During the winter season in India, the AQI experiences a decrease due to the limited dispersion of APs caused by MFs. Therefore, we developed a sophisticated green predictive model GAP, which utilizes our designed green technique and a customized big dataset. This dataset is derived from weather research and tailored to forecast future AQI levels in the Indian subcontinent during winter. This dataset has been meticulously curated by amalgamating samples of APs and MFs concentrations, further adjusted to reflect the yearly activity data across various Indian states. The dataset reveals an amplified national emissions rate for $boldsymbol {PM_{2.5}}$ , $boldsymbol {NO_{2}}$ , and $boldsymbol {CO}$ pollutants, exhibiting an increase of 3.6%, 1.3%, and 2.5% in gigagrams per day. ML/DL regressors are then applied to this dataset, with the most effective ML/DL regressors being selected based on their performance. Our paper encompasses an exhaustive examination of existing literature within the realm of air pollution epidemiology. The evaluation results demonstrate that the prediction accuracy of GAP when utilizing LSTM, CNN, MLP, and RNN achieve accuracies of 98.53%, 95.9222%, 96.1555%, and 97.344% in predicting the $boldsymbol {PM_{2.5}}$ , $boldsymbol {NO_{2}}$ , and $boldsymbol {CO}$ concentrations. In contrast, RF, KNN, and SVR yield lower accuracies of 92.511%, 90.333%, and 93.566% for the same AQIs.
{"title":"Apict:Air Pollution Epidemiology Using Green AQI Prediction During Winter Seasons in India","authors":"Sweta Dey;Kalyan Chatterjee;Ramagiri Praveen Kumar;Anjan Bandyopadhyay;Sujata Swain;Neeraj Kumar","doi":"10.1109/TSUSC.2023.3343922","DOIUrl":"https://doi.org/10.1109/TSUSC.2023.3343922","url":null,"abstract":"During the winter season in India, the AQI experiences a decrease due to the limited dispersion of APs caused by MFs. Therefore, we developed a sophisticated green predictive model GAP, which utilizes our designed green technique and a customized big dataset. This dataset is derived from weather research and tailored to forecast future AQI levels in the Indian subcontinent during winter. This dataset has been meticulously curated by amalgamating samples of APs and MFs concentrations, further adjusted to reflect the yearly activity data across various Indian states. The dataset reveals an amplified national emissions rate for \u0000<inline-formula><tex-math>$boldsymbol {PM_{2.5}}$</tex-math></inline-formula>\u0000, \u0000<inline-formula><tex-math>$boldsymbol {NO_{2}}$</tex-math></inline-formula>\u0000, and \u0000<inline-formula><tex-math>$boldsymbol {CO}$</tex-math></inline-formula>\u0000 pollutants, exhibiting an increase of 3.6%, 1.3%, and 2.5% in gigagrams per day. ML/DL regressors are then applied to this dataset, with the most effective ML/DL regressors being selected based on their performance. Our paper encompasses an exhaustive examination of existing literature within the realm of air pollution epidemiology. The evaluation results demonstrate that the prediction accuracy of GAP when utilizing LSTM, CNN, MLP, and RNN achieve accuracies of 98.53%, 95.9222%, 96.1555%, and 97.344% in predicting the \u0000<inline-formula><tex-math>$boldsymbol {PM_{2.5}}$</tex-math></inline-formula>\u0000, \u0000<inline-formula><tex-math>$boldsymbol {NO_{2}}$</tex-math></inline-formula>\u0000, and \u0000<inline-formula><tex-math>$boldsymbol {CO}$</tex-math></inline-formula>\u0000 concentrations. In contrast, RF, KNN, and SVR yield lower accuracies of 92.511%, 90.333%, and 93.566% for the same AQIs.","PeriodicalId":13268,"journal":{"name":"IEEE Transactions on Sustainable Computing","volume":null,"pages":null},"PeriodicalIF":3.9,"publicationDate":"2024-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141264521","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"计算机科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2023-12-25DOI: 10.1109/TSUSC.2023.3346332
Jianpeng Lin;Weiwei Lin;Huikang Huang;Wenjun Lin;Keqin Li
