scholarly journals POWFRTS: Power Optimization in WAN for Real Time Scenario

2020 ◽  
pp. 196-203
Author(s):  
Prakash S. Prasad ◽  
Rashi Chouksey
Keyword(s):  
Communication Technology ◽  
Large Scale ◽  
Success Factors ◽  
Radio Communication ◽  
Radio Communications ◽  
Heterogeneous Devices ◽  
Space Networks ◽  
The Internet Of Things ◽  
Low Rate

By 2020, over fifty billion devices are connected through radio communications. In conjunction with the rising of the Internet of Things (IOT) market, low power wide space networks (LPWAN) became a most well-liked low-rate long-range radio communication technology. Sigfox, LORA, and NB-IoT are the 3 leading LPWAN technologies that vie for large-scale IoT preparation. This provides a comprehensive and comparative study of these technologies that perform economical solutions to connect sensible, autonomous, and heterogeneous devices. We have a tendency to show that Sigfox and LORA are advantageous in terms of battery lifespan, capacity, and cost. Meanwhile, NB-IoT offers advantages in terms of latency and quality of service. To boot, we have a tendency to analyze the IOT success factors of these LPWAN technologies.

scholarly journals Performance of Base Stations in Railway Digital Radio Communication Networks

2021 ◽  
Vol 19 (2) ◽  
pp. 41-48
Author(s):  
Yu. V. Nemtsov ◽  
I. V. Seryogin ◽  
P. I. Volnov
Keyword(s):  
Communication Network ◽  
Communication Networks ◽  
Base Station ◽  
Base Stations ◽  
Radio Communication ◽  
Radio Communications ◽  
Digital Radio ◽  
Cargo Transportation ◽  
Assess Quality

Base station (BS) is a terminal device of a radio communication network, while railway radio communications play an important role in ensuring safety of passenger and cargo transportation.A proposed method for calculating the performance of base stations in railway digital radio communication networks is intended to calculate for the BS the probabilities of being in certain state.BS was decomposed and such functional elements as circuit groups and a radio frequency path were identified, as well as the central module ensuring the exchange of information with elements of this BS and with other BSs. A detailed study of each element has increased accuracy of the proposed method. Following the Markov model, BS is presented as a system in which all possible states are considered. Models for BS with two and three circuit groups have been constructed. The parameters of each functional element of the model can be obtained through observation over a certain period. The solution of the system of equations for each of the models presented in the article will allow obtaining the values of the system being in a certain state. The obtained characteristics can be used to calculate the reliability of the entire radio communication network, and then to assess quality of service provided to the users of this network.Conclusions are made about the possibilities of using the obtained models when designing new railway communication networks and when calculating quality indices of existing ones. The proposed models can be applied not only to railway radio communication networks but also to mobile communication networks of commercial operators. 

scholarly journals E-Gov Implementation Analysis Through SILPa KAMI Application in DISKOMINFOARPUS, Cimahi City

2021 ◽  
Vol 24 (2) ◽  
pp. 1
Author(s):  
Yunni Susanty ◽  
Yuyu Yuningsih
Keyword(s):  
Information And Communication Technology ◽  
Communication Technology ◽  
Local Governments ◽  
Success Factors ◽  
Business Environment ◽  
Information And Communication ◽  
Qualitative Descriptive ◽  
Management Aspect ◽  
Descriptive Method

The development of information and communication technology (ICT) has been implemented in various fields, including in government. To support the implementation of e-Government (e-Gov) and improve the quality of public services, many technology-based applications have been created by government agencies, both central and local governments. DISKOMINFOARPUS Cimahi City built an application called SILPa KAMI to support the vision of Cimahi Smart City. This study uses a qualitative descriptive method that aims to determine how the implementation and sustainability of the SILPa KAMI application and what kind of characteristics the agencies should have so it can replicate this application. The results of the study reveal that the implementation of the SILPa KAMI application is running well because it has fulfilled various success factors of e-Gov implementation which is also marked by the sustainability even though there are still obstacles. Also, the use of ICT based on the e-leadership aspect, the information network infrastructure aspect, the information management aspect, the business environment aspect, as well as the community and human resources aspect has been optimally utilized. This application is relatively easy to be replicated by other agencies. The agencies that can replicate this application must have the availability of budget, the availability of related facilities and infrastructure and the availability of reliable ICT managers.

