scholarly journals Evaluating the user experience of acoustic data transmission

2019 ◽  
Vol 24 (5) ◽  
pp. 655-668 ◽  
Author(s):  
Adib Mehrabi ◽  
Antonella Mazzoni ◽  
Daniel Jones ◽  
Anthony Steed
Keyword(s):  
User Experience ◽  
Data Transmission ◽  
Data Exchange ◽  
User Study ◽  
Communication Technologies ◽  
Smart Devices ◽  
Structured Interviews ◽  
Physical Effort ◽  
Acoustic Data ◽  
Communication Methods

AbstractUsers of smart devices frequently need to exchange data with people nearby to them. Yet despite the availability of various communication methods, data exchange between co-located devices is often complicated by technical and user experience barriers. A potential solution to these issues is the emerging technology of device-to-device acoustic data transmission. In this work, we investigate the medium-specific properties of sound as a data exchange mechanism, and question how these contribute to the user experience of sharing data. We present a user study comparing three wireless communication technologies (acoustic data transmission, QR codes and Bluetooth), when used for a common and familiar scenario: peer-to-peer sharing of contact information. Overall, the results show that acoustic data transmission provides a rapid means of transferring data (mean transaction time of 2.4 s), in contrast to Bluetooth (8.3 s) and QR (6.3 s), whilst requiring minimal physical effort and user coordination. All QR code transactions were successful on the first attempt; however, some acoustic (5.6%) and Bluetooth (16.7%) transactions required multiple attempts to successfully share a contact. Participants also provided feedback on their user experience via surveys and semi-structured interviews. Perceived transaction time, physical effort, and connectivity issues. Specifically, users expressed frustration with Bluetooth due to device selection issues, and with QR for the physical coordination required to scan codes. The findings indicate that acoustic data transmission has unique advantages in facilitating information sharing and interaction between co-located users.

Research and Improvement of the Performance of Road Transport Wireless Communication Networks

2021 ◽  
Author(s):  
◽  
Arnis Ancāns
Keyword(s):  
Communication Network ◽  
Wireless Network ◽  
Data Transmission ◽  
Data Exchange ◽  
Road Transport ◽  
Transport Systems ◽  
Smart Devices ◽  
Ieee 802.11N ◽  
Doctoral Thesis ◽  
Number Of Customers

Global development trends such as the increase in the number of cars, an increased number of smart devices with wireless network connections, and the rapid increase in the amount of transmitted information promote the demand for higher data exchange speed, mobility, and higher level of connectivity. Consequently, data transmission services are also required when users travel by vehicle. As the number of vehicles increases, the problems related to road safety and traffic flow management need to be addressed as well. These problems underline the need for modern, technically, and economically justified communication solutions for Intelligent Transport Systems (ITS). One of the wireless network technologies that can be used for ITS needs, in particular for providing car passengers with access to the data transmission network, is WLAN IEEE 802.11n/ac. The implementation of such WLAN-based automotive wireless access networks requires several issues to be addressed, mainly related to fast-moving objects. In practice, a two-rank wireless network is used, which can provide access to the Internet. Several testbeds of a two-rank road transport communication network using WLAN IEEE 802.11n and LTE technologies were created and studied in the developed Doctoral Thesis. The change in the traffic characteristics of a two-rank communication network was experimentally assessed using LTE hardware from various manufacturers. The performance of such hybrid communication channels was studied depending on the velocity of mobile customers, the number of customers, and the traffic scenarios used. New relationships characterising the performance of the integrated IEEE 802.11n and LTE road transport networks and describing the dependence of network throughput on the velocity of mobile client movement were obtained. A single-rank IEEE 802.11ac technology-based automotive communications testbed has also been developed and studied within the Doctoral Thesis. An improved handover algorithm based on the IEEE 802.11v protocol has been developed and implemented during the research. The relationships describing the performance of such single-rank automotive communication network were theoretically evaluated.

scholarly journals Automated system for dispatching the movement of unmanned aerial vehicles with a distributed survey of flight tasks

2021 ◽  
Vol 30 (1) ◽  
pp. 728-738
Author(s):  
Dmitry Gura ◽  
Victor Rukhlinskiy ◽  
Valeriy Sharov ◽  
Anatoliy Bogoyavlenskiy
Keyword(s):  
Unmanned Aerial Vehicles ◽  
Communication Systems ◽  
Data Exchange ◽  
Video Recording ◽  
Communication Technologies ◽  
Automated System ◽  
Military Industry ◽  
Communication Problems ◽  
Aerial Vehicles ◽  
The Military