Constructing energy-efficient cloud data centers (CDCs) is an essential path for the further expansion of cloud computing. As one of the core subsystems of a data center, the cooling system provides a reliable thermal environment for the safe operation of IT equipment while posing a huge energy consumption and carbon emission problem. Thus, it is evident that optimizing energy management of cooling systems with considerable energy-saving potential will be essential to realize the green and low-carbon development of CDCs. Therefore, to track the research progress of data center thermal management technologies, this review focuses on two research efforts: thermal modeling and thermal-aware energy saving methods. First, various thermal modeling approaches are reviewed for air-cooled and liquid-cooled data centers. Secondly, a comprehensive review of existing advanced thermal management approaches is conducted from three perspectives: thermal-aware IT load scheduling, cooling system control optimization, and joint optimization of the IT and cooling systems. Finally, we put forward some open issues and future research directions for thermal management that have not been completely solved. This review aims to provide reasonable suggestions to enhance cooling energy efficiency and further promote the transformation of CDCs to lower energy consumption and sustainable direction.
建设高能效的云数据中心（CDC）是云计算进一步发展的必由之路。作为数据中心的核心子系统之一，冷却系统在为 IT 设备的安全运行提供可靠热环境的同时，也带来了巨大的能耗和碳排放问题。由此可见，要实现数据中心的绿色低碳发展，优化具有巨大节能潜力的冷却系统的能源管理至关重要。因此，为跟踪数据中心热管理技术的研究进展，本综述将重点关注热建模和热感知节能方法这两项研究工作。首先，综述了风冷和液冷数据中心的各种热建模方法。其次，从热感知 IT 负载调度、冷却系统控制优化以及 IT 和冷却系统联合优化这三个角度，对现有的先进热管理方法进行了全面回顾。最后，我们提出了一些尚未完全解决的热管理开放问题和未来研究方向。本综述旨在为提高冷却能效提供合理建议，进一步推动 CDC 向低能耗和可持续方向转型。
{"title":"Thermal Modeling and Thermal-Aware Energy Saving Methods for Cloud Data Centers: A Review","authors":"Jianpeng Lin;Weiwei Lin;Huikang Huang;Wenjun Lin;Keqin Li","doi":"10.1109/TSUSC.2023.3346332","DOIUrl":"https://doi.org/10.1109/TSUSC.2023.3346332","url":null,"abstract":"Constructing energy-efficient cloud data centers (CDCs) is an essential path for the further expansion of cloud computing. As one of the core subsystems of a data center, the cooling system provides a reliable thermal environment for the safe operation of IT equipment while posing a huge energy consumption and carbon emission problem. Thus, it is evident that optimizing energy management of cooling systems with considerable energy-saving potential will be essential to realize the green and low-carbon development of CDCs. Therefore, to track the research progress of data center thermal management technologies, this review focuses on two research efforts: thermal modeling and thermal-aware energy saving methods. First, various thermal modeling approaches are reviewed for air-cooled and liquid-cooled data centers. Secondly, a comprehensive review of existing advanced thermal management approaches is conducted from three perspectives: thermal-aware IT load scheduling, cooling system control optimization, and joint optimization of the IT and cooling systems. Finally, we put forward some open issues and future research directions for thermal management that have not been completely solved. This review aims to provide reasonable suggestions to enhance cooling energy efficiency and further promote the transformation of CDCs to lower energy consumption and sustainable direction.","PeriodicalId":13268,"journal":{"name":"IEEE Transactions on Sustainable Computing","volume":null,"pages":null},"PeriodicalIF":3.9,"publicationDate":"2023-12-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141264413","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"计算机科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2023-12-12DOI: 10.1109/TSUSC.2023.3341836
Yongqi Jiang;Siguang Chen;Xiangwen Bao
In practical applications, federated learning (FL) suffers from slow convergence rate and inferior performance resulting from the statistical heterogeneity of distributed data. Personalized FL (pFL) has been proposed to overcome this problem. However, existing pFL approaches mainly focus on measuring differences between entire model dimensions across clients, ignore the layer-wise differences in convolutional neural networks (CNNs), which may lead to inaccurate personalization. Additionally, two potential threats in FL are that malicious clients may attempt to poison the entire federation by tampering with local labels, and the model information uploaded by clients makes them vulnerable to inference attacks. To tackle these issues, 1) we propose a novel pFL approach in which clients minimize local classification errors and align the