Edge sensing supported by wireless transmission is one of the core enabling technologies for flexibly implementing the Industrial internet of Things (IIoT). Balancing network resource consumption and sensing accuracy ...
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ISBN:
(纸本)9798350310900
Edge sensing supported by wireless transmission is one of the core enabling technologies for flexibly implementing the Industrial internet of Things (IIoT). Balancing network resource consumption and sensing accuracy under dynamic network conditions is a critical challenge. In this work, we bridge the gap between edge sensing performance and transmission design through observability analysis and learning-based methods. Particularly, utilizing observability probability as the key metric, we design the network resource reservation for specific sensing performance demands including stability based on our derived upper and lower probability bounds. Then, to further reduce the overall cost of edge sensing and transmission, an intelligent transmission scheduling method (ITSM) based on deep reinforcement learning is provided, which dynamically schedules the number of transmissions for each sensor. In ITSM, the action space is determined according to the amount of our reserved resources, and both the states of sensing error and fading channel are taken into account. Finally, the superiority of our proposed methods is fully demonstrated through numerical simulations in a typical IIoT system of industrial hot rolling.
The rapid increase in the deployment of internet-of-Things (IoT) devices necessitates robust intrusion detection systems. This study evaluates the effectiveness of machine learning models, including Decision Tree, Ran...
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In recent years, whether we are talking about industrial implementations or whether we are talking about products offered to the masses, there is an accelerated trend of the appearance of IoT devices, devices that col...
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ISBN:
(纸本)9798350362442;9798350362435
In recent years, whether we are talking about industrial implementations or whether we are talking about products offered to the masses, there is an accelerated trend of the appearance of IoT devices, devices that collect information and, depending on their specifics, can make certain decisions in the process. This increase automatically leads to the generation of more generated data that must be sent for processing, analyzed, stored, a certain decision being made based on the result of the analysis. This process can be long, the duration strictly determined by the volume of data and the performance of the Cloud infrastructure. Fog and Edge computing has come to our aid with an innovative solution, acting as an additional layer between IoT and Cloud devices. This layer aims to reduce the response time by analyzing the data at the edge of the network, in this way it is no longer necessary to send all the information directly to the Cloud. Whether we are talking about smart cities, the health field or the industrial fields, the presence of IoT devices shows the usefulness of the need to implement Fog and Edge systems. Starting from this growth in the IoT field, the authors wish through this article to analyze the existing implementations that use Fog and Edge computing, the existing architectural levels, the analysis of the areas that present vulnerabilities, as well as the possible improvements that can be added to make the processes more efficient.
As humanity evolves, space exploration is inevitable. There are several limitations for space exploration, notably space debris has also caused the growth of a new challenge for space exploration efforts. Functional s...
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Sensory data profoundly influences the quality of detected events in a distributed complex event processing system (DCEP). Since each sensor's status is unstable at runtime, a single sensing assignment is often in...
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The rapid growth of internet of Things (IoT) devices has increased the demand for reliable communication networks, particularly within low earth orbit (LEO) satellite mega-constellations. These networks face significa...
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This work presents a new controller for gridconnected PV/Battery systems that combines a bidirectional battery controller with a voltage source converter (VSC) to solve problems caused by power fluctuations on the DC-...
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network slicing has been envisioned to play a crucial role in supporting various vehicular applications with diverse performance requirements in dynamic Vehicle-to-Everything (V2X) communications systems. However, tim...
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network slicing has been envisioned to play a crucial role in supporting various vehicular applications with diverse performance requirements in dynamic Vehicle-to-Everything (V2X) communications systems. However, time-varying Service Level Agreements (SLAs) of slices and fast-changing network topologies in V2X scenarios may introduce new challenges for enabling efficient inter-slice resource provisioning to guarantee the quality of Service (QoS) while avoiding both resource over-provisioning and under-provisioning. Moreover, the conventional centralized resource allocation schemes requiring global slice information may degrade the data privacy provided by dedicated resource provisioning. To address these challenges, in this paper, we propose a two-timescale resource management mechanism for providing diverse V2X slices with customized resources. In the long timescale, we propose a Proximal Policy Optimization-based multi-agent deep reinforcement learning algorithm for dynamically allocating bandwidth resources to different slices for guaranteeing their SLAs. Under the coordination of agents, each agent only observes its partial state space rather than the global information to adjust the resource requests, which can enhance the privacy protection. Moreover, an expert demonstration mechanism is proposed to guide the action policy for reducing the invalid action exploration and accelerating the convergence of agents. In the short-term time slot, with our proposed Cross Entropy and Successive Convex Approximation algorithm, each slice allocates its available physical resource blocks and optimizes its transmit power to meet the QoS. Simulation results show our proposed two-timescale resource allocation scheme for network slicing can achieve maximum 8.4% performance gains in terms of spectral efficiency while guaranteeing the QoS requirements of users compared to the baseline approaches.
To enhance the quality of service for field users in industrial control applications, a suitable caching strategy at edge servers is essential. This paper proposes a cache replacement strategy based on deep reinforcem...
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ISBN:
(纸本)9798350334722
To enhance the quality of service for field users in industrial control applications, a suitable caching strategy at edge servers is essential. This paper proposes a cache replacement strategy based on deep reinforcement learning. Status space, action space and reward function are defined considering the varying real-time requirements of the application files. The performance of the proposed algorithm is compared with baseline algorithms using user requests with dynamic popularities. The experimental results demonstrate that the proposed algorithm can effectively enhance the hit rate of control files while maintaining the overall cache hit rate, without sacrificing performance.
The automation of daily tasks via the internet of Things (IoT) has drastically changed people's lives in the last few years. By connecting different physical devices with various functionalities, this is accomplis...
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