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The freshness of information in real-time monitoring systems has received increasing attention, with Age of Information (AoI) emerging as a novel metric for measuring information freshness. In many applications, update packets need to be…

Information Theory · Computer Science 2024-04-04 Jianhang Zhu , Jie Gong

A sensor samples and transmits status updates to a destination through a wireless channel that wears out over time and with every use. At each time slot, the sensor can decide to sample and transmit a fresh status update, restore the…

Information Theory · Computer Science 2023-12-05 George J. Stamatakis , Osvaldo Simeone , Nikolaos Pappas

Modern sensing and monitoring applications typically consist of sources transmitting updates of different sizes, ranging from a few bytes (position, temperature, etc.) to multiple megabytes (images, video frames, LIDAR point scans, etc.).…

Systems and Control · Electrical Eng. & Systems 2025-12-09 Zhuoyi Zhao , Vishrant Tripathi , Igor Kadota

The freshness of status updates is imperative in mission-critical Internet of things (IoT) applications. Recently, Age of Information (AoI) has been proposed to measure the freshness of updates at the receiver. However, AoI only…

Information Theory · Computer Science 2020-03-03 Wenrui Lin , Xijun Wang , Chao Xu , Xinghua Sun , Xiang Chen

Future wireless systems need to support diverse big data and Internet of Things (IoT) applications with dramatically different quality of service (QoS) requirements. Novel designs across the protocol stack are required to achieve effective…

Signal Processing · Electrical Eng. & Systems 2019-04-18 Hong-Chuan Yang , Mohamed-Slim Alouini

With the rapid growth of real-time Internet of Things (IoT) applications, the need for fresh information has surged. Age of Information (AoI) is a tailor-made metric to characterize the information freshness perceived by the devices. In…

Information Theory · Computer Science 2019-03-12 Jingzhou Sun , Zhiyuan Jiang , Sheng Zhou , Zhisheng Niu

In compute-first networking, maintaining fresh and accurate status information at the network edge is crucial for effective access to remote services. This process typically involves three phases: Status updating, user accessing, and user…

Networking and Internet Architecture · Computer Science 2024-12-25 Haosheng He , Jianpeng Qi , Chao Liu , Junyu Dong , Yanwei Yu

Quality of service (QoS) for a network is characterized in terms of various parameters specifying packet delay and loss tolerance requirements for the application. The unpredictable nature of the wireless channel demands for application of…

Information Theory · Computer Science 2016-11-17 M. Majid Butt , Eduard A. Jorswieck , Bjorn Ottersten

Future wireless applications such as high definition video streaming, wireless cloud radio access networks, and cellular data offload are bandwidth-hungry, which highlights the need for Wi-Fi links exceeding 1 Gb/s. This article discusses…

Information Theory · Computer Science 2019-01-08 A. G. D. Uchoa , R. C. de Lamare

We consider a wireless network with a base station serving multiple traffic streams to different destinations. Packets from each stream arrive to the base station according to a stochastic process and are enqueued in a separate (per stream)…

Networking and Internet Architecture · Computer Science 2019-05-20 Igor Kadota , Eytan Modiano

Cross-technology communication (CTC) was proposed in recent literature as a way to exploit the opportunities of collaboration between heterogeneous wireless technologies. This paper presents LtFi, a system which enables to set-up a CTC…

Networking and Internet Architecture · Computer Science 2017-07-24 Piotr Gawłowicz , Anatolij Zubow , Adam Wolisz

This letter investigates the performance of emerging wireless communication systems assisted by a fluid reconfigurable intelligent surface (FRIS). Unlike conventional reconfigurable intelligent surfaces (RISs), an FRIS consists of…

Federated Learning (FL) allows devices to train a global machine learning model without sharing data. In the context of wireless networks, the inherently unreliable nature of the transmission channel introduces delays and errors that…

Networking and Internet Architecture · Computer Science 2024-08-05 Renan R. de Oliveira , Kleber V. Cardoso , Antonio Oliveira-Jr

In this paper, we consider a wireless network consisting of a base station (BS) that is serving multiple real-time traffic streams forwarding information updates to their destinations in order to sustain the freshness of information for…

Signal Processing · Electrical Eng. & Systems 2022-04-14 Ali Muhammad , Mohamed Elhattab , Mohamed Amine Arfaoui , Ahmed Al-Hilo , Chadi Assi

We consider a scenario where a base station (BS) attempts to collect fresh information from power constrained sensors over time-varying band-limited wireless channels. We characterize the data freshness through the recently proposed…

Information Theory · Computer Science 2019-10-15 Haoyue Tang , Jintao Wang , Philippe Ciblat , Jian Song

Consider a network where a wireless base station (BS) connects multiple source-destination pairs. Packets from each source are generated according to a renewal process and are enqueued in a single-packet queue that stores only the freshest…

Networking and Internet Architecture · Computer Science 2025-01-14 Zhuoyi Zhao , Igor Kadota

Security in the Internet of Things (IoT) requires ways to regularly update firmware in the field. These demands ever increase with new, agile concepts such as security as code and should be considered a regular operation. Hosting massive…

Networking and Internet Architecture · Computer Science 2021-09-06 Cenk Gündoğan , Christian Amsüss , Thomas C. Schmidt , Matthias Wählisch

The vast adoption of Wi-Fi and/or Bluetooth capabilities in Internet of Things (IoT) devices, along with the rapid growth of deployed smart devices, has caused significant interference and congestion in the industrial, scientific, and…

Networking and Internet Architecture · Computer Science 2024-10-22 Jinzhe Pan , Jingqing Wang , Zelin Yun , Zhiyong Xiao , Yuehui Ouyang , Wenchi Cheng , Wei Zhang

This paper considers a cooperative Internet of Things (IoT) system with a source aiming to transmit randomly generated status updates to a designated destination as timely as possible under the help of a relay. We adopt a recently proposed…

Information Theory · Computer Science 2021-01-05 Bohai Li , Qian Wang , He Chen , Yong Zhou , Yonghui Li

Edge-caching has received much attention as an efficient technique to reduce delivery latency and network congestion during peak-traffic times by bringing data closer to end users. Existing works usually design caching algorithms separately…

Information Theory · Computer Science 2018-02-08 Thang X. Vu , Symeon Chatzinotas , Bjorn Ottersten