Transaction Server

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Hao Wu - One of the best experts on this subject based on the ideXlab platform.

  • VTC Spring - Blockchain Combined with Smart Contract to Keep Safety Energy Trading for Autonomous Vehicles
    2019 IEEE 89th Vehicular Technology Conference (VTC2019-Spring), 2019
    Co-Authors: Ning Zhao, Hao Wu
    Abstract:

    With the development of the autonomous hybrid plug-in electric vehicles (AHEVs), majority of AHEVs are equipped with bidirectional chargers. However, during the energy trading process, the centralized schemes are exposed to many flaws like the high energy transmission loss and cannot resist the single-point failure. Therefore, it is more important to use the decentralized manner to keep the safety energy trading between AHEVs. In this paper, we propose a decentralized energy trading architecture in which AHEVs can broadcast their requirements to neighbors and negotiate with other AHEVs on the transmission parameters without a Transaction Server. The smart contract (SC) is deployed among RSUs which can be automatically executed after the negotiation process. To promote AHEVs to behave honestly on the road, we associate the trust value of AHEVs with the charging price. We use proof-of-concept to theoretically demonstrate the feasibility of the development of the SC and the security properties of the proposed scheme. The simulation results demonstrate the proposed negotiation scheme outperforms the non-negotiation scheme in the aspect of efficiency.

  • Blockchain Combined with Smart Contract to Keep Safety Energy Trading for Autonomous Vehicles
    2019 IEEE 89th Vehicular Technology Conference (VTC2019-Spring), 2019
    Co-Authors: Ning Zhao, Hao Wu
    Abstract:

    With the development of the autonomous hybrid plug-in electric vehicles (AHEVs), majority of AHEVs are equipped with bidirectional chargers. However, during the energy trading process, the centralized schemes are exposed to many flaws like the high energy transmission loss and cannot resist the single-point failure. Therefore, it is more important to use the decentralized manner to keep the safety energy trading between AHEVs. In this paper, we propose a decentralized energy trading architecture in which AHEVs can broadcast their requirements to neighbors and negotiate with other AHEVs on the transmission parameters without a Transaction Server. The smart contract (SC) is deployed among RSUs which can be automatically executed after the negotiation process. To promote AHEVs to behave honestly on the road, we associate the trust value of AHEVs with the charging price. We use proof-of-concept to theoretically demonstrate the feasibility of the development of the SC and the security properties of the proposed scheme. The simulation results demonstrate the proposed negotiation scheme outperforms the non-negotiation scheme in the aspect of efficiency.

Ning Zhao - One of the best experts on this subject based on the ideXlab platform.

  • VTC Spring - Blockchain Combined with Smart Contract to Keep Safety Energy Trading for Autonomous Vehicles
    2019 IEEE 89th Vehicular Technology Conference (VTC2019-Spring), 2019
    Co-Authors: Ning Zhao, Hao Wu
    Abstract:

    With the development of the autonomous hybrid plug-in electric vehicles (AHEVs), majority of AHEVs are equipped with bidirectional chargers. However, during the energy trading process, the centralized schemes are exposed to many flaws like the high energy transmission loss and cannot resist the single-point failure. Therefore, it is more important to use the decentralized manner to keep the safety energy trading between AHEVs. In this paper, we propose a decentralized energy trading architecture in which AHEVs can broadcast their requirements to neighbors and negotiate with other AHEVs on the transmission parameters without a Transaction Server. The smart contract (SC) is deployed among RSUs which can be automatically executed after the negotiation process. To promote AHEVs to behave honestly on the road, we associate the trust value of AHEVs with the charging price. We use proof-of-concept to theoretically demonstrate the feasibility of the development of the SC and the security properties of the proposed scheme. The simulation results demonstrate the proposed negotiation scheme outperforms the non-negotiation scheme in the aspect of efficiency.

  • Blockchain Combined with Smart Contract to Keep Safety Energy Trading for Autonomous Vehicles
    2019 IEEE 89th Vehicular Technology Conference (VTC2019-Spring), 2019
    Co-Authors: Ning Zhao, Hao Wu
    Abstract:

    With the development of the autonomous hybrid plug-in electric vehicles (AHEVs), majority of AHEVs are equipped with bidirectional chargers. However, during the energy trading process, the centralized schemes are exposed to many flaws like the high energy transmission loss and cannot resist the single-point failure. Therefore, it is more important to use the decentralized manner to keep the safety energy trading between AHEVs. In this paper, we propose a decentralized energy trading architecture in which AHEVs can broadcast their requirements to neighbors and negotiate with other AHEVs on the transmission parameters without a Transaction Server. The smart contract (SC) is deployed among RSUs which can be automatically executed after the negotiation process. To promote AHEVs to behave honestly on the road, we associate the trust value of AHEVs with the charging price. We use proof-of-concept to theoretically demonstrate the feasibility of the development of the SC and the security properties of the proposed scheme. The simulation results demonstrate the proposed negotiation scheme outperforms the non-negotiation scheme in the aspect of efficiency.