local and global prototypes for data from the class that is shared with other clients. This method adopts layer-wise collaborative training to achieve more granular personalization and converts local prototypes to the frequency domain to prevent source data leakage; 2) To prevent the FL model from misclassifying certain test samples as expected by poisoners, we design a robust aggregation method to ensure that benign clients who provide trustworthy model predictions for its local data are weighted far more heavily in the aggregation process than malicious clients. Experiments show that our scheme, especially in the data heterogeneity situation, can produce robust performance and more stable convergence while preserving privacy.
{"title":"Amplitude-Aligned Personalization and Robust Aggregation for Federated Learning","authors":"Yongqi Jiang;Siguang Chen;Xiangwen Bao","doi":"10.1109/TSUSC.2023.3341836","DOIUrl":"https://doi.org/10.1109/TSUSC.2023.3341836","url":null,"abstract":"In practical applications, federated learning (FL) suffers from slow convergence rate and inferior performance resulting from the statistical heterogeneity of distributed data. Personalized FL (pFL) has been proposed to overcome this problem. However, existing pFL approaches mainly focus on measuring differences between entire model dimensions across clients, ignore the layer-wise differences in convolutional neural networks (CNNs), which may lead to inaccurate personalization. Additionally, two potential threats in FL are that malicious clients may attempt to poison the entire federation by tampering with local labels, and the model information uploaded by clients makes them vulnerable to inference attacks. To tackle these issues, 1) we propose a novel pFL approach in which clients minimize local classification errors and align the local and global prototypes for data from the class that is shared with other clients. This method adopts layer-wise collaborative training to achieve more granular personalization and converts local prototypes to the frequency domain to prevent source data leakage; 2) To prevent the FL model from misclassifying certain test samples as expected by poisoners, we design a robust aggregation method to ensure that benign clients who provide trustworthy model predictions for its local data are weighted far more heavily in the aggregation process than malicious clients. Experiments show that our scheme, especially in the data heterogeneity situation, can produce robust performance and more stable convergence while preserving privacy.","PeriodicalId":13268,"journal":{"name":"IEEE Transactions on Sustainable Computing","volume":null,"pages":null},"PeriodicalIF":3.9,"publicationDate":"2023-12-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141264311","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"计算机科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2023-12-12DOI: 10.1109/TSUSC.2023.3341440
Rui Hao;Xiaohai Dai;Weiqi Dai
Blockchain technology has gained prominence for its potential to address security and privacy challenges in Internet-of-Things (IoT) services and Cyber-Physical Systems (CPS) due to its decentralized, traceable, and immutable nature. However, the considerable energy consumption associated with blockchain, exemplified by Bitcoin, has raised sustainability concerns. This paper introduces BitFT, a consensus protocol that combines the strengths of both lottery-based and voting-based mechanisms to offer a sustainable, comprehensible, and high-performance solution. BitFT dissects the block lifecycle into three phases: dissemination, and commitment phases, which correspond to the Bitcoin framework. It leverages a multiple-round sortition algorithm, a Reliable Broadcast (Rbc) protocol, and a Quorum Certificate (QC) mechanism to facilitate efficient protocol operation. The sortition algorithm functions like a lottery algorithm, while the Rbc protocol and $QC$ mechanism are implemented based on votes. In order to maximize network utilization and enhance system throughput, we further introduce a layered architecture to BitFT, which allows for concurrent commitment of multiple blocks at the same height. We perform a comprehensive analysis to verify the correctness of BitFT and conduct various experiments to demonstrate its high performance.