Abstract Over the past decade, unmanned aerial vehicles (UAVs) have received increasing attention and are being used in the areas of harvesting, videotaping, and the military industry. In this article, the consideration is focused on areas where video recording is required for ground inspections. This paper describes modern communication technologies and systems that enable interaction and data exchange between UAVs and a ground control station (GCS). This article focuses on different architectures of communication systems, establishing the characteristics of each to identify the preferred architecture that does not require a significant consumption of resources and whose data transmission is reliable. A coherent architecture that includes multiple UAVs, wireless sensor networks, cellular networks, GCSs, and satellite network to duplicate communications for enhanced system security has been offered. Some reliability problems have been discussed, the solution of which was suggested to be a backup connection via satellite, i.e., a second connection. This study focused not only on the communication channels but also on the data exchanged between system components, indicating the purpose of their application. Some of the communication problems and shortcomings of various systems, as well as further focus areas and improvement recommendations were discussed.

Monitoring and Warning System of Highway Environmental Parameters Based on GSM

2013 ◽  
Vol 329 ◽  
pp. 22-25
Author(s):  
Zhuo Jun Shen
Keyword(s):  
Data Transmission ◽  
Detection System ◽  
Warning System ◽  
Environmental Parameters ◽  
Mobile Network ◽  
Communication Technologies ◽  
Short Message ◽  
Single Chip ◽  
Message Service ◽  
Highway System

Mobile network signal is the basic coverage along the highway, and the GSM mobile communication technologies provide a powerful and reliable short message service and data transmission services, a variety of applications based on GSM data transmission platform is also being developed. The paper focuses on highway visibility detection and speed detection, system is constitute of a communication unit that uses the TC35i module and STC89C54 single chip, As well as hardware and software design of the method, GSM precautions in the design process of the highway system are briefly described.

scholarly journals A Implementação da Telemedicina em Cabo Verde: Fatores Influenciadores

2017 ◽  
Vol 30 (4) ◽  
pp. 255 ◽  
Author(s):  
Artur Correia ◽  
Vanda Azevedo ◽  
Luís Velez Lapão
Keyword(s):  
Information And Communication Technologies ◽  
Success Factors ◽  
New Technology ◽  
Policy Instruments ◽  
Critical Factor ◽  
Communication Technologies ◽  
Cape Verde ◽  
Structured Interviews ◽  
Conditioning Factors ◽  
Information And Communication

Introduction: Telemedicine is the provision of health services, where distance is a critical factor, using information and communication technologies. Cape Verde has bet on using this tool to increase access of the population of its islands to specialized care.Material and Methods: Qualitative study, covering the period between 2013 and 2014. It uses document analysis, semi-structured interviews and focus groups to collect data and analysis of content for their analysis. The participant population includes doctors, nurses and professionals from some institutions related to telemedicine.Results: The priorities of the National Telemedicine Program are set, the cores and reference centers are operational, with trained personnel and equipment installed. Several other policy instruments and conditioning factors and facilitators of the program have been identified.Discussion: Telemedicine is contributing to the reduction of inequalities in access to health, in Cape Verde. However, the full adoption of a service based on a new technology depends on conditioning factors and facilitators, and several success factors of telemedicine, identified in the literature, are not observed and in conjunction with other existing weaknesses affect the overall development of the National Telemedicine Program. However the strengths and capabilities are highlighted opportunities to act.Conclusion: Despite the progress, some telemedicine success factors highlighted on the literature are not seen in the country.

scholarly journals Negative UX-Based Approach for Deriving Sustainability Requirements

2021 ◽  
Author(s):  
Nelly Condori-Fernandez ◽  
Marcela Quispe-Cruz ◽  
Alejandro Catala ◽  
Joao Araujo ◽  
Patricia Lago
Keyword(s):  
System Design ◽  
User Experience ◽  
User Study ◽  
Software Systems ◽  
Repetitive Strain Injury ◽  
Economic Sustainability ◽  
Working Environments ◽  
Repetitive Strain

In this chapter, a Negative User Experience (NUX)-based method for deriving sustainability requirements of persuasive software systems is proposed. The method relies on the analysis of NUX assessment, and the exploitation of relationships between the SQ model and the PSD model, which are well-known models for sustainability-quality in software systems and persuasive system design respectively. To illustrate the method, a user study has been conducted involving people in their real working environments while using specific software intended to change their behavior for preventing or reducing repetitive strain injury (RSI). The method allowed us to discover thirteen requirements that contribute to social, technical and economic sustainability dimensions.

