Modeling Wireless Signal Transmission Performance Path Loss for ZigBee Communication Protocol in Residential Houses

2009 ◽  
Author(s):  
Hui Li ◽  
Lingying Zhao ◽  
Matthew J Darr ◽  
Peter Ling
Keyword(s):  
Communication Protocol ◽  
Signal Transmission ◽  
Path Loss ◽  
Transmission Performance ◽  
Wireless Signal

Research on robust adaptive sliding film fault-tolerant control under nonlinear distortion of signal transmission in amorphous flat air-to-ground wireless ad-hoc network system

2022 ◽  
Vol ahead-of-print (ahead-of-print) ◽  
Author(s):  
Zhifang Wang ◽  
Jianguo Yu ◽  
Shangjing Lin
Keyword(s):  
Nonlinear Distortion ◽  
Ad Hoc ◽  
Fault Tolerant ◽  
Signal Transmission ◽  
Network System ◽  
Long Distance ◽  
Content Type ◽  
Wireless Signal ◽  
Robust Adaptive ◽  
Self Organizing

Purpose To solve the above problems and ensure the stability of the ad hoc network node topology in the process of wireless signal transmission, this paper aims to design a robust adaptive sliding film fault-tolerant controller under the nonlinear distortion of signal transmission in an amorphous flat air-to-ground wireless ad hoc network system. Design/methodology/approach This paper designs a robust adaptive sliding film fault-tolerant controller under the nonlinear distortion of signal transmission in an amorphous flat air-to-ground wireless ad hoc network system. Findings The simulation results show that the amorphous flat wireless self-organizing network system has good nonlinear distortion fault-tolerant correction ability under the feedback control of the designed controller, and the system has the asymptotically stable convergence ability; the test results show: the node topology of the self-organizing network structural stability is significantly improved, which provides a foundation for the subsequent realization of long-distance transmission of ad hoc network nodes. Research limitations/implications Because of the chosen research approach, the research results may lack generalizability. Therefore, researchers are encouraged to test the proposed propositions further. Originality/value The controller can extract the fault information caused by nonlinear distortion in the wireless signal transmission process, and at the same time, its feedback matrix K can gradually converge the generated wireless signal error to zero, to realize the stable transmission of the wireless signal.

Modeling and Optimization Design of Signal Interconnect Channel Considering Signal Integrity in Three Dimensional Integrated Circuits

2021 ◽  
Vol 16 (5) ◽  
pp. 773-780
Author(s):  
Bing-Jie Li ◽  
Zhen-Song Li ◽  
Yan-Ping Zhao ◽  
Zheng-Wang Li ◽  
Min Miao
Keyword(s):  
Performance Optimization ◽  
High Speed ◽  
Optimization Design ◽  
Channel Model ◽  
Transmission Loss ◽  
Coupling Effect ◽  
Signal Integrity ◽  
Signal Transmission ◽  
Equivalent Circuit Model ◽  
Transmission Performance

The signal integrity (SI) analysis of a high-speed signal interconnect channel composed of through silicon vias (TSVs) and horizontal re-distribution layers (RDL) is carried out, and the problems of SI, such as transmission loss, crosstalk and coupling effect in the transmission channel, are analyzed and studied. These signal integrity issues are considered in this paper, a signal interconnect channel model is proposed and the equivalent circuit model is deduced as well. Compared with the traditional one, this interconnect channel model has better performance in SI. Further sweep frequency analysis is carried out for different material parameters to achieve signal transmission performance optimization aimed at this model. Test samples of the proposed signal interconnect channel model are designed and fabricated according to the process index, and measured to verify the actual transmission performance. The design and optimization rule of high-speed signal interconnect channel are summarized which proved that the proposed structure has more advantages in signal transmission performance, and has important guiding significance for practical design.

Accelerometer Sensor Based Fall Sensing for Elderly

2015 ◽  
Vol 73 (1) ◽  
Author(s):  
Anas Mohd Noor ◽  
Hafizudin Zainudin ◽  
Normaheran Hanafi ◽  
Siti Aishah Baharuddin ◽  
Mohamad Aliff Abdul Rahim
Keyword(s):  
Mobile Communications ◽  
Signal Transmission ◽  
Cost Effective ◽  
Fall Detection ◽  
Detection Algorithm ◽  
Prototype System ◽  
Accelerometer Sensor ◽  
Wireless Signal ◽  
Overall Performance ◽  
Key Parameter

Fall can be recognized as an abnormal or action of losing an upright motion which will cause people especially elderly to suffer from pain and more seriously can affect one’s health. Being able to detect fall is key parameter to decrease the risk of severe injury to the seniors. There are such existing fall detection products on the market to assist elderly so that immediate response could be taken. However, due to complexity system, high cost and employing outside technology, these products initiate limitations such as maintenance and system enhancement. In this project, a fall detection device and system is developed using local technology, simple and cost effective. The prototype system consist of accelerometer sensing circuit, microcontroller with wireless signal transmission, Global System for Mobile Communications (GSM) notification alert for mobile phone and graphical user interface (GUI) to obtain real-time monitoring. The simple fall detection algorithm is developed to ensure false detection could be minimized. The overall performance of the developed device and system is proven reliable and practical. 

Investigation of the Effect of Moving Forklift on Data Transmission of IEEE 802.15.4 Wireless Sensor Radio

2012 ◽  
Vol 134 (4) ◽  
Author(s):  
Lei Tang ◽  
Fan Yang ◽  
Daxing Zhang ◽  
Kuang-Ching Wang ◽  
Yong Huang
Keyword(s):  
Data Transmission ◽  
Manufacturing Systems ◽  
Moving Objects ◽  
Ieee 802.15.4 ◽  
Path Loss ◽  
Sensor Data ◽  
Wireless Sensor ◽  
Packet Error Rate ◽  
Transmission Performance ◽  
Essential Components

Low-cost wireless sensors embedded in machines and plant floors are essential components for intelligent monitoring and automation in automated manufacturing systems. To enable robust and confident industrial adoption of wireless sensor systems, their data transmission performance must be guaranteed before deployment. Moving objects such as forklifts in common manufacturing settings are known to cause errors and losses in wireless sensor data transmission. As an essential step toward building wireless sensor-based manufacturing plant floor monitoring systems, this study has conducted systematic data transmission performance measurements with IEEE 802.15.4 sensors in the presence of a moving forklift. It is found that for a typical moving forklift, its path loss profile can be predicted based on its stationary path loss profile. Specifically, the path loss for a moving forklift can be adequately modeled using a two-state time-dependent model with both deterministic and random contributions. Such a two-state path loss model can be applied to adequately estimate the packet error rate in the presence of moving objects.

Coherent Terahertz Wireless Signal Transmission Using Advanced Optical Fiber Communication Technology

2014 ◽  
Vol 36 (2) ◽  
pp. 180-197 ◽  
Author(s):  
Atsushi Kanno ◽  
Toshiaki Kuri ◽  
Isao Morohashi ◽  
Iwao Hosako ◽  
Tetsuya Kawanishi ◽  
...  
Keyword(s):  
Optical Fiber ◽  
Communication Technology ◽  
Signal Transmission ◽  
Optical Fiber Communication ◽  
Fiber Communication ◽  
Wireless Signal
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