Data packets of underwater sound sensor network and transmission method

An underwater acoustic sensor and data packet technology, applied in network flow/resource management, error prevention/detection using the return channel, electrical components, etc. Problems such as large communication delays

Inactive Publication Date: 2011-11-23
HARBIN ENG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0002] Due to the large delay, narrow bandwidth and high error rate of underwater acoustic communication, ordinary land wireless communication protocols cannot be directly applied to this field
High error rates cause packets to often need to be retransmitted

Method used

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  • Data packets of underwater sound sensor network and transmission method
  • Data packets of underwater sound sensor network and transmission method

Examples

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Embodiment Construction

[0013] The following examples describe the present invention in more detail:

[0014] The data packet of the underwater acoustic sensor network of the present invention: divide the large block of transmission data into several data blocks of equal length, and perform verification respectively. That is: each data packet is composed of a header part, a header verification part and a data part. The packet header part is the same as other similar protocols, including address information, data packet length, packet sequence number, etc. The packet header verification part only contains verification information about the packet header part. The data section consists of two parts. The front part is one or more data blocks of equal length belonging to this sending packet, and each data block is composed of the transmission data part and the check information of this part. The last chunk of data in the section may be smaller. The latter part of the data part contains 0 or more data...

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Abstract

The invention provides data packets of an underwater sound sensor network and a transmission method. Each data packet consists of a packet header part, a packet header verification part and a data part, wherein the packet header part comprises address information; the packet header verification part only comprises verification information related to the packet header part; the data part consists of one or more data blocks of equal length; and each data block consists of a transmitted data part and verification information of the transmitted data part respectively. The basic thought of the invention is to partition the conventional large transmitted data block into certain data blocks of equal length for respective verification, so that the data volume of retransmission in an environment, such as an underwater acoustic network in which a transmission error occurs easily, can be reduced.

Description

technical field [0001] The invention relates to a data packet format of a sensor network for wireless communication through sound under water. The invention also relates to a data transmission method of a sensor network for wireless communication through sound underwater. Background technique [0002] Due to the large delay, narrow bandwidth and high error rate of underwater acoustic communication, ordinary land wireless communication protocols cannot be directly applied to this field. High error rates cause packets to often need to be retransmitted. Contents of the invention [0003] The purpose of the present invention is to provide a data packet of an underwater acoustic sensor network that can reduce retransmitted data. The purpose of the present invention is also to provide a method for transmitting data packets of an underwater acoustic sensor network. [0004] The purpose of the present invention is achieved like this: [0005] The data packet of the underwater ...

Claims

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Application Information

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IPC IPC(8): H04L1/18H04L1/16H04W28/06
Inventor 姚念民马海峰
Owner HARBIN ENG UNIV
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