{"title":"BitFT: An Understandable, Performant and Resource-Efficient Blockchain Consensus","authors":"Rui Hao;Xiaohai Dai;Weiqi Dai","doi":"10.1109/TSUSC.2023.3341440","DOIUrl":"https://doi.org/10.1109/TSUSC.2023.3341440","url":null,"abstract":"Blockchain technology has gained prominence for its potential to address security and privacy challenges in Internet-of-Things (IoT) services and Cyber-Physical Systems (CPS) due to its decentralized, traceable, and immutable nature. However, the considerable energy consumption associated with blockchain, exemplified by Bitcoin, has raised sustainability concerns. This paper introduces BitFT, a consensus protocol that combines the strengths of both lottery-based and voting-based mechanisms to offer a sustainable, comprehensible, and high-performance solution. BitFT dissects the block lifecycle into three phases: dissemination, and commitment phases, which correspond to the Bitcoin framework. It leverages a multiple-round sortition algorithm, a Reliable Broadcast (Rbc) protocol, and a Quorum Certificate (QC) mechanism to facilitate efficient protocol operation. The sortition algorithm functions like a lottery algorithm, while the \u0000<small>Rbc</small>\u0000 protocol and \u0000<inline-formula><tex-math>$QC$</tex-math></inline-formula>\u0000 mechanism are implemented based on votes. In order to maximize network utilization and enhance system throughput, we further introduce a layered architecture to BitFT, which allows for concurrent commitment of multiple blocks at the same height. We perform a comprehensive analysis to verify the correctness of BitFT and conduct various experiments to demonstrate its high performance.","PeriodicalId":13268,"journal":{"name":"IEEE Transactions on Sustainable Computing","volume":null,"pages":null},"PeriodicalIF":3.9,"publicationDate":"2023-12-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141264515","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"计算机科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2023-12-08DOI: 10.1109/TSUSC.2023.3308471
Paul D. Yoo;Zahir Tari
In an increasingly interconnected world, the sophistication of cyber-attacks is on the rise. Cybersecurity research stands as a pivotal factor in shaping the prosperity of nations. To counter threats to network infrastructure and sensitive data, a multitude of security solutions with varying degrees of efficacy have been proposed. However, these solutions have thus far insufficiently accounted for a critical dimension: sustainability. In this context, sustainability entails the continuous support of processes over time by enhancing the computational requisites, scalability, energy efficiency, and resource utilization of defence and security systems. This special issue endeavors to explore recent strides in model development, innovative methodologies, and insightful observations aimed at enhancing cybersecurity, with a particular emphasis on the sustainability of defence and security systems.