A Large-Scale Device Collaboration Resource Selection Method with Multi-QoS Constraint Supported

2010 ◽  
Vol 143-144 ◽  
pp. 894-898
Author(s):  
Xiao Hui Rong ◽  
Pan Deng ◽  
Feng Chen
Keyword(s):  
Resource Selection ◽  
Large Scale ◽  
Rapid Development ◽  
Prototype System ◽  
Model Composite ◽  
Performance Requirements ◽  
System A ◽  
Relation Model ◽  
The Internet Of Things

With the rapid development of the “Internet of Things” and large-scale area management, device collaboration has developed to the stage of large-scale device collaboration. Aiming at the large-scale, dynamics and real-time of the large-scale device collaboration system, in order to ensure the performance of the large-scale device collaboration system, a Quality of Service(QoS) model of large-scale device collaboration is proposed, which contains device QoS model, composite QoS model and QoS relation model. Based on the model, an algorithm of the resource selection in large-scale device collaboration system is presented. Finally, the result of simulation experiments on the large-scale device collaboration prototype system shows that the method can satisfy the performance requirements of the large-scale device collaboration system.

scholarly journals Efficient Byzantine Consensus Mechanism Based on Reputation in IoT Blockchain

2021 ◽  
Vol 2021 ◽  
pp. 1-14
Author(s):  
Xu Yuan ◽  
Fang Luo ◽  
Muhammad Zeeshan Haider ◽  
Zhikui Chen ◽  
Yucheng Li
Keyword(s):  
Internet Of Things ◽  
Large Scale ◽  
Consensus Algorithm ◽  
Consensus Algorithms ◽  
Heterogeneous Devices ◽  
Blockchain Technology ◽  
Critical Problems ◽  
Iot Devices ◽  
Reliability And Robustness ◽  
The Internet Of Things

Blockchain technology has advanced rapidly in recent years and is now widely used in a variety of fields. Blockchain appears to be one of the best solutions for managing massive heterogeneous devices while achieving advanced data security and data reputation, particularly in the field of large-scale IoT (Internet of Things) networks. Despite the numerous advantages, there are still challenges while deploying IoT applications on blockchain systems due to the limited storage, power, and computing capability of IoT devices, and some of these problems are caused by the consensus algorithm, which plays a significant role in blockchain systems by ensuring overall system reliability and robustness. Nonetheless, most existing consensus algorithms are prone to poor node reliability, low transaction per second (TPS) rates, and scalability issues. Aiming at some critical problems in the existing consensus algorithms, this paper proposes the Efficient Byzantine Reputation-based Consensus (EBRC) mechanism to resolve the issues raised above. In comparison to traditional algorithms, we reinvented ways to evaluate node reliability and robustness and manage active nodes. Our experiments show that the EBRC algorithm has lower consensus delay, higher throughput, improved security, and lower verification costs. It offers new reference ideas for solving the Internet of Things+blockchain+Internet court construction problem.

scholarly journals Automating IoT Data Ingestion Enabling Visual Representation

Sensors ◽  
2021 ◽  
Vol 21 (24) ◽  
pp. 8429
Author(s):  
Ala Arman ◽  
Pierfrancesco Bellini ◽  
Daniele Bologna ◽  
Paolo Nesi ◽  
Gianni Pantaleo ◽  
...  
Keyword(s):  
Visual Analytics ◽  
Visual Representation ◽  
Heterogeneous Devices ◽  
Device Model ◽  
Whole Process ◽  
Data Ingestion ◽  
Iot Devices ◽  
Definition Of ◽  
The Internet Of Things

