scholarly journals Access Time Analysis of MCPTT Off-Network Mode over LTE

2019 ◽  
Vol 2019 ◽  
pp. 1-19
Author(s):  
Yishen Sun ◽  
Wesley Garey ◽  
Richard Rouil ◽  
Priam Varin
Keyword(s):  
Public Safety ◽  
First Responders ◽  
Analytical Models ◽  
Access Time ◽  
Lte Networks ◽  
Voice Communication ◽  
Parameter Configuration ◽  
Perform Sensitivity Analysis ◽  
Mission Critical ◽  
Network Status

Public safety organizations around the world started migrating toward Long-Term Evolution (LTE) networks to support the increasing needs for video and data. To address the unique voice communication requirements of first responders, the 3rd Generation Partnership Project (3GPP) introduced new capabilities that aim at providing similar functionalities as the traditional Land Mobile Radio (LMR) systems, namely, Direct Mode communication and mission critical push-to-talk (MCPTT). Direct Mode communication, also called Proximity Services (ProSe), allows public safety users to communicate directly with each other regardless of the network status. MCPTT was the first mission critical service, and first application, standardized by 3GPP to provide both on- and off-network voice capability. Assessing the performance of those capabilities is critical to accelerate their deployment and adoption by first responders. In this study, we evaluate the performance of an off-network mode MCPTT device over ProSe by focusing on the access time, a measure of the delay incurred before a user can talk. We develop analytical models for various types of calls and verify the accuracy of the predicted access time using ns-3 simulations. We perform sensitivity analysis to show the validity of the models for various scenarios. Finally, we show how the models can be used to guide parameter configuration for both MCPTT and ProSe to optimize the performance.

scholarly journals SoftPSN: Software-Defined Resource Slicing for Low-Latency Reliable Public Safety Networks

2018 ◽  
Vol 2018 ◽  
pp. 1-7 ◽  
Author(s):  
Anteneh A. Gebremariam ◽  
Muhammad Usman ◽  
Riccardo Bassoli ◽  
Fabrizio Granelli
Keyword(s):  
Public Safety ◽  
First Responders ◽  
Base Station ◽  
Low Latency ◽  
Radio Resource ◽  
Life Saving ◽  
Before And After ◽  
Simulation Results ◽  
Emergency Scenarios ◽  
Safety Applications

Achieving the low-latency constraints of public safety applications during disaster could be life-saving. In the context of public safety scenarios, in this paper, we propose an efficient radio resource slicing algorithm that enables first responders to deliver their life-saving activities effectively. We used the tool of stochastic geometry to model the base station distribution before and after a disaster. In addition, under this umbrella, we also proposed an example of public safety scenario, ultrareliable low-latency file sharing, via in-band device-to-device (D2D) communication. The example scenario is implemented in NS-3. The simulation results show that radio resource slicing and prioritization of first responders resources can ensure ultrareliable low-latency communication (URLLC) in emergency scenarios.

Public safety mission critical voice services over LTE

2011 ◽  
Vol 16 (3) ◽  
pp. 133-149 ◽  
Author(s):  
Kenneth C. Budka ◽  
Thomas Chu ◽  
Tewfik L. Doumi ◽  
Wim Brouwer ◽  
Phil Lamoureux ◽  
...  
Keyword(s):  
Public Safety ◽  
Mission Critical

scholarly journals IEEE Access Special Section Editorial: Mission Critical Public-Safety Communications: Architectures, Enabling Technologies, and Future Applications

IEEE Access ◽  
2018 ◽  
Vol 6 ◽  
pp. 79258-79262 ◽  
Author(s):  
Zeeshan Kaleem ◽  
Mubashir Husain Rehmani ◽  
Muhammad Ali Imran ◽  
Muhammad Zeeshan Shakir ◽  
Abbas Jamalipour ◽  
...  
Keyword(s):  
Public Safety ◽  
Special Section ◽  
Enabling Technologies ◽  
Mission Critical ◽  
Public Safety Communications

scholarly journals Performance Evaluation of Proximity Services and Wi-Fi for Public Safety Mission Critical Voice Application

2020 ◽  
Vol 2020 ◽  
pp. 1-12
Author(s):  
Wesley D. Garey ◽  
Yishen Sun ◽  
Richard A. Rouil
Keyword(s):  
Performance Evaluation ◽  
Rural Areas ◽  
Performance Metrics ◽  
Traffic Load ◽  
Access Time ◽  
Light Traffic ◽  
System Parameters ◽  
Proximity Services ◽  
Mission Critical ◽  
Simulation Results

Proximity Services (ProSe) and Wi-Fi are two promising technologies that may provide support for Mission Critical Voice (MCV) applications in remote and rural areas by enabling Device-to-Device (D2D) communication. In this paper, several performance metrics of ProSe and Wi-Fi are evaluated and compared side-by-side under various configurations. The ns-3 simulation results show that ProSe outperforms Wi-Fi in terms of coverage range and access time with a medium traffic load, while Wi-Fi has a shorter access time under a light traffic load. In addition, with various user densities, ProSe offers better coverage range and access time a majority of the time. The evaluation in this paper provides insights to first responders on what to expect with either technology and how to improve the performance by adjusting different system parameters.