{"title":"Editorial Sustainable Defence and Security Systems","authors":"Paul D. Yoo;Zahir Tari","doi":"10.1109/TSUSC.2023.3308471","DOIUrl":"https://doi.org/10.1109/TSUSC.2023.3308471","url":null,"abstract":"In an increasingly interconnected world, the sophistication of cyber-attacks is on the rise. Cybersecurity research stands as a pivotal factor in shaping the prosperity of nations. To counter threats to network infrastructure and sensitive data, a multitude of security solutions with varying degrees of efficacy have been proposed. However, these solutions have thus far insufficiently accounted for a critical dimension: sustainability. In this context, sustainability entails the continuous support of processes over time by enhancing the computational requisites, scalability, energy efficiency, and resource utilization of defence and security systems. This special issue endeavors to explore recent strides in model development, innovative methodologies, and insightful observations aimed at enhancing cybersecurity, with a particular emphasis on the sustainability of defence and security systems.","PeriodicalId":13268,"journal":{"name":"IEEE Transactions on Sustainable Computing","volume":null,"pages":null},"PeriodicalIF":3.9,"publicationDate":"2023-12-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://ieeexplore.ieee.org/stamp/stamp.jsp?tp=&arnumber=10352168","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"138558207","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"计算机科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2023-11-29DOI: 10.1109/TSUSC.2023.3336691
Kun Cao;Jian Weng
In recent years, serverless edge computing has been widely employed in the deployments of Internet-of-things (IoT) applications. Despite considerable research efforts in this field, existing works fail to jointly consider essential factors such as energy, reliability, personalized user requirements, and stochastic application executions. This oversight results in an inefficient utilization of computation and communication resources within serverless edge computing networks, subsequently diminishing the profit of service providers and degrading the quality-of-experience (QoE) of end users. In this paper, we explore the problem of reliability-ensured personalized function scheduling (REPFS) to jointly optimize the profit of service providers and the holistic QoE of end users in sustainable serverless edge computing. A personality-driven user QoE prediction method is first designed to accurately estimate the QoE of individual end users with differentiated personality types. Afterward, a deterministic function scheduling policy is developed on the problem-specific augmented non-dominated sorting genetic algorithm II (PSA-NSGA-II). Given the inherent uncertainty of application executions, a stochastic function scheduling strategy that can be easily parallelized for modern multicore scheduler platforms is also devised to accelerate solution generation for stochastic applications. Experimental results show that our deterministic function scheduling policy achieves 15% performance enhancement compared with representative multiobjective evolutionary algorithms. Furthermore, our stochastic function scheduling strategy promotes the service profit by 78% and the holistic user QoE by 118% on average compared with the developed deterministic scheduling policy.
{"title":"REPFS: Reliability-Ensured Personalized Function Scheduling in Sustainable Serverless Edge Computing","authors":"Kun Cao;Jian Weng","doi":"10.1109/TSUSC.2023.3336691","DOIUrl":"https://doi.org/10.1109/TSUSC.2023.3336691","url":null,"abstract":"In recent years, serverless edge computing has been widely employed in the deployments of Internet-of-things (IoT) applications. Despite considerable research efforts in this field, existing works fail to jointly consider essential factors such as energy, reliability, personalized user requirements, and stochastic application executions. This oversight results in an inefficient utilization of computation and communication resources within serverless edge computing networks, subsequently diminishing the profit of service providers and degrading the quality-of-experience (QoE) of end users. In this paper, we explore the problem of reliability-ensured personalized function scheduling (REPFS) to jointly optimize the profit of service providers and the holistic QoE of end users in sustainable serverless edge computing. A personality-driven user QoE prediction method is first designed to accurately estimate the QoE of individual end users with differentiated personality types. Afterward, a deterministic function scheduling policy is developed on the problem-specific augmented non-dominated sorting genetic algorithm II (PSA-NSGA-II). Given the inherent uncertainty of application executions, a stochastic function scheduling strategy that can be easily parallelized for modern multicore scheduler platforms is also devised to accelerate solution generation for stochastic applications. Experimental results show that our deterministic function scheduling policy achieves 15% performance enhancement compared with representative multiobjective evolutionary algorithms. Furthermore, our stochastic function scheduling strategy promotes the service profit by 78% and the holistic user QoE by 118% on average compared with the developed deterministic scheduling policy.","PeriodicalId":13268,"journal":{"name":"IEEE Transactions on Sustainable Computing","volume":null,"pages":null},"PeriodicalIF":3.9,"publicationDate":"2023-11-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://ieeexplore.ieee.org/stamp/stamp.jsp?tp=&arnumber=10334010","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141264524","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"计算机科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2023-11-27DOI: 10.1109/TSUSC.2023.3336801
Stephen Clement;Kat Burdett;Nour Rteil;Astrid Wynne;Rich Kenny
As demand for digital services grows, there is need to improve efficiency and reduce the environmental impact of data centers. The largest energy consumer in any data center is the IT, followed by the systems dedicated to cooling. Aiming to improve efficiency, and driven by metrics like PUE, there is a trend towards running data centers hotter to reduce the cooling energy. There is little research investigating the effect this will have on the IT beyond failure rates. To ensure overall efficiency is improving, we must view the data center as a system of systems, taking a holistic view rather than focusing on individual sub-systems. In this paper we use industry standard benchmarks and a wind-tunnel to profile typical enterprise IT. We analyze the effect of environmental conditions on IT efficiency, showing minor increases in temperature or pressure impact the efficiency of servers. Using an idealized, simulated data center case study we show that the interaction between cooling systems, server behavior and local climate are non-trivial and increasing temperatures has potential to worsen efficiency.
