155 research outputs found
Integration of Blockchain and Auction Models: A Survey, Some Applications, and Challenges
In recent years, blockchain has gained widespread attention as an emerging
technology for decentralization, transparency, and immutability in advancing
online activities over public networks. As an essential market process,
auctions have been well studied and applied in many business fields due to
their efficiency and contributions to fair trade. Complementary features
between blockchain and auction models trigger a great potential for research
and innovation. On the one hand, the decentralized nature of blockchain can
provide a trustworthy, secure, and cost-effective mechanism to manage the
auction process; on the other hand, auction models can be utilized to design
incentive and consensus protocols in blockchain architectures. These
opportunities have attracted enormous research and innovation activities in
both academia and industry; however, there is a lack of an in-depth review of
existing solutions and achievements. In this paper, we conduct a comprehensive
state-of-the-art survey of these two research topics. We review the existing
solutions for integrating blockchain and auction models, with some
application-oriented taxonomies generated. Additionally, we highlight some open
research challenges and future directions towards integrated blockchain-auction
models
Incentive Mechanisms for Participatory Sensing: Survey and Research Challenges
Participatory sensing is a powerful paradigm which takes advantage of
smartphones to collect and analyze data beyond the scale of what was previously
possible. Given that participatory sensing systems rely completely on the
users' willingness to submit up-to-date and accurate information, it is
paramount to effectively incentivize users' active and reliable participation.
In this paper, we survey existing literature on incentive mechanisms for
participatory sensing systems. In particular, we present a taxonomy of existing
incentive mechanisms for participatory sensing systems, which are subsequently
discussed in depth by comparing and contrasting different approaches. Finally,
we discuss an agenda of open research challenges in incentivizing users in
participatory sensing.Comment: Updated version, 4/25/201
Transforming Energy Networks via Peer to Peer Energy Trading: Potential of Game Theoretic Approaches
Peer-to-peer (P2P) energy trading has emerged as a next-generation energy
management mechanism for the smart grid that enables each prosumer of the
network to participate in energy trading with one another and the grid. This
poses a significant challenge in terms of modeling the decision-making process
of each participant with conflicting interest and motivating prosumers to
participate in energy trading and to cooperate, if necessary, for achieving
different energy management goals. Therefore, such decision-making process
needs to be built on solid mathematical and signal processing tools that can
ensure an efficient operation of the smart grid. This paper provides an
overview of the use of game theoretic approaches for P2P energy trading as a
feasible and effective means of energy management. As such, we discuss various
games and auction theoretic approaches by following a systematic classification
to provide information on the importance of game theory for smart energy
research. Then, the paper focuses on the P2P energy trading describing its key
features and giving an introduction to an existing P2P testbed. Further, the
paper zooms into the detail of some specific game and auction theoretic models
that have recently been used in P2P energy trading and discusses some important
finding of these schemes.Comment: 38 pages, single column, double spac
Development of an ECDLP based Traceable Blind Signature Scheme and its Application to E-Auction.
With the increase in internet users, E-Commerce has been grown exponentially in recent years. E-Auction is one among them. But its security and robustness is still a challenge. The electronic auction centers remain to be insecure and anonymity, bid privacy and other requirements are under the threat by malicious hackers. Any auction protocol must not leak the anonymity and bid privacy of an honest bidder. Keeping these requirements in mind, we have proposed a new electronic auction scheme using blind signature. Moreover our scheme is based upon elliptic curve cryptography which provides similar level of security with comparatively smaller key size. Due to the smaller key size, the space requirement can be reduced which further allows our E-Auction scheme to implement in a mobile application which has a constrained environment like low bandwidth, memory and computational power. Blind signature is a special kind of digital signature where the message privacy can be retained by blinding the message and getting a signature on that. It can be universally verifiable and signer can’t repudiate of signing the document. Moreover it also satisfies the integrity and authenticity of the message. Due to these features of a blind signature, it can easily be applied on an E-Auction scheme. So we have proposed an efficient blind signature protocol according to the requirements of E-Auction which is based upon the hard problem of solving elliptic curve discrete logarithm problem(ECDLP). Then we have successfully applied it in our E-Auction scheme. In this thesis, we developed an Elliptic Curve Discrete Logarithm Problem (ECDLP) based blind signature scheme which can be implemented on our E-Auction protocol. Both the schemes are proved to be resistant to active attacks and satisfies the requirements which are necessary for online auction
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