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Bit error-based low-speed wireless personal area network error data packet recovery method

A recovery method, data packet technology, applied in wireless communication, error prevention, digital transmission system, etc.

Pending Publication Date: 2020-08-28
上海交通大学烟台信息技术研究院 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0007] In view of the above-mentioned defects of the prior art, the technical problem to be solved by the present invention is to improve the success rate of packet acceptance without retransmission, thereby avoiding the extra energy consumption caused by retransmission; Under the premise, improve the success rate of packet transmission and ensure network throughput; while increasing the success rate of packet transmission, reduce additional computing overhead; use the bit error characteristics of the physical layer to restore the original erroneous data packets to improve the transmission success rate ; Reduce the resource overhead when recovering error packets, and reduce the resulting network delay

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  • Bit error-based low-speed wireless personal area network error data packet recovery method
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  • Bit error-based low-speed wireless personal area network error data packet recovery method

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Embodiment Construction

[0039] The following describes several preferred embodiments of the present invention with reference to the accompanying drawings, so as to make the technical content clearer and easier to understand. The present invention can be embodied in many different forms of embodiments, and the protection scope of the present invention is not limited to the embodiments mentioned herein.

[0040]In the drawings, components with the same structure are denoted by the same numerals, and components with similar structures or functions are denoted by similar numerals. The size and thickness of each component shown in the drawings are shown arbitrarily, and the present invention does not limit the size and thickness of each component. In order to make the illustration clearer, the thickness of parts is appropriately exaggerated in some places in the drawings.

[0041] The physical layer of the low-speed wireless personal area network IEEE802.15.4 protocol uses Direct Sequence Spread Spectrum...

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Abstract

The invention discloses a bit error-based low-speed wireless personal area network error data packet recovery method, and relates to the field of wireless communication. In a low-speed wireless personal area network IEEE 802.15. 4 signal receiving device, bit offset and bit mutation may occur to a received signal, so that a data packet goes wrong; by utilizing the rules, an algorithm for recovering the error data packet is designed at a receiving end, and the received error data is restored to correct data through shifting operation, recording and using similar bit error rules, and is enabledto pass CRC. According to the invention, an error data packet does not need to be sent again, the energy consumption of the transceiving equipment is reduced, extra communication time delay is not generated, and the data packet receiving success rate of IEEE 802.15. 4 equipment is greatly improved.

Description

technical field [0001] The invention relates to the field of wireless communication, in particular to a bit error-based low-speed wireless personal area network error data packet recovery method. Background technique [0002] Wireless Sensor Networks (WSN) are widely used in environmental monitoring, smart home, healthcare and other fields due to their low energy consumption, low cost and wireless transmission. However, compared to wired networks, wireless connections are more susceptible to fading, multipath effects, and interference, resulting in higher packet loss rates. How to improve transmission reliability and real-time performance while reducing energy consumption is crucial to improving the performance of wireless sensor networks. [0003] Currently, the most commonly used methods for improving the success rate of data packet reception include retransmission and forward error correction. In the retransmission method, when the sender does not receive the ACK, it re...

Claims

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Application Information

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IPC IPC(8): H04W28/04H04L1/00
CPCH04W28/04H04L1/0045H04L1/0052H04L1/0061Y02D30/70
Inventor 古炯宏陈彩莲许齐敏
Owner 上海交通大学烟台信息技术研究院
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