scholarly journals ISO/IEEE 11073 Treadmill Interoperability Framework and its Test Method: Design and Implementation (Preprint)

2020 ◽  
Author(s):  
Zhi Yong Huang ◽  
Yujie Wang ◽  
Linling Wang
Keyword(s):  
Data Transmission ◽  
Data Exchange ◽  
Service Providers ◽  
Test Method ◽  
Noncommunicable Diseases ◽  
Management Service ◽  
Transmission Scheme ◽  
Compliance Testing ◽  
Health And Fitness ◽  
Ieee 11073

BACKGROUND Regular physical activity is proven to help prevent and treat noncommunicable diseases such as heart disease, stroke, diabetes, and breast and colon cancer. The exercise data generated by health and fitness devices (eg, treadmill, exercise bike) are very important for health management service providers to develop personalized training programs. However, at present, there is little research on a unified interoperability framework in the health and fitness domain, and there are not many solutions; besides, the privatized treadmill data transmission scheme is not conducive to data integration and analysis. OBJECTIVE This article will expand the IEEE 11073-PHD standard protocol family, develop standards for health and fitness device (using treadmill as an example) based on the latest version of the 11073-20601 optimized exchange protocol, and design protocol standards compliance testing process and inspection software, which can automatically detect whether the instantiated object of the treadmill meets the standard. METHODS The study includes the following steps: (1) Map the data transmitted by the treadmill to the 11073-PHD objects; (2) Construct a programming language structure corresponding to the 11073-PHD application protocol data unit (APDU) to complete the coding and decoding part of the test software; and (3) Transmit the instantiated simulated treadmill data to the gateway test software through transmission control protocol for standard compliance testing. RESULTS According to the characteristics of the treadmill, a data exchange framework conforming to 11073-PHD is constructed, and a corresponding testing framework is developed; a treadmill agent simulation is implemented, and the interoperability test is performed. Through the designed testing process, the corresponding testing software was developed to complete the standard compliance testing of the treadmill. CONCLUSIONS The extended research of IEEE 11073-PHD in the field of health and fitness provides a potential new idea for the data transmission framework of sports equipment such as treadmills, which may also provide some help for the development of sports health equipment interoperability standards.

scholarly journals An analysis of the policies of Information and Communication Technologies for Agriculture in Mali

2020 ◽  
Vol 16 ◽  
pp. 100-117
Author(s):  
Macire Kante ◽  
Patrick Ndayizigamiye
Keyword(s):  
Information And Communication Technologies ◽  
Agricultural Sector ◽  
Qualitative Content Analysis ◽  
National Policy ◽  
Communication Technologies ◽  
Structured Interviews ◽  
Policy Documents ◽  
Information And Communication ◽  
Production Areas ◽  
National Framework

To harness the potential of Information and Communication Technologies (ICTs), developing countries need to develop national ICT policies that will serve as a framework for integrating ICTs at all levels of society. In the absence of that, different actors often engage in various actions for the same beneficiaries and in pursuit of the same objectives. That raises the need to define a national framework for the promotion and application of ICTs in the various production areas, particularly agricultural ones. It is for that reason that this study examined through qualitative methods (policy documents and semi-structured interviews) the national policy of Mali on the use of ICTs in agriculture. Data was analysed using the Qualitative Content Analysis (QCA) method with the aid of NVIVO 12 software. The results showed that the country has two policy documents that articulate the country’s strategy towards the use of ICTs in the agricultural sector, that is, the Agricultural Orientation Law and the National Strategy for the Development of the Digital Economy. Further examination revealed that that these two policy documents are neither appropriate nor coherent in today's Malian landscape. This has resulted in an underutilisation of digital tools by agricultural extension officers which led to the low agricultural productivity in the country. This study recommended therefore the recasting of both documents to take into account the reported observations

scholarly journals Communication and Networking Technologies for UAVs: A Survey

2020 ◽  
Author(s):  
Chathuranga M. Wijerathna Basnayaka ◽  
Dushantha Nalin K. Jayakody
Keyword(s):  
Research Work ◽  
Communication Technologies ◽  
Lessons Learned ◽  
Optimization Techniques ◽  
Network Architectures ◽  
Vehicle Communication ◽  
Work Related ◽  
Aerial Vehicle ◽  
Networking Technologies ◽  
Communication Methods

