Global ETD Search
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Showing 1 to 10 of 10 for “"Information freshness"”.
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Optimizing Information Freshness in Wireless Networks
Age of Information (AoI) is a performance metric that can be used to measure the freshness of information. Since its inception, it has captured the attention of the research community and is now an area of active research. By its definition, AoI measures the elapsed time period between the present …
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Information Freshness Optimization in Real-time Network Applications
… of real-time applications that require timely information updates (e.g., autonomous vehicular systems, industrial automation systems, and live streaming services). These real-time applications all have one thing in common: they desire their knowledge of the information source to be as fresh as …
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Information Freshness for Monitoring and Control over Wireless Networks
… thesis, we study the optimization of general information freshness metrics in wireless networks, with the goal of applying our theoretical results to problems in real-time monitoring and control. We make contributions in three directions. First, we consider the optimization of general cost …
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Optimizing Random Access for Information Freshness in Spatially Distributed Wireless Networks
We analyze Age of Information (AoI) in wireless networks where nodes use a spatially adaptive random access scheme to send status updates to a central base station. We show that the set of achievable AoI in this setting is convex, and design policies to minimize weighted sum, min-max, and …
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Information Freshness: How To Achieve It and Its Impact On Low- Latency Autonomous Systems
… at the monitoring station before the information gets stale to extract temporal and spatial information from it, and (iii) sensors and controllers in a smart grid need to track the most recent state of the system to tune system parameters dynamically, etc. Each of the above-mentioned …
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5G Scheduling for Distributed Control in Microgrids
… communicate their states with each other. This information exchange requires a reliable and fast communication infrastructure. Different communication techniques can be used towards this objective, but with recent technological advancements, 5G communication is proving to be a very viable …
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Intelligent management for next generation communication systems - communication systems policies for delivering fresh information
… Internet of Things (IoT) applications require information to be received and decision-making made in a timely manner. The Age-of-Information (AoI) metric has been proposed to measure and evaluate the freshness of information. Afterwards, a new metric was proposed, named Peak AoI (PA), which …
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Planning and scheduling for earth-observing small satellite constellations
… of data delivery to ground, average Age of Information (freshness) of observation data, and freshness of TT&C data. In every case, performance is found to improve when using crosslinks and downlinks versus only using downlinks. Unplanned, urgent observation data is routed effectively by the …
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Decision-centric resource-efficient semantic information management
… build a set of techniques as well as a holistic information management system that not only account for data level characteristics, but, more importantly, take advantage of the higher information semantic level features as well as the even higher level decision logic structures in achieving …
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Age of Information: Fundamentals, Distributions, and Applications
… of these applications highly depends upon the freshness of the information status at the destination node about its monitored physical process(es). Because of that, the main design objective of such real-time status update systems is to ensure timely delivery of status updates from the …