Trust Management and Bad Data Reduction in Internet of Vehicles Using Blockchain and AI

Blockchain offers cryptographically secure storage for recording transactions. However, one issue with blockchains is the problem of bad data and data reliability, where bad data refers to inaccurate, incomplete, or irrelevant data. This paper investigates how machine learning (ML) can be used to identify inaccurate sensor data added to a blockchain in Internet of Vehicles (IoV) applications. A solution for reducing the inclusion of incorrect data using a reputation-based method is proposed. We suggest that if an accurate ML model can be built for a task that can be completed using the input sensor data, it is possible to use the same model to assess the accuracy of new input data samples for which the actual task outcome is known. A road surface-type classification task is performed using Convolutional Neural Network models on the Passive Vehicular Sensors Datasets, and a pre-trained model is used in a novel solution approach involving edge servers and validators on a blockchain network. Our research shows that ML can be used to identify bad data on the blockchain and to reduce the addition of unreliable data to the blockchain in an IoV context. The proposed solution is generalizable and can be applied to any scenario where an accurate ML model can be devised for a task that can be accomplished using some blockchain input data

Highly efficient key agreement for remote patient monitoring in MEC-enabled 5G networks

Remote patient monitoring is one of the cornerstones to enable Ambient Assisted Living. Here, a set of devices provide their corresponding input, which should be carefully aggregated and analysed to derive health-related conclusions. In the new Fifth-Generation (5G) networks, Internet of Things (IoT) devices communicate directly to the mobile network without any need of proxy devices. Moreover, 5G networks consist of Multi-access Edge Computing (MEC) nodes, which are taking the role of a mini-cloud, able to provide sufficient computation and storage capacity at the edge of the network. MEC IoT integration in 5G offers a lot of benefits such as high availability, high scalability, low backhaul bandwidth costs, low latency, local awareness and additional security and privacy. In this paper, we first detail the procedure on how to establish such remote monitoring in 5G networks. Next, we focus on the key agreement between IoT, MEC and registration center in order to guarantee mutual authentication, anonymity, and unlinkability properties. Taking into account the high heterogeneity of IoT devices that can contribute to an accurate image of the health status of a patient, it is of utmost importance to design a very lightweight scheme that allows even the smallest devices to participate. The proposed protocol is symmetric key based and thus highly efficient. Moreover, it is shown that the required security features are established and protection against the most of the well-known attacks is guaranteed.European Commission Horizon 2020Academy of Finland in 6Genesis Flagship and 5GEAREuropean Union in RESPONSE 5

Realizing Internet of Things with Network Slicing: Opportunities and Challenges

ELECTR NETWORKInternet of Things (IoT) is a lucrative technology within the modern community that realizes the concept of the smart world, by expanding within a myriad of applications. Existing wireless networks require a radical change to fulfill the network requirements and cater the rapid expansion of the IoT ecosystem. 5G architecture is specifically designed to facilitate this demand. Network slicing is a pivotal technology in 5G architecture that has the ability to divide the physical network into multiple logical networks with specific network characteristics. In this paper, we are going to analyze how network slicing can be helpful in the IoT realization. Technical aspects that are required in the IoT realization, and the slicing based solutions which address these aspects, will be discussed here. Moreover, technical challenges that can arise due to network slicing integration in IoT ecosystem, will also be discussed with the potential solutions.European Commission Horizon 2020European Union in RESPONSE 5GAcademy of Finland in 6Genesi

A Survey on Security and Privacy of 5G Technologies: Potential Solutions, Recent Advancements, and Future Directions

Security has become the primary concern in many telecommunications industries today as risks can have high consequences. Especially, as the core and enable technologies will be associated with 5G network, the confidential information will move at all layers in future wireless systems. Several incidents revealed that the hazard encountered by an infected wireless network, not only affects the security and privacy concerns, but also impedes the complex dynamics of the communications ecosystem. Consequently, the complexity and strength of security attacks have increased in the recent past making the detection or prevention of sabotage a global challenge. From the security and privacy perspectives, this paper presents a comprehensive detail on the core and enabling technologies, which are used to build the 5G security model; network softwarization security, PHY (Physical) layer security and 5G privacy concerns, among others. Additionally, the paper includes discussion on security monitoring and management of 5G networks. This paper also evaluates the related security measures and standards of core 5G technologies by resorting to different standardization bodies and provide a brief overview of 5G standardization security forces. Furthermore, the key projects of international significance, in line with the security concerns of 5G and beyond are also presented. Finally, a future directions and open challenges section has included to encourage future research.European CommissionNational Research Tomsk Polytechnic UniversityUpdate citation details during checkdate report - A

Can Blockchain Strengthen the Energy Internet?

Emergence of the Energy Internet (EI) demands restructuring of traditional electricity grids to integrate heterogeneous energy sources, distribution network management with grid intelligence and big data management. This paradigm shift is considered to be a breakthrough in the energy industry towards facilitating autonomous and decentralized grid operations while maximizing the utilization of Distributed Generation (DG). Blockchain has been identified as a disruptive technology enabler for the realization of EI to facilitate reliable, self-operated energy delivery. In this paper, we highlight six key directions towards utilizing blockchain capabilities to realize the envisaged EI. We elaborate the challenges in each direction and highlight the role of blockchain in addressing them. Furthermore, we summarize the future research directive in achieving fully autonomous and decentralized electricity distribution networks, which will be known as Energy InternetUniversity College DublinUniversity Grants Commission, Sri Lank

Survey on 6G Frontiers: Trends, Applications, Requirements, Technologies and Future Research

Emerging applications such as Internet of Everything, Holographic Telepresence, collaborative robots, and space and deep-sea tourism are already highlighting the limitations of existing fifth-generation (5G) mobile networks. These limitations are in terms of data-rate, latency, reliability, availability, processing, connection density and global coverage, spanning over ground, underwater and space. The sixth-generation (6G) of mobile networks are expected to burgeon in the coming decade to address these limitations. The development of 6G vision, applications, technologies and standards has already become a popular research theme in academia and the industry. In this paper, we provide a comprehensive survey of the current developments towards 6G. We highlight the societal and technological trends that initiate the drive towards 6G. Emerging applications to realize the demands raised by 6G driving trends are discussed subsequently. We also elaborate the requirements that are necessary to realize the 6G applications. Then we present the key enabling technologies in detail. We also outline current research projects and activities including standardization efforts towards the development of 6G. Finally, we summarize lessons learned from state-of-the-art research and discuss technical challenges that would shed a new light on future research directions towards 6G