随着数字服务需求的增长，需要提高数据中心的效率并减少对环境的影响。数据中心最大的能源消耗者是 IT，其次是专用于冷却的系统。为了提高效率，在 PUE 等指标的驱动下，数据中心的运行温度有升高的趋势，以减少冷却能耗。除故障率外，几乎没有研究调查这对 IT 的影响。为确保提高整体效率，我们必须将数据中心视为一个由多个系统组成的系统，从整体上而不是只关注单个子系统。在本文中，我们使用行业标准基准和风洞来剖析典型的企业 IT。我们分析了环境条件对 IT 效率的影响，表明温度或压力的微小增加都会影响服务器的效率。通过一个理想化的模拟数据中心案例研究，我们发现冷却系统、服务器行为和当地气候之间的相互作用并不复杂，温度升高有可能导致效率恶化。
{"title":"Is Hot IT a False Economy? An Analysis of Server and Data Center Energy Efficiency as Temperatures Rise","authors":"Stephen Clement;Kat Burdett;Nour Rteil;Astrid Wynne;Rich Kenny","doi":"10.1109/TSUSC.2023.3336801","DOIUrl":"https://doi.org/10.1109/TSUSC.2023.3336801","url":null,"abstract":"As demand for digital services grows, there is need to improve efficiency and reduce the environmental impact of data centers. The largest energy consumer in any data center is the IT, followed by the systems dedicated to cooling. Aiming to improve efficiency, and driven by metrics like PUE, there is a trend towards running data centers hotter to reduce the cooling energy. There is little research investigating the effect this will have on the IT beyond failure rates. To ensure overall efficiency is improving, we must view the data center as a system of systems, taking a holistic view rather than focusing on individual sub-systems. In this paper we use industry standard benchmarks and a wind-tunnel to profile typical enterprise IT. We analyze the effect of environmental conditions on IT efficiency, showing minor increases in temperature or pressure impact the efficiency of servers. Using an idealized, simulated data center case study we show that the interaction between cooling systems, server behavior and local climate are non-trivial and increasing temperatures has potential to worsen efficiency.","PeriodicalId":13268,"journal":{"name":"IEEE Transactions on Sustainable Computing","volume":null,"pages":null},"PeriodicalIF":3.9,"publicationDate":"2023-11-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141264312","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"计算机科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
In this paper, we study the performance analysis of a cooperative terrestrial-underwater visible light communication (UWVLC) system, considering energy harvesting at a decode and forward (DF) relay on the ship. The transmitter to the ship link is modelled by shadowed Rician fading channel, while the UWVLC link is characterised by mixture exponential generalized gamma (EGG) distribution. The energy constrained relay harvests energy from the received signal based on power splitting (PS) scheme, assuming a part of received power is used for energy harvesting. Energy harvesting at the relay node makes the system sustainable by reducing the carbon footprints. We derive novel closed form expressions for bit error rate (BER), outage probability and ergodic capacity for the considered system at the underwater node, considering the effects of various parameters that include bubble level, temperature and salinity.