Protecting the Mental Health of First Responders: Legal and Ethical Considerations

2011 ◽  
Vol 39 (S1) ◽  
pp. 56-59 ◽  
Author(s):  
Lainie Rutkow ◽  
Lance Gable ◽  
Jonathan M. Links
Keyword(s):  
Mental Health ◽  
Emergency Preparedness ◽  
Public Safety ◽  
Human Services ◽  
Critical Role ◽  
First Responders ◽  
Ethical Considerations ◽  
The Public

The public safety, human services, health, and relief workers who comprise the first wave of a response to natural or man-made disasters play a critical role in emergency preparedness. These first responders provide care and services in the immediate aftermath of emergencies and may remain in affected communities for weeks or months. They often work long hours under stressful conditions, witnessing the human harms, physical destruction, and psychological devastation that can accompany disasters.

scholarly journals Enabling Next-Generation Public Safety Operations with Mission-Critical Networks and Wearable Applications

Sensors ◽  
2021 ◽  
Vol 21 (17) ◽  
pp. 5790
Author(s):  
Salwa Saafi ◽  
Jiri Hosek ◽  
Aneta Kolackova
Keyword(s):  
Communication Networks ◽  
Public Safety ◽  
Situational Awareness ◽  
Next Generation ◽  
Novel Technologies ◽  
Life Saving ◽  
Mission Critical ◽  
Reliability Performance ◽  
The Impact ◽  
Public Safety Networks

Public safety agencies have been working on the modernization of their communication networks and the enhancement of their mission-critical capabilities with novel technologies and applications. As part of these efforts, migrating from traditional land mobile radio (LMR) systems toward cellular-enabled, next-generation, mission-critical networks is at the top of these agencies’ agendas. In this paper, we provide an overview of cellular technologies ratified by the 3rd Generation Partnership Project (3GPP) to enable next-generation public safety networks. On top of using wireless communication technologies, emergency first responders need to be equipped with advanced devices to develop situational awareness. Therefore, we introduce the concept of the Internet of Life-Saving Things (IoLST) and focus on the role of wearable devices—more precisely, cellular-enabled wearables, in creating new solutions for enhanced public safety operations. Finally, we conduct a performance evaluation of wearable-based, mission-critical applications. So far, most of the mission-critical service evaluations target latency performance without taking into account reliability requirements. In our evaluation, we examine the impact of device- and application-related parameters on the latency and the reliability performance. We also identify major future considerations for better support of the studied requirements in next-generation public safety networks.

scholarly journals Voices of first responders - examining public safety communication from the rural perspective:

2019 ◽  
Author(s):  
Kristen K Greene ◽  
Shane� Dawkins ◽  
Mary F Theofanos ◽  
Michelle Steves ◽  
Susanne Furman ◽  
...  
Keyword(s):  
Public Safety ◽  
First Responders ◽  
Safety Communication

scholarly journals A Solution for Interoperability in Crisis Management

2017 ◽  
Vol 12 (4) ◽  
pp. 550
Author(s):  
Francisco José Pérez ◽  
Marcelo Zambrano ◽  
Manuel Esteve ◽  
Carlos Palau
Keyword(s):  
Information Systems ◽  
Crisis Management ◽  
Public Safety ◽  
First Responders ◽  
Computer Applications ◽  
Information Space ◽  
Common Information ◽  
Exchange Of Information ◽  
European Project ◽  
Common Information Space

To effectively manage a crisis, is necessary the participation of multiple agencies related to protection and public safety, which allow actions in accordance with the demands of environment and requirements of all those affected. Interoperability is the key to comprehensive and comprehensive Crisis Management (CM), that allow to face any type of disaster, at any time or place. For this, it is necessary the permanent exchange of information that enables all the agencies involved, coordinate its operations and collaborate to manage the situation in the best way possible. This article describes the approach to interoperability in CM carried out by Secure European Common Information Space for the Interoperability of First Responders and Police (SECTOR) European Project, which has one of its main objectives, the development of an interoperability platform that allows the agencies involved in the management of a crisis, to achieve a joint, coordinated and collaborative response. The platform has a core, a Common Information Space (CIS), which manage as a single storage entity, all information of the Information Systems (ISs) connected to the platform, regardless of the model of data and computer applications used by each one of them.

scholarly journals Voices of first responders - examining public safety communication problems and requested functionality:

2019 ◽  
Author(s):  
Shanee Dawkins ◽  
Yee-Yin Choong ◽  
Mary F Theofanos ◽  
Kristen K Greene ◽  
Susanne Furman ◽  
...  
Keyword(s):  
Public Safety ◽  
First Responders ◽  
Safety Communication ◽  
Communication Problems
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