scholarly journals LORA (Long Range) Based Low Power Emergency Tracking System in Disaster Areas

2021 ◽  
Author(s):  
S. Sweetline Shamini ◽  
A.P. Anuja ◽  
B. Archana ◽  
P. Premalakshmi
Keyword(s):  
Communication Network ◽  
Disaster Management ◽  
Information Flow ◽  
Police Officers ◽  
Tracking System ◽  
Base Station ◽  
Geological Environment ◽  
Power Generators ◽  
Radio Equipment ◽  
Medical Teams

The communication network is one of the major assistances for disaster management purposes. At each disaster phase, the information flow between the disaster management departments and the population is critical, as it destroys the whole communication infrastructure where the base station to Mobile Switching Centre (MSC) connectivity is broken, power generators are exhausted, and the network may suffer from congestion. Even when radio equipment works, police officers, rescue teams, medical teams cannot communicate with each other because of incompatible radios. To analyze the characteristics of the geological environment in the disaster region and to alert the Disaster Management Department, this solution based on LoRa has been proposed. The penultimate goal of this paper is to fasten the rescue operations.

METHOD OF INCREASING THE STABILITY OF THE INFORMATION AND COMMUNICATION NETWORK UNDER THE INFLUENCE OF THE ENEMY BASED ON THE DETERMINATION OF THE REFERENCE NETWORK VERSION

2020 ◽  
Author(s):  
С.А. БАГРЕЦОВ ◽  
Э.А. БУДАРИН ◽  
О.С. ЛАУТА ◽  
М.В. МИТРОФАНОВ
Keyword(s):  
Communication Network ◽  
Information Flow ◽  
Network Traffic ◽  
Communication Systems ◽  
Reference Network ◽  
Computing Systems ◽  
Electronic Warfare ◽  
Information And Communication ◽  
The Stability

Сетевой трафик, проходящий через современные вычислительные системы, представляет собой огромный информационный поток, который содержит сведения различной степени важности. Показана необходимость использования наиболее рациональных приемов повышения устойчивости сети в радиоэлектронной борьбе, чтобы заставить противника затрачивать больше времени на подбор новых принципов воздействия на системы связи. Network traffic passing through modern computing systems is a huge information flow, which contains information of varying degrees of importance. It is shown the necessity of using the most rational methods of increasing the stability of the network in electronic warfare to force the enemy to spend more time on selecting new principles of influence on communication systems.

scholarly journals Research on Distributed 5G Signal Coverage Detection Algorithm Based on PSO-BP-Kriging

Sensors ◽  
2018 ◽  
Vol 18 (12) ◽  
pp. 4390
Author(s):  
Tingli Xiang ◽  
Hongjun Wang
Keyword(s):  
Neural Network ◽  
Communication Network ◽  
Mobile Communication ◽  
Detection Algorithm ◽  
Base Station ◽  
Distributed Sensor ◽  
Mobile Communication Network ◽  
The Neural Network ◽  
Signal Coverage ◽  
5G Mobile Communication

In order to overcome the limitations of traditional road test methods in 5G mobile communication network signal coverage detection, a signal coverage detection algorithm based on distributed sensor network for 5G mobile communication network is proposed. First, the received signal strength of the communication base station is collected and pre-processed by randomly deploying distributed sensor nodes. Then, the neural network objective function is modified by using the variogram function, and the initial weight coefficient of the neural network is optimized by using the improved particle swarm optimization algorithm. Next, the trained network model is used to interpolate the perceptual blind zone. Finally, the sensor node sampling data and the interpolation estimation result are combined to generate an effective coverage of the 5G mobile communication network signal. Simulation results indicate that the proposed algorithm can detect the real situation of 5G mobile communication network signal coverage better than other algorithms, and has certain feasibility and application prospects.

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. 

Reliable Communication Network for Emergency Response and Disaster Management in Underground Mines

2019 ◽  
pp. 195-239
Author(s):  
S. M. Kamruzzaman ◽  
Xavier Fernando ◽  
Muhammad Jaseemuddin ◽  
Wisam Farjow
Keyword(s):  
Communication Network ◽  
Disaster Management ◽  
Emergency Response ◽  
Safety Management ◽  
Emergency Situation ◽  
Underground Mines ◽  
Mine Safety ◽  
Tracking Systems ◽  
Reliable Communication ◽  
Backbone Networks

Emergency response and disaster management in underground mines are very challenging due to the hostile nature. Environment monitoring in mines has been an obligatory requirement to ensure safe working conditions for miners. Reliable communication network is essential to quickly detect the underground condition especially in emergency situation and to conduct proper rescue operations. This chapter presents an overview of reliable communication network needed for emergency response and disaster management in underground mines. The chapter begins by introducing the most common accidents occurring in the mining, underground mine environment and channel properties. Subsequently, communications in underground mines, existing underground communication and tracking systems, and disaster forecasting & mine safety management are discussed. The chapter also covers post-disaster mine communications & tracking systems and optimized backbone networks for underground mines. Finally, the chapter concludes by reporting relevant research at Ryerson Communications Lab and pointing out some open issues and possible research directions.