With the advancement in drone technology, in just a few years, drones will be assisting humans in every domain. But there are many challenges to be tackled, communication being the chief one. This paper aims at providing insights into the latest UAV (Unmanned Aerial Vehicle) communication technologies through investigation of suitable task modules, antennas, resource handling platforms, and network architectures. Additionally, we explore techniques such as machine learning and path planning to enhance existing drone communication methods. Encryption and optimization techniques for ensuring long−lasting and secure communications, as well as for power management, are discussed. Moreover, applications of UAV networks for different contextual uses ranging from navigation to surveillance, URLLC (Ultra-reliable and low−latency communications), edge computing and work related to artificial intelligence are examined. In particular, the intricate interplay between UAV, advanced cellular communication, and internet of things constitutes one of the focal points of this paper. The survey encompasses lessons learned, insights, challenges, open issues, and future directions in UAV communications. Our literature review reveals the need for more research work on drone−to−drone and drone−to−device communications.

scholarly journals Publish and Subscribe-Based Formation and Containment Control of Heterogeneous Robotic System with Actuator Time Delay

2021 ◽  
Vol 11 (19) ◽  
pp. 9145
Author(s):  
Siddig M. Elkhider ◽  
Omar Al-Buraiki ◽  
Sami El-Ferik
Keyword(s):  
Time Delay ◽  
Obstacle Avoidance ◽  
Data Transmission ◽  
Data Exchange ◽  
Autonomous Underwater Vehicles ◽  
Underwater Vehicles ◽  
Containment Control ◽  
L1 Adaptive Control ◽  
Navigation Algorithm ◽  
Local Controller

This paper addresses the problem of controlling a heterogeneous system composed of multiple Unmanned Aerial Vehicles (UAVs) and Autonomous Underwater Vehicles (AUVs) for formation and containment maintenance. The proposed approach considers actuator time delay and, in addition to formation and containment, considers obstacle avoidance, and offers a robust navigation algorithm and uses a reliable middleware for data transmission and exchange. The methodology followed uses both flocking technique and modified L1 adaptive control to ensure the proper navigation and coordination while avoiding obstacles. The data exchange between all the agents is provided through the data distribution services (DDS) middleware, which solves the interoperability issue when dealing with heterogeneous multiagent systems. The modified L1 controller is a local controller for stabilizing the dynamic model of each UAV and AUV, and the flocking approach is used to coordinate the followers around the leader or within the space delimited by their leaders. Potential Field (PF) allows obstacle avoidance during the agents’ movement. The performance of the proposed approach under the considerations mentioned above are verified and demonstrated using simulations.

scholarly journals Simulation and Measurement Studies of The Vdes System’s Terrestrial Component

2019 ◽  
Vol 26 (1) ◽  
pp. 95-106 ◽  
Author(s):  
Krzysztof Bronk ◽  
Patryk Koncicki ◽  
Adam Lipka ◽  
Dominik Rutkowski ◽  
Błażej Wereszko
Keyword(s):  
Data Transmission ◽  
Data Exchange ◽  
Technical Information ◽  
Theoretical Data ◽  
Current Version ◽  
Coding Gain ◽  
Exchange System ◽  
Measurement Results ◽  
Simulation Results ◽  
Theoretical Results

Abstract In the paper, the measurement and simulation results of the VDES (VHF Data Exchange System) terrestrial component are discussed. It is anticipated that VDES will be one of the major solutions for maritime communications in the VHF band and its performance will be sufficient to fulfill the requirements of the e-navigation applications. The process of the VDES standardization (ITU R, IALA) has not been officially completed yet, but substantial amount of technical information about the future system’s terrestrial component (VDE-TER) is already available. The paper is divided into three general parts: (a) theoretical presentation of the system’s physical layer and the radio channels applicable to VDES, (b) simulation results (BER, BLER, channel delay between two propagation paths and its influence on bit rates) and (c) measurement results (useful ranges, BER). It turned out that in real maritime conditions, the VDES system can offer ranges between 25 and 38 km for the configurations assumed during the measurement campaign. Those results are generally compliant with the theoretical data in the line-of-sight conditions. In the NLOS scenarios, where fading becomes the dominant phenomenon, the discrepancies between the measurements and the theoretical results were more significant. The obtained results confirmed that VDES provides a large coding gain, which significantly improves the performance of data transmission and increases the bit rate compared to the existing maritime radiocommunication solutions. It should be noted that the results presented in the article were used by the IALA while developing the current version of the VDES specification.

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