipacket separation algorithm and returning ACK broadcast information to the corresponding target nodes sending the data packets after the data packets are correctly identified. According to the embodiment of the invention, the control information expenditure in a network can be reduced, and the network throughout is increased.

Description

technical field [0001] The invention relates to communication technology, in particular to a wireless sensor network media access control method and communication system based on multi-packet reception. Background technique [0002] Wireless sensor network (WSN: Wireless sensor network) is composed of a large number of miniature sensor nodes deployed in the monitoring area, a multi-hop self-organizing network formed by wireless communication, and is an important part of the realization of the Internet of Things. Due to the multi-hop self-organizing characteristics of wireless sensor networks and the problems of hidden terminals and exposed terminals, traditional wireless or mobile cellular network communication protocols based on fixed or central control cannot meet its requirements. The communication protocol of the network, among which the protocols in the media access layer (Media access control, MAC) such as IEEE802.11DCF MAC, multiple access with collision avoidance (MA...

Claims

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Application Information

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IPC IPC(8): H04W48/16H04W84/18
Inventor 张继东甄宗波
Owner CHINA TELECOM CORP LTD
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