Efficient Deployment of ICT Tools in Disaster Management Process

2011 ◽  
pp. 95-107 ◽  
Author(s):  
Aysu Sagun
Keyword(s):  
Disaster Management ◽  
Information Flow ◽  
Management Process ◽  
Critical Factors ◽  
Management Processes ◽  
Nature Of Information ◽  
Information And Communication ◽  
Efficient Integration ◽  
Ict Tools ◽  
Three Stages

This chapter will emphasize that efficient integration of Information and Communication Technology (ICT) in disaster management process can help mitigation of impacts of disasters on people and the environment, minimizing the failures and maximizing the collaboration. It summarizes the nature of information flow and management processes during disasters and the potential of recent ICT at three stages of disaster management. The requirements and problems faced during their deployment at different stages of disaster management process are stated. The solutions for common constraints are discussed as well as the critical factors that should be considered in efficient deployment of ICT in the disaster management process.

scholarly journals Quadcopter-Based Rapid Response First-Aid Unit with Live Video Monitoring

Drones ◽  
2019 ◽  
Vol 3 (2) ◽  
pp. 37 ◽  
Author(s):  
Rizwan ◽  
Shehzad ◽  
Awais
Keyword(s):  
Global Positioning System ◽  
Tracking System ◽  
First Aid ◽  
Base Station ◽  
Rapid Response ◽  
Air Transport ◽  
Head Tracking ◽  
Positioning System ◽  
Global Positioning ◽  
Collision Avoidance System

Air transport is the fastest way to reach areas with no direct land routes for ambulances. This paper presents the development of a quadcopter-based rapid response unit in an efficient aerial aid system to eliminate the delay time for first aid supplies. The system comprises a health monitoring and calling system for a field person working in open areas and a base station with the quadcopter. In an uncertain situation, the quadcopter is deployed from the base station towards the field person for immediate help through the specified path using constant Global System for Mobile (GSM)- and Global Positioning System (GPS)-based connections. The entire operation can be monitored at the base station with a Virtual Reality (VR) head-tracking system supported by a smartphone. The camera installed on the quadcopter is synchronized with the operator’s head movement while wearing a VR head-tracking system at the base station. Moreover, an Infrared (IR)-based obstacle-evasion model is implemented separately to explain the working of the autonomous collision-avoidance system. The system was tested, which confirmed the reduction in the response time to supply aid to the desired locations.

scholarly journals Framework Enhancement for Common Public Radio Interface in SBTS

2018 ◽  
Vol 7 (3.12) ◽  
pp. 38
Author(s):  
Anuradha V ◽  
Shankar R
Keyword(s):  
Service Provider ◽  
Rapid Growth ◽  
Base Station ◽  
Mobile Users ◽  
Public Radio ◽  
Radio Interface ◽  
Basic Frame ◽  
Radio Equipment ◽  
The Common

There is a rapid growth of mobile users so there are developing more number of features by a service provider to support more number of mobile users. The Common Public Radio Interface (CPRI) is an interface between the Radio Equipment Controller (REC) and Radio Equipment (RE) to support more number of users. This simplifies the overall architecture of radio base station. The radio base station is centralized and the radio heads are distributed in the environment. This radio heads supports the more number of users. The main aim of CPRI is to divide the packets into number of frames. The radio frame is divided into the hyper frames and this hyper frame is divided into the number of basic frame in which each basic frame is supported up to 16 words totally it supports up to 6,144 megabytes per second.  

scholarly journals Backhaul-Aware Resource Allocation and Optimum Placement for UAV-Assisted Wireless Communication Network

Electronics ◽  
2020 ◽  
Vol 9 (9) ◽  
pp. 1397
Author(s):  
Yishi Xue ◽  
Bo Xu ◽  
Wenchao Xia ◽  
Jun Zhang ◽  
Hongbo Zhu
Keyword(s):  
Communication Network ◽  
Resource Allocation ◽  
Wireless Communication ◽  
Large Scale ◽  
Optimization Problem ◽  
Matrix Theory ◽  
Base Station ◽  
Achievable Rate ◽  
Multiple User ◽  
Wireless Communication Network

Driven by its agile maneuverability and deployment, the unmanned aerial vehicle (UAV) becomes a potential enabler of the terrestrial networks. In this paper, we consider downlink communications in a UAV-assisted wireless communication network, where a multi-antenna UAV assists the ground base station (GBS) to forward signals to multiple user equipments (UEs). The UAV is associated with the GBS through in-band wireless backhaul, which shares the spectrum resource with the access links between UEs and the UAV. The optimization problem is formulated to maximize the downlink ergodic sum-rate by jointly optimizing UAV placement, spectrum resource allocation and transmit power matrix of the UAV. The deterministic equivalents of UE’s achievable rate and backhaul capacity are first derived by utilizing large-dimensional random matrix theory, in which, only the slowly varying large-scale channel state information is required. An approximation problem of the joint optimization problem is then introduced based on the deterministic equivalents. Finally, an algorithm is proposed to obtain the optimal solution of the approximate problem. Simulation results are provided to validate the accuracy of the deterministic equivalents, and the effectiveness of the proposed method.

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