Development of Portable Atmospheric Environment Measurement System using Low Power Wireless Communication

2020 ◽  
Vol 10 (1) ◽  
pp. 99-109 ◽  
Author(s):  
Soohyeon Chae ◽  
Hack-Yoon Kim ◽  
Jangwon Gim
Keyword(s):  
Wireless Communication ◽  
Low Power ◽  
Measurement System ◽  
Atmospheric Environment ◽  
Environment Measurement

Design and Implementation of an Efficient Parallel LFSR Architecture for Wireless Communication Systems

2019 ◽  
Vol 14 ◽  
Author(s):  
A. Suresh Babu ◽  
B. Anand
Keyword(s):  
Wireless Communication ◽  
Power Consumption ◽  
Low Power ◽  
Communication Systems ◽  
High Speed ◽  
Design Tool ◽  
Shift Register ◽  
Linear Feedback ◽  
Wireless Communication Systems ◽  
Coverage Area

: A Linear Feedback Shift Register (LFSR) considers a linear function typically an XOR operation of the previous state as an input to the current state. This paper describes in detail the recent Wireless Communication Systems (WCS) and techniques related to LFSR. Cryptographic methods and reconfigurable computing are two different applications used in the proposed shift register with improved speed and decreased power consumption. Comparing with the existing individual applications, the proposed shift register obtained >15 to <=45% of decreased power consumption with 30% of reduced coverage area. Hence this proposed low power high speed LFSR design suits for various low power high speed applications, for example wireless communication. The entire design architecture is simulated and verified in VHDL language. To synthesis a standard cell library of 0.7um CMOS is used. A custom design tool has been developed for measuring the power. From the results, it is obtained that the cryptographic efficiency is improved regarding time and complexity comparing with the existing algorithms. Hence, the proposed LFSR architecture can be used for any wireless applications due to parallel processing, multiple access and cryptographic methods.

scholarly journals Characterizing the Impact of Doppler Effects on Body-Centric LoRa Links with SDR

Sensors ◽  
2021 ◽  
Vol 21 (12) ◽  
pp. 4049
Author(s):  
Thomas Ameloot ◽  
Marc Moeneclaey ◽  
Patrick Van Van Torre ◽  
Hendrik Rogier
Keyword(s):  
Wireless Communication ◽  
Low Power ◽  
Multipath Fading ◽  
Doppler Spread ◽  
Excellent Performance ◽  
Wireless Applications ◽  
Doppler Shifts ◽  
Doppler Effects ◽  
The Impact ◽  
Measurement Campaigns

Long-range, low-power wireless technologies such as LoRa have been shown to exhibit excellent performance when applied in body-centric wireless applications. However, the robustness of LoRa technology to Doppler spread has recently been called into question by a number of researchers. This paper evaluates the impact of static and dynamic Doppler shifts on a simulated LoRa symbol detector and two types of simulated LoRa receivers. The results are interpreted specifically for body-centric applications and confirm that, in most application environments, pure Doppler effects are unlikely to severely disrupt wireless communication, confirming previous research, which stated that the link deteriorations observed in a number of practical LoRa measurement campaigns would mainly be caused by multipath fading effects. Yet, dynamic Doppler shifts, which occur as a result of the relative acceleration between communicating nodes, are also shown to contribute to link degradation. This is especially so for higher LoRa spreading factors and larger packet sizes.

A low-power posture measurement system for the treatment of scoliosis

2000 ◽  
Vol 49 (1) ◽  
pp. 108-113 ◽  
Author(s):  
E. Lou ◽  
N.G. Durdle ◽  
V.J. Raso ◽  
D.L. Hill
Keyword(s):  
Low Power ◽  
Measurement System ◽  
Posture Measurement

A Low-Power Low-Cost 780MHz CMOS FSK Receiver for Short-Range Wireless Communication

2016 ◽  
Vol 25 (2) ◽  
pp. 220-226 ◽  
Author(s):  
Yadong Yin ◽  
Lihong Zhang ◽  
Yuanting Yang
Keyword(s):  
Wireless Communication ◽  
Low Power ◽  
Short Range ◽  
Low Cost

scholarly journals Tehrahertz CMOS Design for Low-Power and High-Speed Wireless Communication

2015 ◽  
Vol E98.C (12) ◽  
pp. 1091-1104 ◽  
Author(s):  
Minoru FUJISHIMA ◽  
Shuhei AMAKAWA ◽  
Kyoya TAKANO ◽  
Kosuke KATAYAMA ◽  
Takeshi YOSHIDA
Keyword(s):  
Wireless Communication ◽  
Low Power ◽  
High Speed ◽  
Cmos Design

The Hardware Design of Measurement System of Transmission Lines Based on Wireless Communication

2015 ◽  
Vol 1092-1093 ◽  
pp. 366-369
Author(s):  
Shu Min Sun ◽  
Wen Juan Jiang ◽  
Yu Meng ◽  
Yan Cheng
Keyword(s):  
Wireless Communication ◽  
Data Storage ◽  
Measurement System ◽  
Transmission Lines ◽  
High Speed ◽  
Time Synchronization ◽  
Clock Synchronization ◽  
Report Generation ◽  
Test Efficiency ◽  
Synchronization Module

A set of measurement system for the testing of transmission lines, composing of wireless center station, wireless current acquisition and transmission nodes, wireless voltage acquisition and transmission node, was designed, which was based on wireless communication. The high speed wireless bridge working at 2.4GHz together with the clock synchronization module based on the IEEE1588 communicating protocol were both employed for the communication and time synchronization separately. The measurement system has data storage, waveform display, data analysis, automatic report generation and other functions. The measurement system can greatly reduced arrangement of cables, thereafter improved the test efficiency.

Low-power multi-standard Viterbi decoder for wireless communication applications

2015 ◽  
Vol 4 (2) ◽  
pp. 228-238 ◽  
Author(s):  
Chu Yu ◽  
Bor-Shing Lin ◽  
Po-Hsun Cheng ◽  
Yu-Shan Su
Keyword(s):  
Wireless Communication ◽  
Low Power ◽  
Viterbi Decoder
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