Application of time-aware retransmission against reflection signal interferences in Internet of things

Han LUO; Yuhong LIU; Hongguang ZHANG; Chong ZHANG; Yuan’an LIU

doi:10.11959/j.issn.2096-3750.2019.00129

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Application of time-aware retransmission against reflection signal interferences in Internet of things

Theory and Technology | 更新时间：2024-06-05

- Application of time-aware retransmission against reflection signal interferences in Internet of things
- Chinese Journal on Internet of Things Vol. 3, Issue 4, Pages: 25-33(2019)
- 作者机构：
  
  1. 北京邮电大学电子工程学院，北京 100876
  2. 北京市安全生产智能监测重点实验室，北京 100876
- 作者简介：
- 基金信息：
- DOI：10.11959/j.issn.2096-3750.2019.00129
  CLC： TN92
- Published：30 December 2019，
  
  Published Online：2019-09，
- 稿件说明：
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HAN LUO, YUHONG LIU, HONGGUANG ZHANG, et al. Application of time-aware retransmission against reflection signal interferences in Internet of things. [J]. Chinese journal on internet of things, 2019, 3(4): 25-33.
DOI：

HAN LUO, YUHONG LIU, HONGGUANG ZHANG, et al. Application of time-aware retransmission against reflection signal interferences in Internet of things. [J]. Chinese journal on internet of things, 2019, 3(4): 25-33. DOI： 10.11959/j.issn.2096-3750.2019.00129.

摘要

在封闭空间中，无线传输会产生较强的反射干扰，如何降低反射干扰对无线通信的影响是拓展物联网在封闭空间中应用的关键问题之一。提出了时间感知重传机制，该机制能够调整每帧的时间时延，并利用空间导体表面的反射损耗来减少反射信号造成的干扰。为了证明该机制的适应性，使用了能够产生强反射干扰信号的实验环境，实验结果证明了这种重传机制的可行性及其在不同环境下的有效性。在某种意义上，时间感知重传机制扩展了无线通信在强反射空间的应用，此外，在机内、船内和星内的物联网应用中，该机制可以实现无线传输代替部分有线传输，从而达到提高系统可靠性、有效减重等重要目标。

Abstract

In the enclosed spaces

wireless transmissions lead to the strong interferences of reflection signals

because of multipath effects.However

how to reduce the reflection signal effect on wireless transmissions is a kernel problem to expand the application scope of Internet of things.The time-aware retransmission MAC (TR-MAC) was proposed

which can adjust the time delay of each frame and reduce the interference caused by the reflected signal by using the reflection loss of the space conductor surface.In order to prove the adaptability of TR-MAC

an experimental environment that can generate strong reflection interference signals was used.The experimental results proved the feasibility and effectiveness of the TR-MAC in different environments.In a sense

TR-MAC extends the application of wireless communication in strongly reflective space.Besides

in the application of the Internet of things in the aircraft

ship and satellite

TR-MAC can realize wireless transmission instead of part of the wired transmission

so as to improve the system reliability

effective weight reduction and other important goals.

关键词

时间感知重传反射信号干扰反射损耗封闭空间通信

Keywords

time-aware retransmissionreflection signal interferencesreflection losswireless intra communications

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