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Age of Information: Concept, Metric and Tool for Network Control
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The concept of information freshness has developed over the last few years into an active and rapidly growing area of research. It has become known as the Age of Information (AoI). After its initial formal introduction, it became clear that it was very relevant (if not crucial) for numerous applications, ranging from autonomous vehicle systems, the Internet of Things, real-time computing to database access, caching, and wireless communications. More importantly, the combination of the transmission delay and sampling rate that are involved in the formulation of the AoI concept has made it clear that there are far-reaching consequences in the relationship between signal processing, information theory, and control theory at a fundamental level. In this Special Issue, we received contributions that span the full range of applications and theoretical foundations of the AoI concept, which, in fact, is also a performance metric and an analysis tool. Of special interest is the role of AoI in bridging different disciplines and the use of AoI in the analysis and optimization involved in important applications.
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Keywords
- age of incorrect information
- age of information
- channel quality
- cognitive radio network
- communication control co-design
- constrained Markov decision process
- context-awareness
- convex optimization
- cyber–physical system
- discrete time status updating system
- discrete-time Markov chain
- Dynamic programming
- Economics, finance, business & management
- Energy harvesting
- Energy industries & utilities
- gossip networks
- History of engineering & technology
- Industry & industrial studies
- information freshness
- information update
- lyapunov optimization
- Markovian infection spread model
- multi-user system
- multiple access channels
- multiple-input multiple-output Rayleigh fading channel
- noisy Ornstein–Uhlenbeck process
- parallel servers
- probabilistic preemption
- probability generation function
- query age of information
- real-time state update
- reinforcement learning
- reliable backup energy
- Remote control
- resource constraints
- RF energy-harvesting
- Scheduling
- scheduling policy
- software-defined radio
- stationary distribution
- status update
- status update system
- stochastic hybrid systems
- Technology, engineering, agriculture
- Technology: general issues
- timely infection tracking
- timely status updates
- timely tracking of multiple processes
- urgency of information
- utility maximization
- value of information
- wireless networked control system
- wireless networks
- wireless powered communication networks
Links
DOI: 10.3390/books978-3-0365-7293-2Editions