270 research outputs found

    Assesment of Blockchain-Based P2P (Pear to Pear) Transactions in International Trade with Swot Analysis

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    Blockchain is known as a digitalized, decentralized online computer network on which a public ledger of all cryptocurrency transactions stored and it attempts to create and share all transactions that are verified by using a peer-to-peer (P2P) connected computer network. From the point of production to the truncating the international trade finance process or recording the customs procedures control, many companies are taking the advantages of blockchain technology day by day. The development of peer-to-peer payment systems make the crypto-currencies capable of dealing with not only the individual money transfers but also with the international trade activities. Expected result of this development is an increase the international trade volume in the short run. There are both threats and opportunities in terms of blockchain-based peer-to-peer commercial transactions. And also, some strengths and weaknesses due to the internal structure of the blockchain system. In this study, we are analyzing online peer-to-peer commercial activities via SWOT analysis from the perspective of institutions. It is expected that this study will enable to analyze the major factors of the peer-to-peer transactions in international trade facilities by applying "SWOT analysis". Even though there are a lot of research about blockchain in the local literature, institutional dimension in terms of the state-of-the-art cases of the adoption of blockchain in transport and logistics are studied scarcely in Turkey and hopefully will guide the academicians who want to work in this field

    Blockchain and internet of things for electrical energy decentralization: A review and system architecture

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    Decentralization in electrical power grids has gained increasing importance, especially in the last two decades, since transmission system operators (TSO), distribution system operators (DSO) and consumers are more aware of energy efficiency and energy sustainability issues. Therefore, globally, due to the introduction of energy production technologies near the consumers, in residential and industrial sectors, new scenarios of decentralized energy production (DEP) are emerging. To guarantee an adequate power management in the electrical power grids, incorporating producers, consumers, and producers-consumers, commonly designated as prosumers together, it is important to adopt intelligent systems and platforms that allow the provision of information on energy consumption and production in real time, as well as for obtaining the price for the sale and purchase of energy. In this research the literature is analysed to identify the appropriate solutions to implement a decentralized electrical power grid based on sensors, blockchain and smart contracts, evaluating the current state of the art and pilot projects already in place. A conceptual model for a power grid model is presented, with renewable energy production, combining Internet of Things (IoT), blockchain and smart contracts.A descentralização nas redes elétricas ganhou importância crescente, especialmente nas últimas duas décadas, uma vez que os operadores da rede de transporte (ORT), operadores da rede de distribuição (ORD) e consumidores estão mais conscientes das questões de eficiência energética e sustentabilidade energética. Globalmente, devido à introdução de tecnologias de produção de energia junto dos consumidores, nos setores residencial e industrial, estão a surgir novos cenários de produção de energia descentralizada. Para garantir uma adequada gestão de energia nas redes elétricas, integrando produtores, consumidores e produtores-consumidores, vulgarmente designados por prosumers, é importante adotar sistemas e plataformas inteligentes que permitam fornecer informações sobre consumo e produção de energia em tempo real, bem como para obter o preço de compra e venda de energia. Nesta pesquisa, a literatura é analisada para identificar as soluções adequadas para implementar uma rede elétrica descentralizada baseada em sensores, blockchain e contratos inteligentes, avaliando o estado da arte atual e projetos piloto já em curso. É apresentado um modelo conceptual para um modelo de rede elétrica, com produção de energia renovável, combinando Internet das Coisas (IoT), blockchain e contratos inteligentes

    SECBlock-IIoT : A Secure Blockchain-enabled Edge Computing Framework for Industrial Internet of Things

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    This work was supported by a National Research Foundation of Korea (NRF) grant funded by Korean Government (MSIT) (No. 2021R1A2C2014333).Postprin

    Peer-to-Peer Energy Trading in Smart Residential Environment with User Behavioral Modeling

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    Electric power systems are transforming from a centralized unidirectional market to a decentralized open market. With this shift, the end-users have the possibility to actively participate in local energy exchanges, with or without the involvement of the main grid. Rapidly reducing prices for Renewable Energy Technologies (RETs), supported by their ease of installation and operation, with the facilitation of Electric Vehicles (EV) and Smart Grid (SG) technologies to make bidirectional flow of energy possible, has contributed to this changing landscape in the distribution side of the traditional power grid. Trading energy among users in a decentralized fashion has been referred to as Peer- to-Peer (P2P) Energy Trading, which has attracted significant attention from the research and industry communities in recent times. However, previous research has mostly focused on engineering aspects of P2P energy trading systems, often neglecting the central role of users in such systems. P2P trading mechanisms require active participation from users to decide factors such as selling prices, storing versus trading energy, and selection of energy sources among others. The complexity of these tasks, paired with the limited cognitive and time capabilities of human users, can result sub-optimal decisions or even abandonment of such systems if performance is not satisfactory. Therefore, it is of paramount importance for P2P energy trading systems to incorporate user behavioral modeling that captures users’ individual trading behaviors, preferences, and perceived utility in a realistic and accurate manner. Often, such user behavioral models are not known a priori in real-world settings, and therefore need to be learned online as the P2P system is operating. In this thesis, we design novel algorithms for P2P energy trading. By exploiting a variety of statistical, algorithmic, machine learning, and behavioral economics tools, we propose solutions that are able to jointly optimize the system performance while taking into account and learning realistic model of user behavior. The results in this dissertation has been published in IEEE Transactions on Green Communications and Networking 2021, Proceedings of IEEE Global Communication Conference 2022, Proceedings of IEEE Conference on Pervasive Computing and Communications 2023 and ACM Transactions on Evolutionary Learning and Optimization 2023

    Multilateral Transparency for Security Markets Through DLT

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    For decades, changing technology and policy choices have worked to fragment securities markets, rendering them so dark that neither ownership nor real-time price of securities are generally visible to all parties multilaterally. The policies in the U.S. National Market System and the EU Market in Financial Instruments Directive— together with universal adoption of the indirect holding system— have pushed Western securities markets into a corner from which escape to full transparency has seemed either impossible or prohibitively expensive. Although the reader has a right to skepticism given the exaggerated promises surrounding blockchain in recent years, we demonstrate in this paper that distributed ledger technology (DLT) contains the potential to convert fragmented securities markets back to multilateral transparency. Leading markets generally lack transparency in two ways that derive from their basic structure: (1) multiple platforms on which trades in the same security are matched have separate bid/ask queues and are not consolidated in real time (fragmented pricing), and (2) highspeed transfers of securities are enabled by placing ownership of the securities in financial institutions, thus preventing transparent ownership (depository or street name ownership). The distributed nature of DLT allows multiple copies of the same pricing queue to be held simultaneously by a large number of order-matching platforms, curing the problem of fragmented pricing. This same distributed nature of DLT would allow the issuers of securities to be nodes in a DLT network, returning control over securities ownership and transfer to those issuers and thus, restoring transparent ownership through direct holding with the issuer. A serious objection to DLT is that its latency is very high—with each Bitcoin blockchain transaction taking up to ten minutes. To remedy this, we first propose a private network without cumbersome proof-of-work cryptography. Second, we introduce into our model the quickly evolving technology of “lightning networks,” which are advanced two-layer off-chain networks conducting high-speed transacting with only periodic memorialization in the permanent DLT network. Against the background of existing securities trading and settlement, this Article demonstrates that a DLT network could bring multilateral transparency and thus represent the next step in evolution for markets in their current configuration
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