The Internet of things has produced several heterogeneous devices and data models for sensors/actuators, physical and virtual. Corresponding data must be aggregated and their models have to be put in relationships with the general knowledge to make them immediately usable by visual analytics tools, APIs, and other devices. In this paper, models and tools for data ingestion and regularization are presented to simplify and enable the automated visual representation of corresponding data. The addressed problems are related to the (i) regularization of the high heterogeneity of data that are available in the IoT devices (physical or virtual) and KPIs (key performance indicators), thus allowing such data in elements of hypercubes to be reported, and (ii) the possibility of providing final users with an index on views and data structures that can be directly exploited by graphical widgets of visual analytics tools, according to different operators. The solution analyzes the loaded data to extract and generate the IoT device model, as well as to create the instances of the device and generate eventual time series. The whole process allows data for visual analytics and dashboarding to be prepared in a few clicks. The proposed IoT device model is compliant with FIWARE NGSI and is supported by a formal definition of data characterization in terms of value type, value unit, and data type. The resulting data model has been enforced into the Snap4City dashboard wizard and tool, which is a GDPR-compliant multitenant architecture. The solution has been developed and validated by considering six different pilots in Europe for collecting big data to monitor and reason people flows and tourism with the aim of improving quality of service; it has been developed in the context of the HERIT-DATA Interreg project and on top of Snap4City infrastructure and tools. The model turned out to be capable of meeting all the requirements of HERIT-DATA, while some of the visual representation tools still need to be updated and furtherly developed to add a few features.

Self-Managed System for Distributed Wireless Sensor Networks

2020 ◽  
pp. 189-210
Author(s):  
Sneh Garg ◽  
Ram Bahadur Patel
Keyword(s):  
Wireless Sensor Networks ◽  
Sensor Networks ◽  
Large Scale ◽  
Network Control ◽  
Wireless Sensor ◽  
Radio Communication ◽  
Network Systems ◽  
Managing System ◽  
Hostile Environments

With the advancements in technology, wireless sensor networks (WSNs) are used almost in all applications. These sensor network systems are sometimes used to monitor hostile environments where human intervention is not possible. When sensing is required to be done in areas that are hostile, there is need for autonomous/self-managing systems as it is very difficult for the human to intervene within such hostile environmental conditions. Therefore, in such systems, each node is required to do all functionalities and act like autonomous decision taking node that performs both data forwarding and network control. Therefore, introducing a self-management for large-scale distributed wireless system is a highly tedious task due to resource constrained nature of these nodes. It is very difficult to achieve required quality of service by large systems as a huge amount of energy is dissipated by systems in radio communication. Owing to resource constraint as well as vulnerable nature, developing a self-managing system for distributed WSN is a very challenging and demanding task.

scholarly journals DEVELOPMENT OF THEORETICAL PROVISIONS OF TRANSMISSION OF DISCRETE MESSAGES OF MILITARY RADIOCOMMUNICATION SYSTEMS

2020 ◽  
Vol 2 (60) ◽  
pp. 180-183
Author(s):  
A. Shyshatskyi ◽  
O. Cherniak ◽  
A. Lyashenko ◽  
S. Paniuk ◽  
A. Doroshets ◽  
...  
Keyword(s):  
Communication Systems ◽  
Communication Theory ◽  
Link Quality ◽  
Practical Significance ◽  
Radio Communication ◽  
Radio Communications ◽  
Finite Duration ◽  
Radio Systems ◽  
Signal Fading

Modern military radio systems operate in the complex conditions of the electronic environment, due to the limited frequency range, the influence of deliberate interference and signal fading. One of the ways to improve the effectiveness of military radio communication systems is to develop indicators (methods, techniques) for evaluating the effectiveness of military radio communication systems. The analysis found that known approaches to evaluating the performance of military radio communications systems are based on the use of bit error probability in a channel, which is a rather rough indicator of channel estimation. This necessitates the development of theoretical provisions for the transmission of discrete messages to military radio systems. In order to improve the known theoretical provisions for the transmission of discrete messages of military radio communication systems, the authors of the article developed indicators for assessing the quality of functioning of military radio communication systems that operate in complex conditions of electronic conditions. In the course of the study, the authors of the research substantiated two indicators of link quality in the fading channel: the probability of correctly receiving a message of finite duration and the likelihood of a link of finite duration without breaks. The first metric is the overall metric (communication) quality of the communication, and the second metric is the quality of the channel in the session of the final duration. During the research, the authors used the basic principles of communication theory, theories of insecurity, the theory of transmission of discrete messages, etc. The proposed results can be used to evaluate the status of radio channels when they are exposed to a variety of origins and signal fading. The practical significance of these results is that they can be used to upgrade existing radios or to develop new ones by developing appropriate software

scholarly journals Internet of Things (IOT) as the future of networked devices: An overview

