Mission-critical user priority-based cooperative resource allocation schemes for multi-layer next-generation public safety networks

2020 ◽  
Vol 38 ◽  
pp. 100926 ◽  
Author(s):  
Ishtiaq Ahmad ◽  
KyungHi Chang
Sensors ◽  
2021 ◽  
Vol 21 (17) ◽  
pp. 5790
Author(s):  
Salwa Saafi ◽  
Jiri Hosek ◽  
Aneta Kolackova

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.


Sensors ◽  
2018 ◽  
Vol 18 (5) ◽  
pp. 1473 ◽  
Author(s):  
Zeeshan Kaleem ◽  
Muhammad Khaliq ◽  
Ajmal Khan ◽  
Ishtiaq Ahmad ◽  
Trung Duong

Author(s):  
Elias Yaacoub ◽  
Nizar Zorba ◽  
Zaher Dawy

In this chapter, Long Term Evolution (LTE) for public safety is investigated. Particularly, Distributed Antenna Systems (DAS) are studied, and their impact on LTE public safety networks is analyzed. Furthermore, resource allocation algorithms for the purpose of real-time video transmission, in both the Uplink (UL) and Downlink (DL) directions, are proposed, and a proportional fair scheduling algorithm, applicable in both the UL and DL directions, is presented. The proposed algorithms are compared in several scenarios with and without distributed antenna systems. In addition, Quality of Experience (QoE) metrics are used to measure the quality of the video transmissions, and joint uplink/downlink quality metrics, tailored to video transmission over public safety networks, are presented. Simulation results show large enhancements in video quality due to the application of DAS with smart resource allocation in LTE public safety networks.


2019 ◽  
Vol 2019 ◽  
pp. 1-17
Author(s):  
Aizaz U. Chaudhry ◽  
Roshdy H. M. Hafez

This paper presents a concise overview of current public safety communication networks known as LMR (Land Mobile Radio) and emerging LTE- (Long-Term Evolution-) based broadband public safety networks to be deployed in the 700 MHz band. A broadband nationwide network for public safety based on LTE is inevitable where shared or dedicated types of LTE-based public safety networks are possible. Current LTE services do not meet mission-critical requirements and several enhancements have been defined by 3GPP to address this in Releases 12 and 13. First responders are familiar with LMR and consider it to be a reliable technology with massive deployment everywhere. Therefore, it is expected that LMR will continue to exist alongside any new LTE-based broadband public safety network. Recent LTE releases (particularly Release 15) addressed the LMR-LTE interoperability issue and described comprehensive interworking facilities. New and upcoming features and services of LTE in Releases 14 and 15, such as mission-critical data, mission-critical video, and aerial user equipments, are also directly applicable to public safety. The paper endeavours to provide a quick yet meaningful review of all these issues. It also offers a look ahead at the new and rapidly advancing virtualization technologies, such as software-defined radio access network, and radio access network slicing, as enablers for future public safety networks.


2016 ◽  
Vol 54 (3) ◽  
pp. 30-36 ◽  
Author(s):  
Munawwar M. Sohul ◽  
Miao Yao ◽  
Xiaofu Ma ◽  
Eyosias Y. Imana ◽  
Vuk Marojevic ◽  
...  

2021 ◽  
Vol 2 (2) ◽  
pp. 61-80
Author(s):  
Nina Santi ◽  
Nathalie Mitton

Multiaccess Edge Computing (MEC) brings additional computing power in proximity of mobile users, reducing latency, saving energy and alleviating the network's bandwidth. This proximity is beneficial, especially for mission-critical applications where each second matters, such as disaster management or military operations. Moreover, it enables MEC resources embedded on mobile units like drones or robots that are flexible to be deployed for mission-critical applications. However, the MEC servers are capacity-limited and thus need an acute management of their resources. The mobile resources also need a smart deployment scheme to deliver their services efficiently. In this survey, we review mission-critical applications, resource allocation and deployment of mobile resources techniques in the context of the MEC. First, we introduce the technical specifics and uses of MEC in mission-critical applications to highlight their needs and requirements. Then, we discuss the resource allocation schemes for MEC and assess their fit depending on the application needs. In the same fashion, we finally review the deployment of MEC mobile resources. We believe this work could serve as a helping hand to design efficient MEC resource management schemes that respond to challenging environments such as mission-critical applications.


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