{"title":"Performance Analysis of Hybrid RF/VLC Energy Harvested Terrestrial-Underwater System","authors":"Krati Mittal;Akash Gupta;Nikhil Sharma;Manan Jani;Parul Garg","doi":"10.1109/TSUSC.2023.3336374","DOIUrl":"https://doi.org/10.1109/TSUSC.2023.3336374","url":null,"abstract":"In this paper, we study the performance analysis of a cooperative terrestrial-underwater visible light communication (UWVLC) system, considering energy harvesting at a decode and forward (DF) relay on the ship. The transmitter to the ship link is modelled by shadowed Rician fading channel, while the UWVLC link is characterised by mixture exponential generalized gamma (EGG) distribution. The energy constrained relay harvests energy from the received signal based on power splitting (PS) scheme, assuming a part of received power is used for energy harvesting. Energy harvesting at the relay node makes the system sustainable by reducing the carbon footprints. We derive novel closed form expressions for bit error rate (BER), outage probability and ergodic capacity for the considered system at the underwater node, considering the effects of various parameters that include bubble level, temperature and salinity.","PeriodicalId":13268,"journal":{"name":"IEEE Transactions on Sustainable Computing","volume":null,"pages":null},"PeriodicalIF":3.9,"publicationDate":"2023-11-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141264335","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"计算机科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2023-11-13DOI: 10.1109/TSUSC.2023.3331179
Fan Yang;Xiaofeng Liao;Xinyu Lei;Nankun Mu;Di Zhang
Data trading is an effective way for commercial companies to obtain massive personal data to develop their data-driven businesses. However, when data owners may want to sell their data without revealing privacy, data consumers also face the dilemma of high purchase costs due to purchasing too much invalid data. Therefore, there is an urgent need for a data trading scheme that can protect personal privacy and save expenses simultaneously. In this paper, we design a priv AC y-preserving and pra C tical aggr E gate S tati S tic trading scheme (named as ACCESS). Technically, we focus on the group-level pricing strategy to make ACCESS easier to implement. The differential privacy technique is applied to protect the data owners’ privacy, and the sampling algorithm is adopted to reduce the data consumers’ costs. Specifically, to provide a maximum tolerant privacy loss guarantee for the data owners, we design a decision algorithm to detect whether a conflict occurs between the consumer-specified accuracy level and the maximum tolerable privacy loss budget. Besides, to minimize the purchase cost for the data brokers, we develop a sampling-based aggregation method consisting of two sampling algorithms (called as BUSA and BKSA, respectively). BUSA enables reducing purchase costs with no additional background knowledge. Once the data broker knows the data boundary, BKSA can significantly reduce the amount of data that needs to be purchased, thereby the purchase cost is reduced. Rigorous theoretical analysis and extensive experiments (over four real-world and public datasets) further demonstrate the practicability of ACCESS.
