Related references
Note: Only part of the references are listed.
Article
Engineering, Electrical & Electronic
Federico Chiariotti et al.
Summary: Age of Information (AoI) is an important concept in communications, but its definition assumes that new information is always used, which may not be the case. In this study, we optimize the Age of Information at Query (QAoI) in a pull-based communication model to better suit resource-constrained scenarios, and our results show that QAoI-aware optimization can significantly reduce the average and worst-case perceived age.
IEEE TRANSACTIONS ON COMMUNICATIONS
(2022)
Article
Engineering, Electrical & Electronic
Haitao Huang et al.
Summary: This paper studies power control policies that minimize the weighted combination of age of information (AoI) and total energy consumption. It proposes a retransmission mechanism to guarantee the reliability of update packets and optimizes the age-energy tradeoff using dynamic programming and probabilistic reinforcement learning algorithms. Simulation results demonstrate the effectiveness of the proposed policies.
IEEE TRANSACTIONS ON WIRELESS COMMUNICATIONS
(2022)
Article
Green & Sustainable Science & Technology
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Summary: In this study, we propose an energy efficient smart and intelligent street lighting system based on IoT architecture. The system consists of IoT sensor-based smart electric poles with LED lamps controlled by a controller. By replacing traditional lamps with LED lamps based on human eye sensitivity, significant energy savings are achieved. The system uses a smart and intelligent decision-making module to compute the intensity level based on sensor information about traffic flow and occupancy. This module generates different width pulses using a PWM dimming system, triggering a LED power switch via a DALI controller. Sustainable power systems, including PV solar panels, battery storage systems, and smart electric power grids, are used for efficient use of sustainable energy resources. A dynamic battery charging algorithm based on MPPT is used for the battery charging system. Experimental and simulation results show that the proposed system saves a considerable amount of energy during peak and off-peak hours, not only on highways but also in residential and suburban pedestrian areas. This system can ultimately reduce energy consumption and carbon emissions. Comparative analysis with existing lighting systems based on energy consumption is conducted, and the effectiveness of the proposed dynamic battery charging algorithm is demonstrated based on the performance of the battery storage PV solar panel system.
SUSTAINABLE ENERGY TECHNOLOGIES AND ASSESSMENTS
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Article
Computer Science, Information Systems
Shan Zhang et al.
Summary: This paper investigates the content service provision in information-centric vehicular networks (ICVNs) using mobile edge caching. Two schemes, RSUC and ReA, are designed to balance the average age of information (AoI) and latency. Simulations demonstrate that these schemes can significantly reduce service latency while ensuring content freshness in heavily loaded ICVNs.
IEEE TRANSACTIONS ON MOBILE COMPUTING
(2022)
Article
Telecommunications
Kapal Dev et al.
Summary: Internet of Things (IoT) has gained attention but faces challenges such as security and energy optimization. Researchers have tried to optimize energy in IoT networks by selecting optimal Cluster Heads (CHs). This paper proposes using Harris Hawks Optimization algorithm (HHO) to optimize energy utilization in IoT networks and compares its performance to other models. The results show that the proposed HHO model outperforms other models in terms of delay, load, number of alive nodes, residual energy, and temperature.
IEEE TRANSACTIONS ON GREEN COMMUNICATIONS AND NETWORKING
(2022)
Article
Computer Science, Information Systems
Nail Akar et al.
Summary: This article focuses on the study of a discrete-time server in multisource IoT systems, analyzing the distributions of Age of Information (AoI) and Peak AoI (PAoI) under different queueing disciplines. Numerical examples are provided to validate the accuracy and effectiveness of the proposed queueing model, along with a case study on the optimal choice of Bernoulli parameters in a practical IoT system.
IEEE INTERNET OF THINGS JOURNAL
(2021)
Article
Engineering, Electrical & Electronic
Roy D. Yates et al.
Summary: This paper summarizes recent contributions in the field of age of information (AoI), focusing on the design and optimization of low-latency cyberphysical systems and applications. It discusses AoI timeliness metrics, evaluation analysis methods, and their application to a variety of systems, including energy harvesting sensors, parallel server systems, queueing networks, and wireless networks. The paper also explores the relationship between update age and MMSE methods for stochastic processes. Finally, it reviews efforts to employ age optimization in cyberphysical applications.
IEEE JOURNAL ON SELECTED AREAS IN COMMUNICATIONS
(2021)
Article
Engineering, Electrical & Electronic
Shan Zhang et al.
Summary: The proposed freshness-aware refreshing scheme balances service delay and content freshness, optimizing the refreshing window to minimize average delay while meeting AoI requirements. This scheme can reduce average delay by around 80% in heavily-loaded scenarios while maintaining AoI below one second.
IEEE TRANSACTIONS ON WIRELESS COMMUNICATIONS
(2021)
Article
Computer Science, Information Systems
Qamar Abbas et al.
Summary: This paper investigates the uplink of an Internet-of-Thing (IoT) network using a discrete time Markov chain (MC) model to study the effects of packet arrival rate, number of nodes, and queue length on Age of Information (AoI) and packet drop probability. The results indicate that AoI increases with the increase in queue length, number of nodes, and arrival rate.
IEEE WIRELESS COMMUNICATIONS LETTERS
(2021)
Article
Telecommunications
Afia Naeem et al.
Summary: Wireless Sensor Networks (WSNs) consist of multiple sensor nodes deployed ad-hocly to sense or observe physical phenomena by collecting real-time data. A hybrid approach named DARE-SEP is proposed in this study, which combines various features to improve network lifetime. Results show a 10% increase in energy efficiency compared to traditional routing protocols, enhancing network lifespan.
IEEE TRANSACTIONS ON GREEN COMMUNICATIONS AND NETWORKING
(2021)
Proceedings Paper
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IEEE INFOCOM 2020 - IEEE CONFERENCE ON COMPUTER COMMUNICATIONS WORKSHOPS (INFOCOM WKSHPS)
(2020)
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