An improved DPoS consensus mechanism in blockchain based on PLTS for the smart autonomous multi-robot system

Liu, Jun; Xie, Mingyue; Chen, Shuyu; Ma, Chuang; Gong, Qianhong

doi:10.1016/j.ins.2021.06.046

Cited by 37 publications

(13 citation statements)

References 39 publications

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“…A comparison of the characteristics of the six methods with those of our proposed method is shown in Table 14. Our proposed method can overcome the weaknesses of the classical method and those of Li et al [47], Xu et al [49], and Liu et al [50]. Relative to these previous methods, our proposed method ensures to express the decision-makers' voting information by increasing the number of voting options and attributes adequately and comprehensively by increasing the number of voting options and attributes.…”

Section: Analysis and Experimental Discussionmentioning

confidence: 95%

“…According to the above analysis results, a summary of the ranking results obtained by the five methods is shown in Table 13. From Table 13, it can be seen that our proposed method derives the most suitable primary node N 3 since it considers the number of term sets [49,50] as the expression of the voting options and attribute weights [53,54]. N 3 is ranked first in the classical method [30] of sorting the results and is ranked second by Li et al [47] and Xu et al [49].…”

Section: Analysis and Experimental Discussionmentioning

confidence: 99%

“…However, there still may be a situation in which the rankings of the nodes are indistinguishable. Liu et al [50] pointed out that probabilistic linguistic term set (PLTS) that can be seen as a representation of uncertain voting information to select delegates in the DPoS consensus mechanism. However, the primary node election involves multiple factors, also called attributes, which usually have different importance weights.…”

Section: Introductionmentioning

confidence: 99%

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Primary node election based on probabilistic linguistic term set with confidence interval in the PBFT consensus mechanism for blockchain

Xie

Liu

Chen

et al. 2022

Complex Intell. Syst.

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This study proposes a primary node election method based on probabilistic linguistic term set (PLTS) for the practical Byzantine fault tolerance (PBFT) consensus mechanism to effectively enhance the efficiency of reaching consensus. Specifically, a novel concept of the probabilistic linguistic term set with a confidence interval (PLTS-CI) is presented to express the uncertain complex voting information of nodes during primary node election. Then, a novel score function based on the exponential semantic value and confidence approximation value for the PLTS-CI, called Score-ESCA, is used to solve the problems of comparing different nodes with various voting attitudes. This method helps select the node with the highest score by utilizing complex decision attitudes, making it an accurate primary node election solution. Furthermore, the feasibility of our proposed method is proved by both theoretical analysis and experimental evaluations.

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Section: Analysis and Experimental Discussionmentioning

confidence: 95%

Section: Analysis and Experimental Discussionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Primary node election based on probabilistic linguistic term set with confidence interval in the PBFT consensus mechanism for blockchain

Xie

Liu

Chen

et al. 2022

Complex Intell. Syst.

Self Cite

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“…Several applications of mobile robots with blockchain for managing both a single robot and multi robot systems including swarm robots [12] have been proposed, with the majority of studies conducted in the literature dated in 2020 and 2021. They can be classified as consensus proposals [13] [14], path planning [15], cooperative working [16], information sharing [17], collective decision making [18], robot partitioning [19], task allocation [20][21]. Ethereum is the preferred blockchain network in most these applications with the mention of tradeoffs in smart contract development.…”

Section: Hyperledger Fabric As a Decentralized Solutionmentioning

confidence: 99%

Blokzincir Destekli Mobil Robotların Sağlık Hizmetinde Uygulanması: Kullanım Örnekleri, Araştırma Zorlukları ve Gelecek Trendler

Şen

Okumuş

Kocamaz

2022

Türk Doğa Ve Fen Dergisi

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Using service robots in healthcare is gaining importance in case of emergent situations like pandemics where human labour is considered risky. Multi robot systems of mobile robots have the potential to perform simple but vital tasks in healthcare. However, centralized control with a server computer of these systems carry the risks of single point of failure and ineffective operation of robots, thus decentralized control with blockchain integration offers a better solution. We mention research challenges regarding blockchain powered multi robot systems of mobile robots from use case, blockchain technology and its integration into current computing systems used in medical centers aspects. Then we propose a method for decentralized management and task distribution in a multi robot system by using Hyperledger Fabric as a permissioned blockchain platform and give common use case scenarios. In this system, tasks are assigned to robots depending on the selection of nearest available robots to the task target. Each robot runs the smart contract containing the task assignment method, so that data traffic for the task assignment process is distributed among the network, instead of stacking up on a single line as in a centralized system. Future research issues and directions for future works are also stated as a conclusion.

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“…Commonly used decentralization consistency algorithms mainly include RAFT [ 24 , 25 , 26 , 27 , 28 ], PBFT [ 29 , 30 , 31 , 32 , 33 ], RIPPLE [ 34 , 35 , 36 , 37 , 38 ] and DPOS [ 39 , 40 , 41 , 42 , 43 ]. All of the above four algorithms have good results in ensuring data consistency.…”

Section: Introductionmentioning

confidence: 99%

A New Double-Layer Decentralized Consistency Algorithm for the Multi-Satellite Autonomous Mission Allocation Based on a Block-Chain

Cheng

Ning

Dong

2022

Sensors

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The traditional on-board centralized-distributed mission negotiation architecture has poor security and reliability. It can easily give rise to the collapse of the whole system when the master node is attacked by malicious nodes. To address this issue, the decentralized consistency algorithms commonly used in the internet world are referred to in this paper. Firstly, four typical consistency algorithms suitable for the Internet and which are named RAFT, PBFT, RIPPLE and DPOS are selected and modified for a multi-satellite autonomous mission negotiation. Additionally, based on the above modified consistency algorithms, a new double-layer decentralized consistency algorithm named DDPOS is proposed. It is well known that the above four common consistency algorithms cannot have both a low resource occupation and high security. The DDPOS algorithm can integrate the advantages of four common consistency algorithms due to its freedom of choice attribute, which can enable satellite clusters to flexibly adopt different appropriate consistency algorithms and the number of decentralized network layers. The DDPOS algorithm not only greatly improves the security and reliability of the whole satellite cluster, but also effectively reduces the computing and communication resources occupation of the satellite cluster. Without the presence of a malicious node attack, the resource occupation of the DDPOS algorithm is almost the same as that of the RAFT algorithm. However, in the case of a malicious node attack, compared with the RAFT algorithm, the total computation and total bandwidth occupation of the DDPOS algorithm have decreased by 67% and 75%, respectively. Moreover, it is surprising that although the DDPOS algorithm is more complex, its code size is only about 8% more than the RAFT algorithm. Finally, the effectiveness and feasibility of the DDPOS algorithm in the on-board practical application are analyzed and verified via simulation experiments.

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An improved DPoS consensus mechanism in blockchain based on PLTS for the smart autonomous multi-robot system

Cited by 37 publications

References 39 publications

Primary node election based on probabilistic linguistic term set with confidence interval in the PBFT consensus mechanism for blockchain

Primary node election based on probabilistic linguistic term set with confidence interval in the PBFT consensus mechanism for blockchain

Blokzincir Destekli Mobil Robotların Sağlık Hizmetinde Uygulanması: Kullanım Örnekleri, Araştırma Zorlukları ve Gelecek Trendler

A New Double-Layer Decentralized Consistency Algorithm for the Multi-Satellite Autonomous Mission Allocation Based on a Block-Chain

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