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Age of Information (AoI) measures the freshness of data in mission critical Internet-of-Things (IoT) applications i.e., industrial internet, intelligent transportation systems etc. In this paper, a new system model is proposed to estimate…

Networking and Internet Architecture · Computer Science 2021-06-01 Chathuranga M. Wijerathna Basnayaka , Dushantha Nalin K. Jayakody , Tharindu D. Ponnimbaduge Perera , Moises Vidal Ribeiro

The technological landscape is rapidly evolving toward large-scale systems. Networks supporting massive connectivity through numerous Internet of Things (IoT) devices are at the forefront of this advancement. In this paper, we examine…

Information Theory · Computer Science 2024-12-06 Yao Zhu , Xiaopeng Yuan , Yulin Hu , Bo Ai , Ruikang Wang , Bin Han , Anke Schmeink

Age of information (AoI) is a recently proposed metric for measuring information freshness. AoI measures the time that elapsed since the last received update was generated. We consider the problem of minimizing average and peak AoI in a…

Information Theory · Computer Science 2019-12-10 Rajat Talak , Sertac Karaman , Eytan Modiano

Age of Information (AoI), namely the time that has elapsed since the most recently delivered packet was generated, is receiving increasing attention with the emergence of many real-time applications that rely on the exchange of…

Information Theory · Computer Science 2024-05-08 Xinlu Dai , Cyril Leung

In this letter, a reconfigurable intelligent surface (RIS)-assisted simultaneous wireless information and power transfer (SWIPT) network is investigated. To quantify the freshness of the data packets at the information receiver, the age of…

Signal Processing · Electrical Eng. & Systems 2022-10-05 Wanting Lyu , Yue Xiu , Jun Zhao , Zhongpei Zhang

In this paper, we consider a point-to-point wireless communication system. The source monitors a physical process and generates status update packets according to a Poisson process. The packets are transmitted to the destination by using…

Signal Processing · Electrical Eng. & Systems 2019-08-20 Rui Wang , Yifan Gu , He Chen , Yonghui Li , Branka Vucetic

Age of information (AoI), a metric to analyse data freshness, is of interest for time-critical applications in upcoming wireless networks. Besides, wireless power transfer (WPT) is also essential to prolong lifetime of a wireless sensor…

Information Theory · Computer Science 2020-07-15 Yasaman Khorsandmanesh , Mohammad Javad Emadi , Ioannis Krikidis

In this letter, we deal with the age of information (AoI) for a sensor network with wireless power transfer (WPT) capabilities. Specifically, we study a simple network topology, where a sensor node harvests energy from radio frequency…

Signal Processing · Electrical Eng. & Systems 2018-12-19 Ioannis Krikidis

Age of information (AoI) has been proposed as a more suitable metric for characterizing the freshness of information than traditional metrics like delay and throughput. However, the calculation of AoI requires complex analysis and strict…

Information Theory · Computer Science 2023-03-07 Licheng Chen , Yunquan Dong

Joint design of control and communication in Wireless Networked Control Systems (WNCS) is a promising approach for future wireless industrial applications. In this context, Age of Information (AoI) has been increasingly utilized as a metric…

Systems and Control · Electrical Eng. & Systems 2021-06-02 Pedro M. de Sant Ana , Nikolaj Marchenko , Petar Popovski , Beatriz Soret

We investigate the age-of-information (AoI) in the context of random access networks, in which transmitters need to send a sequence of information packets to intended receivers over shared spectrum. We establish an analytical framework that…

Information Theory · Computer Science 2020-09-22 Howard H. Yang , Ahmed Arafa , Tony Q. S. Quek , H. Vincent Poor

Age of information (AoI) is an effective measure to quantify the information freshness in wireless status update systems. It has been further validated that the peak AoI has the potential to capture the core characteristics of the aging…

Systems and Control · Electrical Eng. & Systems 2024-06-05 Yuquan Xiao , Qinghe Du , George K. Karagiannidis

Timely sampling and fresh information delivery are important in 6G communications. This is achieved by encoding samples into short packets/codewords for transmission, with potential decoding errors. We consider a broadcasting base station…

Information Theory · Computer Science 2023-09-13 Sumanth S Raikar , Rajshekhar V Bhat

In this article, we provide an accessible introduction to the emerging idea of Age of Information (AoI) that quantifies freshness of information and explore its possible role in the efficient design of freshness-aware Internet of Things…

Information Theory · Computer Science 2019-12-10 Mohamed A. Abd-Elmagid , Nikolaos Pappas , Harpreet S. Dhillon

Age of Information (AoI) is a recently defined quantity, which measures the freshness of information in a communication scheme. In this paper, we analyze a network that consists of a sensor node, an energy source and a receiver. The energy…

Information Theory · Computer Science 2024-10-30 Navid Nouri , Darya Ardan , Mahmood Mohassel Feghhi

In this paper, we investigate a model relevant to semantics-aware goal-oriented communications, and we propose a new metric that incorporates the utilization of information in addition to its timelines. Specifically, we consider the…

Information Theory · Computer Science 2023-12-22 Ali Nikkhah , Anthony Ephremides , Nikolaos Pappas

Age of Information (AoI) measures the freshness of the information at a remote location. AoI reflects the time that is elapsed since the generation of the packet by a transmitter. In this paper, we consider a remote monitoring problem…

Networking and Internet Architecture · Computer Science 2019-05-14 Anis Elgabli , Hamza Khan , Mounssif Krouka , Mehdi Bennis

Timely message delivery is a key enabler for Internet of Things (IoT) and cyber-physical systems to support wide range of context-dependent applications. Conventional time-related metrics, such as delay, fails to characterize the timeliness…

Information Theory · Computer Science 2020-01-31 Mustafa Emara , Hesham ElSawy , Gerhard Bauch

The Age of Information (AoI) is an end-to-end metric frequently used to understand how "fresh" the information about a remote system is. In this paper, we present an experimental study of the relationship between AoI and the energy spent by…

Networking and Internet Architecture · Computer Science 2024-05-10 Federico Cristofani , Valerio Luconi , Alessio Vecchio

Beyond fifth generation wireless communication networks (B5G) are applied in many use-cases, such as industrial control systems, smart public transport, and power grids. Those applications require innovative techniques for timely…

Information Theory · Computer Science 2024-10-28 Robert-Jeron Reifert , Stefan Roth , Aydin Sezgin
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