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WiFi-Based Technique Measures Speed and Distance of Indoor Movement

  • Magazine Article
  • TBMG-35610
Published 2019-12-01 by Tech Briefs Media Group in United States

A technique was developed that uses a combination of WiFi signals and accelerometer technology to track devices in near-real-time. The WiFi-assisted Inertial Odometry (WIO) technique uses WiFi as a velocity sensor to accurately track how far something has moved — similar to sonar but using radio waves instead of sound waves.

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Software-Defined Analog Filters: A Paradigm Shift in Radio Filter Performance and Capability

Aerospace & Defense Technology: December 2019

  • Magazine Article
  • 19AERP12_05
Published 2019-12-01 by SAE International in United States

Among the most abundant components in all wireless system designs, analog RF filters are used to block interference from various internal and external sources. Limited spectrum divided among an ever-increasing number of users is further driving the need for these ubiquitous but in some ways anachronistic devices. Currently, interference is quite common among cellular base stations, satellite systems, radar installations, and other types of access and backhaul communications systems. Traditional filters are unable to cope with the requirements; in many cases, most often due to insufficient guard bandf. For example, in some international locales, LTE base stations and satellite receivers share the L-band frequencies. At around 3.5 GHz, 5G operators, CBRS radios, and military radars are trying to co-exist. To address this in-band interference, a new, tunable filtering technology is entering the marketplace, uniquely blending the best of both analog and digital technologies.

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Connected Vehicles - An Ecosystem for Services

Automotive Software-Prabha Baragur Venkataram
  • Technical Paper
  • 2019-28-2447
Published 2019-11-21 by SAE International in United States
This paper outlines the different aspects of the Connected Vehicle concept. The blocks required to implement a Connected Vehicle infrastructure is also discussed in detail.Two main types of short-range wireless communication are discussed in Connected Vehicles context namely Vehicle-to-Vehicle (V2V), and Vehicle-to-Infrastructure (V2I) communication.An overview of the evolution of the Connected Vehicle and its operational aspects are presented together with its application. The impacts and potential operational benefits of the Connected Vehicle are discussed.The various challenges to architect non-functional requirements in the case of Connected Vehicle technology are identified and discussed.
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The 6 Most Important Parts of a Temperature Monitoring System

  • Magazine Article
  • TBMG-35462
Published 2019-11-01 by Tech Briefs Media Group in United States

In the past few years, it has become increasingly common for hospitals, clinics, healthcare and life science organizations, and other businesses to use an electronic temperature monitoring system to safeguard their products and satisfy regulatory demands. You may know that you need a monitoring system, possibly with alarming capabilities, but aren't sure how to select the best one to meet your needs. To complicate matters, there are literally dozens of different types of temperature monitoring systems with different features and a wide range of prices.

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Handling of Data from Heterogeneity of Vehicular Devices through Inter-Networking

VIT Universtity-Gnanaprakasam Anuradha, Kalivaradhan Ramesh Babu
Vellore Institute of Technology-Chooriyaparambil Damodaran Naiju
Published 2019-10-11 by SAE International in United States
Collection of various data from sensed data or raw availability of data from transcript or interdependency of data from various sources is a tedious task in a real time scenario like an Indian context is considered. Planning to find a solution to collect the data from various vehicular devices about the information related to the pollution becomes a cumbersome job. The need of the data, under what time duration data has to be transmitted, how they are interconnected and whether data needs to be stored or how they are processed is a major question that arise when dealing with collecting data and internetworking with various vehicular devices. A study of two different types of approaches for internetworking between the devices is discussed. One related to real time setup of mobile application and other with the dynamic cluster approach when the nodes are moving in a region was considered. Eliminating the speed of the vehicle with the movement of human formation of cluster with the mobile application to identify the various devices in the vicinity was…
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Wireless Transceiver Quadruples Speed of 5G

  • Magazine Article
  • TBMG-35268
Published 2019-10-01 by Tech Briefs Media Group in United States

A new wireless transceiver was developed that boosts radio frequencies into 100-gigahertz territory, which is quadruple the speed of the upcoming 5G, or fifth-generation, wireless communications standard. The end-to-end transmitter-receiver is a 4.4-millimeter-square silicon chip capable of processing digital signals significantly faster and more energy-efficiently because of its digital-analog architecture. Having transmitters and receivers that can handle high-frequency data communications is vital for Internet of Things devices, autonomous vehicles, and vastly expanded broadband for streaming of high-definition video content and more.

Terahertz Data Links Without Direct Line of Sight

  • Magazine Article
  • TBMG-35143
Published 2019-09-01 by Tech Briefs Media Group in United States

Today’s cellular networks and Wi-Fi systems rely on microwave radiation to carry data but the demand for more bandwidth is quickly becoming more than microwaves can handle. That has researchers thinking about transmitting data on higher-frequency terahertz waves, which have as much as 100 times the data-carrying capacity of microwaves. But terahertz communication technology is in its infancy — there is much basic research to be done and plenty of challenges to overcome.

How to Choose the Right Wireless Technology for Industrial Condition Monitoring

  • Magazine Article
  • TBMG-35194
Published 2019-09-01 by Tech Briefs Media Group in United States

Industries are constantly searching for new approaches to advance operational efficiency and product quality. With unplanned downtime estimated to cost manufacturers $50 billion each year, improving asset health and availability is a top priority.

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Dedicated Short Range Communications (DSRC) Performance Requirements for V2V Safety Awareness™ ASN File

V2X Vehicular Applications Technical Committee
  • Ground Vehicle Standard
  • J2945/2A_201907
  • Current
Published 2019-07-01 by SAE International in United States

This Abstract Syntax Notation (ASN.1) File is the precise source code used for SAE International Standard J2945/2. As part of an international treaty, all US ITS standards are expressed in "ASN.1 syntax". ASN.1 Syntax is used to define the messages or "ASN specifications". Using the ASN.1 specification, a compiler tool produces the ASN library which will then be used to produce encodings (The J2945/2 message set uses UPER encoding). The library is a set of many separate files that collectively implement the encoding and decoding of the standard. The library is then used by any application (along with the additional logic of that application) to manage the messages. The chosen ASN tool is used to produce a new copy of the library when changes are made, and it is then linked to the final application being developed. The ASN library manages many of the details associated with ASN syntax, allowing for subtle manipulation to make the best advantage of the encoding style.

Programming Light on a Chip

  • Magazine Article
  • TBMG-34606
Published 2019-06-01 by Tech Briefs Media Group in United States

Microwave signals are ubiquitous in wireless communications but interact too weakly with photons. A technique was developed to fabricate high-performance optical microstructures using lithium niobate, a material with powerful electro-optic properties. The new integrated photonics platform can store light and electrically control its frequency (or color) in an integrated circuit. The platform draws inspiration from atomic systems and could have a wide range of applications including photonic quantum information processing, optical signal processing, and microwave photonics.