{"title":"Towards Privacy-Preserving and Practical Data Trading for Aggregate Statistic","authors":"Fan Yang;Xiaofeng Liao;Xinyu Lei;Nankun Mu;Di Zhang","doi":"10.1109/TSUSC.2023.3331179","DOIUrl":"10.1109/TSUSC.2023.3331179","url":null,"abstract":"Data trading is an effective way for commercial companies to obtain massive personal data to develop their data-driven businesses. However, when data owners may want to sell their data without revealing privacy, data consumers also face the dilemma of high purchase costs due to purchasing too much invalid data. Therefore, there is an urgent need for a data trading scheme that can protect personal privacy and save expenses simultaneously. In this paper, we design a priv\u0000<bold>AC</b>\u0000y-preserving and pra\u0000<bold>C</b>\u0000tical aggr\u0000<bold>E</b>\u0000gate \u0000<bold>S</b>\u0000tati\u0000<bold>S</b>\u0000tic trading scheme (named as ACCESS). Technically, we focus on the group-level pricing strategy to make ACCESS easier to implement. The differential privacy technique is applied to protect the data owners’ privacy, and the sampling algorithm is adopted to reduce the data consumers’ costs. Specifically, to provide a maximum tolerant privacy loss guarantee for the data owners, we design a decision algorithm to detect whether a conflict occurs between the consumer-specified accuracy level and the maximum tolerable privacy loss budget. Besides, to minimize the purchase cost for the data brokers, we develop a sampling-based aggregation method consisting of two sampling algorithms (called as BUSA and BKSA, respectively). BUSA enables reducing purchase costs with no additional background knowledge. Once the data broker knows the data boundary, BKSA can significantly reduce the amount of data that needs to be purchased, thereby the purchase cost is reduced. Rigorous theoretical analysis and extensive experiments (over four real-world and public datasets) further demonstrate the practicability of ACCESS.","PeriodicalId":13268,"journal":{"name":"IEEE Transactions on Sustainable Computing","volume":null,"pages":null},"PeriodicalIF":3.9,"publicationDate":"2023-11-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135610928","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"计算机科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2023-11-06DOI: 10.1109/TSUSC.2023.3330671
José Miguel Aragón-Jurado;Juan Carlos de la Torre;Patricia Ruiz;Pedro L. Galindo;Albert Y. Zomaya;Bernabé Dorronsoro
Efficient green software solutions require being aware of the characteristics of both the software and the hardware where it is executed. Separately optimizing them leads to inefficient results, and there is a need for a perfect synergy between software and hardware for optimal outcomes. We present a novel combinatorial optimization problem for the minimization of the software execution time on a specific hardware, taking into account the existing uncertainty in the system. A solution to the problem is a sequence of LLVM code transformations, and a cellular genetic algorithm is used to find it. Assuming that hardware does not change, reducing the software runtime typically leads to a greener version with lower consumption. To cope with the uncertainty, two novel approaches relying on bootstrap method to compute confident intervals of the software runtime at negligible cost are proposed and compared to three other techniques and −O3 Clang compilation flag over four hardware architectures. Results show how the proposed approach effectively copes with the uncertainty, providing more robust solutions with respect to the compared methods. The execution time of the raw program is reduced from 28.1% to up to 63.2%, outperforming −O3 flag by 13.9% to 26.3%, for the different architectures.
{"title":"Automatic Software Tailoring for Optimal Performance","authors":"José Miguel Aragón-Jurado;Juan Carlos de la Torre;Patricia Ruiz;Pedro L. Galindo;Albert Y. Zomaya;Bernabé Dorronsoro","doi":"10.1109/TSUSC.2023.3330671","DOIUrl":"10.1109/TSUSC.2023.3330671","url":null,"abstract":"Efficient green software solutions require being aware of the characteristics of both the software and the hardware where it is executed. Separately optimizing them leads to inefficient results, and there is a need for a perfect synergy between software and hardware for optimal outcomes. We present a novel combinatorial optimization problem for the minimization of the software execution time on a specific hardware, taking into account the existing uncertainty in the system. A solution to the problem is a sequence of LLVM code transformations, and a cellular genetic algorithm is used to find it. Assuming that hardware does not change, reducing the software runtime typically leads to a greener version with lower consumption. To cope with the uncertainty, two novel approaches relying on bootstrap method to compute confident intervals of the software runtime at negligible cost are proposed and compared to three other techniques and −O3 Clang compilation flag over four hardware architectures. Results show how the proposed approach effectively copes with the uncertainty, providing more robust solutions with respect to the compared methods. The execution time of the raw program is reduced from 28.1% to up to 63.2%, outperforming −O3 flag by 13.9% to 26.3%, for the different architectures.","PeriodicalId":13268,"journal":{"name":"IEEE Transactions on Sustainable Computing","volume":null,"pages":null},"PeriodicalIF":3.9,"publicationDate":"2023-11-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135501605","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"计算机科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
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