Electronic auctions(e-auctions)remove the physical limitations of traditional auctions and bring this mechanism to the general ***,most e-auction schemes involve a trusted auctioneer,which is not always credible in **...
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Electronic auctions(e-auctions)remove the physical limitations of traditional auctions and bring this mechanism to the general ***,most e-auction schemes involve a trusted auctioneer,which is not always credible in *** studies have applied cryptography tools to solve this problem by distributing trust,but they ignore the existence of *** this paper,a blockchain-based Privacy-Preserving and Collusion-Resistant scheme(PPCR)for double auctions is proposed by employing both cryptography and blockchain technology,which is the first decentralized and collusion-resistant double auction scheme that guarantees bidder anonymity and bid privacy.A two-server-based auction framework is designed to support off-chain allocation with privacy preservation and on-chain dispute resolution for collusion resistance.A Dispute Resolution agreement(DR)is provided to the auctioneer to prove that they have conducted the auction correctly and the result is fair and *** addition,a Concise Dispute Resolution protocol(CDR)is designed to handle situations where the number of accused winners is small,significantly reducing the computation cost of dispute *** experimental results confirm that PPCR can indeed achieve efficient collusion resistance and verifiability of auction results with low on-chain and off-chain computational overhead.
Millets, often referred to as "Nutri Cereals," hold significant potential for enhancing future food availability. Over the past 50 years, advancements such as the use of fertilizers, insecticides, and c...
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The Internet of Things and Quantum Computing raise concerns, as Quantum IoT defines security that exploits quantum security management in IoT. The security of IoT is a significant concern for ensuring secure communica...
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The rise of automation and IoT has led to people involving smart devices in all parts of life. It has also allowed businesses and industries to implement automated processes to streamline their tasks and increase effi...
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In the present research work, Zinc oxide (ZnO) thin film was depos-ited on the Silicondioxide(SiO2)(~ 200 nm)/Silicon substrate by using Radio Frequency (RF) sputtering at 4000C to study the effect of deposition ...
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A compact sized ingestible antenna is presented at 3.3 GHz for lower ultra-wide band (UWB) wireless capsule endoscope system, by taking the stomach part of human body model presence into consideration. The propos...
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A compact sized ingestible antenna is presented at 3.3 GHz for lower ultra-wide band (UWB) wireless capsule endoscope system, by taking the stomach part of human body model presence into consideration. The proposed novel design is based on microstrip feed model and consists of three unique strip lines at center, The tuning of strip lines length and gaps between them achieved the intended frequency band of operation. This unique design helped in reducing the size of the antenna significantly and can maintain the operational band in flexible condition which proves advantage while integrating the antenna inside the capsule. The dimension of the antenna excluding the superstrate are 5.4 mm × 7 mm × 0.36 mm. The size is compact enough to be placed in cap part of capsule to avoid overlapping and coupling losses with surrounding circuitry. Initially the ingestible antenna along with circuitry and capsule were designed and placed inside homogenous stomach box using Ansys HFSS tool for the analysis, later the capsule system is placed inside different parts of the realistic virtual human phantom model and the comparative analysis is presented using the reflection coefficient curves and specific absorption rate (SAR). The SAR analysis is carried as per the Federal communications Commission (FCC) over 1 g volume tissue, and it is 0.74 W/Kg for the proposed ingestible antenna for input power of 1 mW. The proposed antenna maintained its operational band with good impedance matching and S11 below − 10 dB making to robust and insensitive towards the variation of tissues dielectric properties in gastrointestinal tract (GI). The presented coupling strength analysis from endoscopy antenna to outside antenna proved its ability to communicate. The link budget analysis for the GI tissues proved that the margin between the actual link and the required strength is good for up to 5 m distance between the Tx and Rx antennas. Moreover, the fabricated model is measured under minced pork condit
For the differences in composition and proportions of input materials, end-point quality requirements and slagging specifications, it is difficult to construct a generalized model to guide steelmaking production. Ther...
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As video data becomes increasingly pervasive in various domains, the need for robust and efficient anomaly detection methods has grown exponentially. This comparative analysis explores and evaluates diverse methods fo...
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Complex networks are becoming more complex because of the use of many components with diverse technologies. In fact, manual configuration that makes each component interoperable has breed latent danger to system secur...
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Complex networks are becoming more complex because of the use of many components with diverse technologies. In fact, manual configuration that makes each component interoperable has breed latent danger to system security. There is still no comprehensive review of these studies and prospects for further research. According to the complexity of component configuration and difficulty of security assurance in typical complex networks, this paper systematically reviews the abstract models and formal analysis methods required for intelligent configuration of complex networks, specifically analyzes, and compares the current key technologies such as configuration semantic awareness, automatic generation of security configuration, dynamic deployment, and verification evaluation. These technologies can effectively improve the security of complex networks intelligent configuration and reduce the complexity of operation and maintenance. This paper also summarizes the mainstream construction methods of complex networks configuration and its security test environment and detection index system, which lays a theoretical foundation for the formation of the comprehensive effectiveness verification capability of configuration security. The whole lifecycle management system of configuration security process proposed in this paper provides an important technical reference for reducing the complexity of network operation and maintenance and improving network security.
Hybrid precoder design is a key technique providing better antenna gain and reduced hardware complexity in millimeter-wave(mmWave)massive multiple-input multiple-output(MIMO)*** this paper,Gaussian Mixture learned app...
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Hybrid precoder design is a key technique providing better antenna gain and reduced hardware complexity in millimeter-wave(mmWave)massive multiple-input multiple-output(MIMO)*** this paper,Gaussian Mixture learned approximate message passing(GM-LAMP)network is presented for the design of optimal hybrid precoders suitable for mmWave Massive MIMO *** hybrid precoder designs using a compressive sensing scheme such as orthogonal matching pursuit(OMP)and its derivatives results in high computational complexity when the dimensionality of the sparse signal is *** drawback can be addressed using classical iterative algorithms such as approximate message passing(AMP),which has comparatively low computational *** drawbacks of AMP algorithm are fixed shrinkage parameter and non-consideration of prior distribution of the hybrid *** this paper,the fixed shrinkage parameter problem of the AMP algorithm is addressed using learned AMP(LAMP)network,and is further enhanced as GMLAMP network using the concept of Gaussian Mixture distribution of the hybrid *** simula-tion results show that the proposed GM-LAMP network achieves optimal hybrid precoder design with enhanced achievable rates,better accuracy and low computational complexity compared to the existing algorithms.
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