This paper proposes an efficient architecture of a smart public safety platform that involves public professional operators as well as citizens. The proposed system is compliant with the emerging paradigm of a smart city. Its main features are that of monitoring, forecasting and managing emergency situations, arising from environmental disasters or crimes. The proposed platform performs a smart and functional integration of heterogeneous components as a smart data gathering and analysis system, a novel professional communication system, wireless sensor networks and social networks. Each element acts not only as an information collector but has autonomous capabilities to cooperate with the others in order to increase the system efficiency and to reduce the need of human interactions. Finally, the paper highlights some open research issues that represent critical aspects and require additional investigations in order to further improve the performance of the proposed platform.City management, improving quality of offered services by reducing costs, introducing transparency and citizen participation. It has to give the citizens an appropriate, precise and clear information awareness about the correct use of the resources made available by the community and show the possibilities deriving from a direct involvement in civil life. Education, allowing the use of technology to increase access, improving the quality and experience, and reducing costs.Healthcare, allowing more accurate and rapid diagnosis and responses to emergency. Storage and communication platforms permit data to be stored and shared for diagnosis and research. Transportation, improving services, as traffic management in congested areas, and at the same time reducing costs. The goal is to reduce traffic congestion while encouraging the use of public transportation. Environment, improving the environmental conditions, limiting the sources of pollution, increasing the green areas, providing widespread health services, etc. Economy, promoting innovation, productivity, exportation, etc. Public safety, improving the capability of monitoring critical environments and forecasting disasters due to both natural causes or terrorist attacks. It uses real-time information to respond rapidly to emergencies and threats.Among these smart systems, this paper aims to identify an efficient architecture of a smart public safety platform. Indeed, with the huge increase of cities population density, public safety operators need to respond more quickly to emergency situations. It has made essential the need of effective and smart emergency management solutions. New and advanced systems and platforms have to be identified in order to guarantee the safety and well-being of citizens, properly protect services and critical infrastructures. Smart solutions for public safety involves to accomplish complex tasks related to the following:Monitoring and forecasting-adopting specific monitoring activities and analysis of results arising from the monitoring campaigns to prevent natural...
Wireless communications have received much attention during the last decades due to easy implementation, the possibility of delivering multimedia services to rural communities, and the suitability for public safety and for communicating in emergency situations. In particular, a wireless network designed for an emergency scenario must be capable of monitoring sensitive areas and must enable people to connect immediately after a disaster. This article discusses the main features of a wireless network that aims to interconnect several heterogeneous systems and provide multimedia access to groups of people to better monitor a specific area, to have a fast response in case of a disaster, and to efficiently coordinate all of the forces during the disaster management phase.
The evolution toward 5G is driven by the need of providing a wide range of services differing on needed network functionalities, performance requirements, type of devices, and going beyond the human-type communications. Such a wide variety of requirements cannot be always met through a common network setting, hence, high network flexibility and scalability are required. Network slicing allows the operation of multiple end-to-end logical networks on a common physical infrastructure: each network slice is tailored to best support a specific service. Network slicing on the radio access network (RAN) domain is challenging. In order to manage the scarce radio resources, RAN slicing requires flexibility, efficient resource sharing, and customization. Hence, dynamic resource management presents unique challenges, it has to take into account different issues that can also be in contrast with each other. This paper proposes a two-layer scheduler for an efficient and low complexity RAN slicing approach in actual systems. It is shown that simply setting some parameters it is possible to achieve different trade-offs between isolation and efficiency, allowing the management of priority and customization. The performance of the proposed method has been compared with other benchmark approaches to show good behavior and the flexibility of the proposed approach.
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