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This paper investigates the age of information (AoI) for a radio frequency (RF) energy harvesting (EH) enabled network, where a sensor first scavenges energy from a wireless power station and then transmits the collected status update to a…

Information Theory · Computer Science 2019-01-29 Yang Lu , Ke Xiong , Pingyi Fan , Zhangdui Zhong , Khaled Ben Letaief

Timely status updates are crucial to enabling applications in massive Internet of Things (IoT). This paper measures the data-freshness performance of a status update system with an energy harvesting transmitter, considering the randomness…

Information Theory · Computer Science 2019-06-04 Xi Zheng , Sheng Zhou , Zhiyuan Jiang , Zhisheng Niu

We consider an IoT sensing network with multiple users, multiple energy harvesting sensors, and a wireless edge node acting as a gateway between the users and sensors. The users request for updates about the value of physical processes,…

Signal Processing · Electrical Eng. & Systems 2020-04-28 Mohammad Hatami , Mojtaba Jahandideh , Markus Leinonen , Marian Codreanu

A sensor node that is sending measurement updates regarding some physical phenomenon to a destination is considered. The sensor relies on energy harvested from nature to transmit its updates, and is equipped with a finite $B$-sized battery…

Information Theory · Computer Science 2018-02-26 Ahmed Arafa , Jing Yang , Sennur Ulukus , H. Vincent Poor

A real-time status updating system is considered, in which an energy harvesting sensor is acquiring measurements regarding some physical phenomenon and sending them to a destination through an erasure channel. The setting is online, in…

Information Theory · Computer Science 2019-05-01 Ahmed Arafa , Jing Yang , Sennur Ulukus , H. Vincent Poor

We consider status updating under inexact knowledge of the battery level of an energy harvesting (EH) sensor that sends status updates about a random process to users via a cache-enabled edge node. More precisely, the control decisions are…

Systems and Control · Electrical Eng. & Systems 2022-04-13 Mohammad Hatami , Markus Leinonen , Marian Codreanu

In this paper, the minimization of time-averaged age-of-information (AoI) in an energy harvesting (EH) source-equipped remote sensing setting is considered. The EH source opportunistically samples one or multiple processes over discrete…

Information Theory · Computer Science 2021-05-07 Akanksha Jaiswal , Arpan Chattopadhyay

We study the optimal transmission and scheduling policy for a transmitter (source) communicating with two gossiping receivers aiming at tracking the source's status over time using the age of information (AoI) metric. Gossiping enables…

Information Theory · Computer Science 2026-02-13 Irtiza Hasan , Ahmed Arafa

We examine the age of information (AoI) of a status update system that incorporates energy harvesting and uses the slotted ALOHA protocol. We derive analytically the average AoI and the probability that the AoI exceeds a given threshold.…

Information Theory · Computer Science 2023-10-03 Khac-Hoang Ngo , Giuseppe Durisi , Alexandre Graell i Amat , Andrea Munari , Francisco Lázaro

The time average expected age of information (AoI) is studied for status updates sent over an error-prone channel from an energy-harvesting transmitter with a finite-capacity battery. Energy cost of sensing new status updates is taken into…

Information Theory · Computer Science 2021-07-01 Elif Tugce Ceran , Deniz Gunduz , Andras Gyorgy

In this paper, we consider an information update system where wireless sensor sends timely updates to the destination over a random blocking terahertz channel with the supply of harvested energy and reliable energy backup. The paper aims to…

Information Theory · Computer Science 2021-10-19 Lixin Wang , Fuzhou Peng , Xiang Chen , Shidong Zhou

A status updating system is considered in which data from multiple sources are sampled by an energy harvesting sensor and transmitted to a remote destination through an erasure channel. The goal is to deliver status updates of all sources…

Information Theory · Computer Science 2021-09-15 Ahmed Arafa , Jing Yang , Sennur Ulukus , H. Vincent Poor

We consider a resource-constrained IoT network, where multiple users make on-demand requests to a cache-enabled edge node to send status updates about various random processes, each monitored by an energy harvesting sensor. The edge node…

Signal Processing · Electrical Eng. & Systems 2022-03-31 Mohammad Hatami , Markus Leinonen , Zheng Chen , Nikolaos Pappas , Marian Codreanu

Caching has been regarded as a promising technique to alleviate energy consumption of sensors in Internet of Things (IoT) networks by responding to users' requests with the data packets stored in the edge caching node (ECN). For real-time…

Information Theory · Computer Science 2020-03-03 Chao Xu , Xijun Wang , Howard H. Yang , Hongguang Sun , Tony Q. S. Quek

Many real-time applications of the Internet of Things (IoT) need to deal with correlated information generated by multiple sensors. The design of efficient status update strategies that minimize the Age of Correlated Information (AoCI) is a…

Networking and Internet Architecture · Computer Science 2023-10-31 Chao Xu , Xinyan Zhang , Howard H. Yang , Xijun Wang , Nikolaos Pappas , Dusit Niyato , Tony Q. S. Quek

We study status updating under inexact knowledge about the battery levels of the energy harvesting sensors in an IoT network, where users make on-demand requests to a cache-enabled edge node to send updates about various random processes…

Systems and Control · Electrical Eng. & Systems 2023-09-21 Mohammad Hatami , Markus Leinonen , Marian Codreanu

The time average expected age of information (AoI) is studied for status updates sent from an energy-harvesting transmitter with a finite-capacity battery. The optimal scheduling policy is first studied under different feedback mechanisms…

Signal Processing · Electrical Eng. & Systems 2019-02-26 Elif Tuğçe Ceran , Deniz Gündüz , András György

This paper considers a real-time status update system in which an energy harvesting (EH)-powered transmitter node observes some physical process, and sends its sensed measurements in the form of status updates to a destination node. The…

Information Theory · Computer Science 2022-01-28 Mohamed A. Abd-Elmagid , Harpreet S. Dhillon

In Internet of Things (IoT), the freshness of status updates is crucial for mission-critical applications. In this regard, it is suggested to quantify the freshness of updates by using Age of Information (AoI) from the receiver's…

Information Theory · Computer Science 2021-10-05 Xijun Wang , Wenrui Lin , Chao Xu , Xinghua Sun , Xiang Chen

A status updating system is considered in which multiple data sources generate packets to be delivered to a destination through a shared energy harvesting sensor. Only one source's data, when available, can be transmitted by the sensor at a…

Information Theory · Computer Science 2021-09-16 Christopher Daniel , Ahmed Arafa