A Blockchain-based Payment and Validity Check System for Vehicle Services

Kohlbrenner, Felix; Nasirifard, Pezhman; Löbel, Christian; Jacobsen, Hans‐Arno

doi:10.1145/3366627.3368107

Cited by 11 publications

(3 citation statements)

References 2 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Residential and small commercial consumers account for about 40 percent of total electricity consumption in Germany [27], and their share will increase with the adaptation of electric vehicles [13]. They can contribute to a DR system by curtailing or shifting their demand loads to create a more reliable distribution and transmission grid [18,21].…”

Section: Related Workmentioning

confidence: 99%

“…During the execution of workloads, we monitored and recorded the real power consumption in watts and consumed energy in kWh through a connected power meter. We used stress 12 on Ubuntu to create workloads and on Windows, we made use of HeavyLoad v3.4 13 . We calculated the average power consumption drop in watts and energy consumption in kWh, as Table 4 summarizes.…”

Section: Power Control Functionality Evaluationmentioning

confidence: 99%

See 1 more Smart Citation

i13DR: A Real-Time Demand Response Infrastructure for Integrating Renewable Energy Resources

Nasirifard¹,

Jacobsen²

2022

Preprint

View full text Add to dashboard Cite

With the ongoing integration of Renewable Energy Sources (RES), the complexity of power grids is increasing. Due to the fluctuating nature of RES, ensuring the reliability of power grids can be challenging. One possible approach for addressing these challenges is Demand Response (DR) which is described as matching the demand for electrical energy according to the changes and the availability of supply. However, implementing a DR system to monitor and control a broad set of electrical appliances in real-time introduces several new complications, including ensuring the reliability and financial feasibility of the system. In this work, we address these issues by designing and implementing a distributed real-time DR infrastructure for laptops, which estimates and controls the power consumption of a network of connected laptops in response to the fast, irregular changes of RES. Furthermore, since our approach is entirely software-based, we dramatically reduce the initial costs of the demand side participants. The result of our field experiments confirms that our system successfully schedules and executes rapid and effective DR events. However, the accuracy of the estimated power consumption of all participating laptops is relatively low, directly caused by our software-based approach.

show abstract

Section: Related Workmentioning

confidence: 99%

Section: Power Control Functionality Evaluationmentioning

confidence: 99%

i13DR: A Real-Time Demand Response Infrastructure for Integrating Renewable Energy Resources

Nasirifard¹,

Jacobsen²

2022

Preprint

View full text Add to dashboard Cite

show abstract

“…However, simply eliminating the coordination may jeopardize the correctness depending on the application. For example, a payment processing application may require rejecting transactions that result in the payee's account's balance turning negative [31]. A coordination-free blockchain cannot preserve this requirement [6,29].…”

Section: Introductionmentioning

confidence: 99%

OrderlessChain: Do Permissioned Blockchains Need Total Global Order of Transactions?

Nasirifard¹,

Mayer²,

Jacobsen³

2022

Preprint

View full text Add to dashboard Cite

Existing permissioned blockchains often rely on coordinationbased consensus protocols to ensure the safe execution of applications in a Byzantine environment. Furthermore, these protocols serialize the transactions by ordering them into a total global order. The serializability preserves the correctness of the application's state stored on the blockchain. However, using coordination-based protocols to attain the global order of transactions can limit the throughput and induce high latency. In contrast, application-level correctness requirements exist that are not dependent on the order of transactions, known as invariant-confluence (I-confluence). The Iconfluent applications can execute in a coordination-free manner benefiting from the improved performance compared to the coordination-based approaches. The safety and liveness of I-confluent applications are studied in non-Byzantine environments, but the correct execution of such applications remains a challenge in Byzantine coordination-free environments. This work introduces OrderlessChain, a coordination-free permissioned blockchain for the safe and live execution of I-confluent applications in a Byzantine environment. We implemented a prototype of our system, and our evaluation results demonstrate that our coordination-free approach performs better than coordination-based blockchains.

show abstract