David Busuttil - One of the best experts on this subject based on the ideXlab platform.

  • EUROCON - A secure wireless point of sale system
    2011 IEEE EUROCON - International Conference on Computer as a Tool, 2011
    Co-Authors: Carl James Debono, David Busuttil
    Abstract:

    Online financial Transactions using mobile devices is a convenient solution for future payment systems. However, security on the wireless channel and the cost of an Internet connection on the mobile device limit its adoption and feasibility. This paper presents a solution that uses an Infra-red link between the mobile device and a dongle connected to a Point of Sale (POS) which in turn is connected through a network to the Transaction Server. Transactions are then carried out through the Server's communication link with the banking system. To render the system secure, a simple solution based on a cryptographic hash function is adopted to protect each packet from eavesdropping. A prototype was developed in order to test and verify the proposed solution.

  • A secure wireless point of sale system
    2011 IEEE EUROCON - International Conference on Computer as a Tool, 2011
    Co-Authors: Carl James Debono, David Busuttil
    Abstract:

    Online financial Transactions using mobile devices is a convenient solution for future payment systems. However, security on the wireless channel and the cost of an Internet connection on the mobile device limit its adoption and feasibility. This paper presents a solution that uses an Infra-red link between the mobile device and a dongle connected to a Point of Sale (POS) which in turn is connected through a network to the Transaction Server. Transactions are then carried out through the Server's communication link with the banking system. To render the system secure, a simple solution based on a cryptographic hash function is adopted to protect each packet from eavesdropping. A prototype was developed in order to test and verify the proposed solution.

K. Ghose - One of the best experts on this subject based on the ideXlab platform.

  • Improving Transaction Server Performance under Heavy Loads with Differentiated Service and Active Network Interfaces
    Fourth IEEE International Symposium on Network Computing and Applications, 2005
    Co-Authors: O. Demir, K. Ghose
    Abstract:

    Transaction based Web services that demand realtime performance guarantees, such as online auctions, stock trading and real-time database Servers generally require a higher level of security and performance compared to normal Web services. To improve Server throughput of Servers for such applications under heavy loads or under denial of service attacks, it is necessary to service requests differentially, giving preference to on-going or imminent client requests. We show how such facilities can be efficiently implemented on an active network adapter based gateway that controls accesses to a pool of backend Servers. Using an experimental prototype based around a dual-ported active NIC, we show how a differentiated service policy can be implemented on such a gateway to bound the Server response time and to improve Server throughputs under heavy loads

  • NCA - Improving Transaction Server Performance under Heavy Loads with Differentiated Service and Active Network Interfaces
    Fourth IEEE International Symposium on Network Computing and Applications, 2005
    Co-Authors: O. Demir, K. Ghose
    Abstract:

    Transaction based Web services that demand realtime performance guarantees, such as online auctions, stock trading and real-time database Servers generally require a higher level of security and performance compared to normal Web services. To improve Server throughput of Servers for such applications under heavy loads or under denial of service attacks, it is necessary to service requests differentially, giving preference to on-going or imminent client requests. We show how such facilities can be efficiently implemented on an active network adapter based gateway that controls accesses to a pool of backend Servers. Using an experimental prototype based around a dual-ported active NIC, we show how a differentiated service policy can be implemented on such a gateway to bound the Server response time and to improve Server throughputs under heavy loads

Rockford Lhotka - One of the best experts on this subject based on the ideXlab platform.

  • Professional Visual Basic 6.0 Business Objects
    1997
    Co-Authors: Rockford Lhotka
    Abstract:

    From the Publisher: What is the Subject Area?In recent years, the concept of 'business objects' has taken hold in the developer community. Basically, these are the processes that deal with some input data and mediate the appropriate business response. Whether this be a stock-withdrawal from a warehouse supply system, an invoice-sender or whatever, writing the code in such a way that it can be used by an entire organization to maintain coherent information on the business is worthwhile. Visual Basic 6 classes can be exposed as ActiveX objects. This allows the developer to use DCOM to enable objects to communicate between machines. Also, objects can be both called and scripted by Active Server Pages and controlled by Microsoft Transaction Server, so that they are accessible through a web browser. Tied to these new Server-side technologies from Microsoft, we can see that Visual Basic is a great tool to implement such a system. The book does this for a variety of client-Server designs, to show how to design and deploy business objects. What's Great About this Book? STILL the only book dedicated to Business Objects with VB, the hottest topic for developers New VB6 IIS and DHTML apps covered ADO 2 techniques exploited throughout MTS 2.0 coverage and stateless objects Illustrates deployment of Server-side Visual Basic 6 objects using DCOM Who is this Book for?This book is aimed at experienced application developers, who have developed applications in Windows using Visual Basic. It will also appeal to intermediate-level programmers because it presents components and techniques that can easily be integrated into their applications.