2021 ◽  
Vol 9 (3) ◽  
pp. 031-037
Author(s):  
Godson S Olusanya ◽  
Charles Okunbor ◽  
Oghenetega Avwokuruaye
Keyword(s):  
Internet Of Things ◽  
Large Scale ◽  
Computer Systems ◽  
Smart Phone ◽  
Internet Technology ◽  
The Internet ◽  
Extensive Literature ◽  
Human Beings ◽  
The Internet Of Things

The internet being a major tool in the globalization of the world has made it possible for human beings to interact, share and access information on a very large scale without distance being a barrier. Computer systems with broad functionalities like the desktop, laptop and smart phone are connected through the internet. But going beyond just connecting computer systems to the internet, the Internet of Things connects devices and objects together and to the internet. The Internet of Things (IoT) is a developing paradigm that makes communication and gathering of data possible between electronic devices, objects and sensors through internet technology, with the aim of improving quality of life. IoT is seen to be a big player in the networking of future devices and the internet but has some challenges that needs to be addressed. This paper through extensive literature review, highlighted the progress made by IoT, its applications in different sectors, the challenges faced by this technology for its full actualization and also its future projections.

scholarly journals Simulation, modelling and packet sniffing facilities for IoT: A systematic analysis

2020 ◽  
Vol 10 (3) ◽  
pp. 2755
Author(s):  
Bimal Patel ◽  
Parth Shah
Keyword(s):  
Simulation Modelling ◽  
Vital Role ◽  
Systematic Analysis ◽  
Heterogeneous Devices ◽  
Depth Analysis ◽  
Intelligent Devices ◽  
Design Characteristics ◽  
Simulated Analysis ◽  
The Internet Of Things

Man and Machine in terms of heterogeneous devices and sensors collaborate giving birth to the Internet of Things, Internet of future. Within a short span of time 30billions intelligent devices in form of smart applications will get connected making it difficult to test and debug in terms of time and cost.Simulators play vital role in verifying application and providing security before actually deploying it in real environment.Due to constraint environment in terms of memory, computation, and energy this review paper under a single umbrella will throw insight on comprehensive and in-depth analysis keeping in mind various barriers, critical design characteristics along with the comparison of candidate simulator and packet sniffing tool. Post simulated analysis play vital role in deciding behavior of data and helping research community to satisfy quality of service parameters.This review makes it feasible to make an appropriate choice for simulators and network analyzer tool easy fulfilling needs and making IoT a reality

scholarly journals Topology influence on the radio communication range of sensor networks

2020 ◽  
Vol 2 (1) ◽  
pp. 17-24
Author(s):  
F. Tsvetanov ◽  
I. Georgieva ◽  
M. Pandurski
Keyword(s):  
Communication Technologies ◽  
Appropriate Technology ◽  
Packet Transmission ◽  
Security Requirements ◽  
Battery Life ◽  
Radio Communication ◽  
Communication Range ◽  
The Internet Of Things ◽  
Research Show

The Internet of Things (IoT) applications use wireless technologies in order to establish Internet connection. Communication technologies such as Wi-Fi, cellular, ZigBee, Bluetooth, etc. are used to transfer data in IoT. The choice of the appropriate technology or combination of technologies depends on the type of application, its characteristics, user requirements, and other factors such as communication range, security requirements, battery life, etc. In our project, we will focus on Star, Cluster and Mesh wireless topologies, conduct comparative analysis between them, and testing different XBee devices with specialized software. The experiments are connected to the quality of the transferred data using different XBee devices and how this will affect the transmission range. The results of our research show that in terms of the range and quality of packet transmission, the cluster topology shows the best results.

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